./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:37:10,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:37:10,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:37:10,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:37:10,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:37:10,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:37:10,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:37:10,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:37:10,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:37:10,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:37:10,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:37:10,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:37:10,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:37:11,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:37:11,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:37:11,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:37:11,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:37:11,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:37:11,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:37:11,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:37:11,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:37:11,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:37:11,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:37:11,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:37:11,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:37:11,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:37:11,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:37:11,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:37:11,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:37:11,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:37:11,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:37:11,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:37:11,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:37:11,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:37:11,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:37:11,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:37:11,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:37:11,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:37:11,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:37:11,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:37:11,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:37:11,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:37:11,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:37:11,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:37:11,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:37:11,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:37:11,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:37:11,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:37:11,125 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:37:11,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:37:11,125 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:37:11,126 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:37:11,127 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:37:11,127 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:37:11,128 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:37:11,128 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:37:11,128 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:37:11,129 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:37:11,129 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:37:11,129 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:37:11,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:37:11,131 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:37:11,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:37:11,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:37:11,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:37:11,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:37:11,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:37:11,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:37:11,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:37:11,134 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:37:11,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:37:11,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:37:11,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:37:11,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:37:11,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:37:11,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:37:11,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:37:11,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:37:11,138 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:37:11,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:37:11,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:37:11,139 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:37:11,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:37:11,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:37:11,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:37:11,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2022-11-23 14:37:11,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:37:11,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:37:11,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:37:11,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:37:11,570 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:37:11,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-23 14:37:15,219 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:37:15,537 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:37:15,538 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-23 14:37:15,556 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data/fe64916a7/7c1700f0238244e085f0e25669af2b49/FLAG3094a2472 [2022-11-23 14:37:15,575 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data/fe64916a7/7c1700f0238244e085f0e25669af2b49 [2022-11-23 14:37:15,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:37:15,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:37:15,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:37:15,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:37:15,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:37:15,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:15" (1/1) ... [2022-11-23 14:37:15,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63177c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:15, skipping insertion in model container [2022-11-23 14:37:15,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:15" (1/1) ... [2022-11-23 14:37:15,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:37:15,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:37:15,852 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:37:16,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-23 14:37:16,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-23 14:37:16,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-23 14:37:16,325 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-23 14:37:16,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-23 14:37:16,328 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-23 14:37:16,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:37:16,346 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:37:16,372 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:37:16,414 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-23 14:37:16,415 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-23 14:37:16,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-23 14:37:16,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-23 14:37:16,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-23 14:37:16,422 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-23 14:37:16,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:37:16,483 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:37:16,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16 WrapperNode [2022-11-23 14:37:16,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:37:16,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:37:16,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:37:16,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:37:16,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,616 INFO L138 Inliner]: procedures = 225, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 198 [2022-11-23 14:37:16,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:37:16,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:37:16,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:37:16,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:37:16,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:37:16,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:37:16,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:37:16,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:37:16,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (1/1) ... [2022-11-23 14:37:16,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:37:16,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:16,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:37:16,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:37:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:37:16,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:37:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:37:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:37:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:37:16,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:37:16,799 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-11-23 14:37:16,799 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-11-23 14:37:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:37:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:37:16,803 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:37:16,994 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:37:16,997 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:37:17,707 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:37:17,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:37:17,719 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 14:37:17,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:17 BoogieIcfgContainer [2022-11-23 14:37:17,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:37:17,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:37:17,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:37:17,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:37:17,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:37:15" (1/3) ... [2022-11-23 14:37:17,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240aecf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:17, skipping insertion in model container [2022-11-23 14:37:17,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:16" (2/3) ... [2022-11-23 14:37:17,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240aecf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:17, skipping insertion in model container [2022-11-23 14:37:17,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:17" (3/3) ... [2022-11-23 14:37:17,747 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-11-23 14:37:17,762 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:37:17,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:37:17,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-23 14:37:17,777 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:37:17,906 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 14:37:17,953 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:37:17,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-23 14:37:17,976 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-23 14:37:17,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 484 flow [2022-11-23 14:37:18,173 INFO L130 PetriNetUnfolder]: 9/237 cut-off events. [2022-11-23 14:37:18,173 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 14:37:18,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 237 events. 9/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 515 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 180. Up to 2 conditions per place. [2022-11-23 14:37:18,193 INFO L119 LiptonReduction]: Number of co-enabled transitions 16182 [2022-11-23 14:37:34,370 INFO L134 LiptonReduction]: Checked pairs total: 162558 [2022-11-23 14:37:34,371 INFO L136 LiptonReduction]: Total number of compositions: 174 [2022-11-23 14:37:34,381 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 104 transitions, 216 flow [2022-11-23 14:37:34,497 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:34,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:37:34,543 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b5d5a43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:37:34,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-23 14:37:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 14:37:34,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:34,560 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 14:37:34,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:34,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash 808, now seen corresponding path program 1 times [2022-11-23 14:37:34,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:34,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106009595] [2022-11-23 14:37:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:34,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:34,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:34,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106009595] [2022-11-23 14:37:34,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106009595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:34,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:34,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 14:37:34,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488745797] [2022-11-23 14:37:34,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:34,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:37:34,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:34,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:37:34,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:37:34,802 INFO L87 Difference]: Start difference. First operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:34,943 INFO L93 Difference]: Finished difference Result 2194 states and 4429 transitions. [2022-11-23 14:37:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:37:34,947 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-23 14:37:34,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:34,989 INFO L225 Difference]: With dead ends: 2194 [2022-11-23 14:37:34,989 INFO L226 Difference]: Without dead ends: 2194 [2022-11-23 14:37:34,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:37:34,996 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:35,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:37:35,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-11-23 14:37:35,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2022-11-23 14:37:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2139 states have (on average 2.070593735390369) internal successors, (4429), 2193 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:35,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 4429 transitions. [2022-11-23 14:37:35,192 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 4429 transitions. Word has length 1 [2022-11-23 14:37:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:35,193 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 4429 transitions. [2022-11-23 14:37:35,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 4429 transitions. [2022-11-23 14:37:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:37:35,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:35,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:35,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:37:35,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:35,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash 258736366, now seen corresponding path program 1 times [2022-11-23 14:37:35,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:35,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426008865] [2022-11-23 14:37:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:35,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:36,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:36,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426008865] [2022-11-23 14:37:36,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426008865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:36,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:36,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:37:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087248793] [2022-11-23 14:37:36,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:36,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:37:36,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:36,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:37:36,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:36,096 INFO L87 Difference]: Start difference. First operand 2194 states and 4429 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:37,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:37,225 INFO L93 Difference]: Finished difference Result 3292 states and 6647 transitions. [2022-11-23 14:37:37,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:37:37,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:37:37,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:37,248 INFO L225 Difference]: With dead ends: 3292 [2022-11-23 14:37:37,248 INFO L226 Difference]: Without dead ends: 3292 [2022-11-23 14:37:37,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:37,250 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 110 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:37,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 102 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 14:37:37,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2022-11-23 14:37:37,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2592. [2022-11-23 14:37:37,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 2537 states have (on average 2.06267244777296) internal successors, (5233), 2591 states have internal predecessors, (5233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 5233 transitions. [2022-11-23 14:37:37,350 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 5233 transitions. Word has length 9 [2022-11-23 14:37:37,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:37,350 INFO L495 AbstractCegarLoop]: Abstraction has 2592 states and 5233 transitions. [2022-11-23 14:37:37,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:37,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 5233 transitions. [2022-11-23 14:37:37,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:37:37,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:37,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:37,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:37:37,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:37,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:37,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1004048598, now seen corresponding path program 1 times [2022-11-23 14:37:37,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:37,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992826169] [2022-11-23 14:37:37,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:37,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:37,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:37,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992826169] [2022-11-23 14:37:37,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992826169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:37,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:37,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:37:37,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888840110] [2022-11-23 14:37:37,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:37,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:37:37,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:37,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:37:37,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:37:37,404 INFO L87 Difference]: Start difference. First operand 2592 states and 5233 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:37,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:37,587 INFO L93 Difference]: Finished difference Result 4418 states and 8921 transitions. [2022-11-23 14:37:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:37:37,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:37:37,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:37,615 INFO L225 Difference]: With dead ends: 4418 [2022-11-23 14:37:37,616 INFO L226 Difference]: Without dead ends: 4418 [2022-11-23 14:37:37,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:37:37,621 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 79 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:37,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 193 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:37:37,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2022-11-23 14:37:37,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 2643. [2022-11-23 14:37:37,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2588 states have (on average 2.061823802163833) internal successors, (5336), 2642 states have internal predecessors, (5336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 5336 transitions. [2022-11-23 14:37:37,869 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 5336 transitions. Word has length 9 [2022-11-23 14:37:37,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:37,869 INFO L495 AbstractCegarLoop]: Abstraction has 2643 states and 5336 transitions. [2022-11-23 14:37:37,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 5336 transitions. [2022-11-23 14:37:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:37:37,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:37,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:37,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:37:37,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:37,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2065645319, now seen corresponding path program 1 times [2022-11-23 14:37:37,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:37,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324907989] [2022-11-23 14:37:37,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:37,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:37,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:37,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:37,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324907989] [2022-11-23 14:37:37,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324907989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:37,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:37,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:37:37,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349434960] [2022-11-23 14:37:37,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:37,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:37:37,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:37:37,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:37:37,934 INFO L87 Difference]: Start difference. First operand 2643 states and 5336 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:38,041 INFO L93 Difference]: Finished difference Result 4639 states and 9370 transitions. [2022-11-23 14:37:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:37:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:37:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:38,065 INFO L225 Difference]: With dead ends: 4639 [2022-11-23 14:37:38,065 INFO L226 Difference]: Without dead ends: 4639 [2022-11-23 14:37:38,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:37:38,067 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 86 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:38,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 185 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:37:38,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-11-23 14:37:38,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 2685. [2022-11-23 14:37:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2630 states have (on average 2.0608365019011408) internal successors, (5420), 2684 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 5420 transitions. [2022-11-23 14:37:38,180 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 5420 transitions. Word has length 9 [2022-11-23 14:37:38,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:38,180 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 5420 transitions. [2022-11-23 14:37:38,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:38,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 5420 transitions. [2022-11-23 14:37:38,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:37:38,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:38,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:38,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:37:38,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:38,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:38,184 INFO L85 PathProgramCache]: Analyzing trace with hash 273430088, now seen corresponding path program 1 times [2022-11-23 14:37:38,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:38,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145377340] [2022-11-23 14:37:38,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:38,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:38,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:38,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145377340] [2022-11-23 14:37:38,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145377340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:38,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:38,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:37:38,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386417795] [2022-11-23 14:37:38,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:38,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:37:38,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:38,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:37:38,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:38,511 INFO L87 Difference]: Start difference. First operand 2685 states and 5420 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:39,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:39,759 INFO L93 Difference]: Finished difference Result 4029 states and 8148 transitions. [2022-11-23 14:37:39,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:37:39,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 14:37:39,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:39,781 INFO L225 Difference]: With dead ends: 4029 [2022-11-23 14:37:39,781 INFO L226 Difference]: Without dead ends: 4029 [2022-11-23 14:37:39,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:39,783 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 87 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:39,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 97 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-23 14:37:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-11-23 14:37:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3129. [2022-11-23 14:37:39,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3080 states have (on average 2.048051948051948) internal successors, (6308), 3128 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 6308 transitions. [2022-11-23 14:37:39,912 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 6308 transitions. Word has length 10 [2022-11-23 14:37:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:39,912 INFO L495 AbstractCegarLoop]: Abstraction has 3129 states and 6308 transitions. [2022-11-23 14:37:39,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 6308 transitions. [2022-11-23 14:37:39,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 14:37:39,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:39,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:39,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:37:39,918 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:39,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 69120469, now seen corresponding path program 1 times [2022-11-23 14:37:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:39,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205069988] [2022-11-23 14:37:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:40,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:40,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205069988] [2022-11-23 14:37:40,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205069988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:40,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:40,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:37:40,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250660158] [2022-11-23 14:37:40,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:40,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:37:40,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:40,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:37:40,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:40,309 INFO L87 Difference]: Start difference. First operand 3129 states and 6308 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:41,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:41,310 INFO L93 Difference]: Finished difference Result 3300 states and 6654 transitions. [2022-11-23 14:37:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:37:41,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 14:37:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:41,330 INFO L225 Difference]: With dead ends: 3300 [2022-11-23 14:37:41,330 INFO L226 Difference]: Without dead ends: 3300 [2022-11-23 14:37:41,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:41,332 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:41,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 115 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 14:37:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2022-11-23 14:37:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300. [2022-11-23 14:37:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3254 states have (on average 2.0448678549477566) internal successors, (6654), 3299 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6654 transitions. [2022-11-23 14:37:41,461 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6654 transitions. Word has length 15 [2022-11-23 14:37:41,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:41,462 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 6654 transitions. [2022-11-23 14:37:41,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6654 transitions. [2022-11-23 14:37:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:37:41,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:41,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:41,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:37:41,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1964878187, now seen corresponding path program 1 times [2022-11-23 14:37:41,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:41,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615769851] [2022-11-23 14:37:41,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:41,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:41,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:41,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615769851] [2022-11-23 14:37:41,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615769851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:41,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:41,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:37:41,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403320657] [2022-11-23 14:37:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:41,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:37:41,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:41,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:37:41,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:41,822 INFO L87 Difference]: Start difference. First operand 3300 states and 6654 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:42,710 INFO L93 Difference]: Finished difference Result 4367 states and 8827 transitions. [2022-11-23 14:37:42,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:37:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 14:37:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:42,730 INFO L225 Difference]: With dead ends: 4367 [2022-11-23 14:37:42,731 INFO L226 Difference]: Without dead ends: 4367 [2022-11-23 14:37:42,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:42,732 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 84 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:42,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 100 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 14:37:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-11-23 14:37:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 3439. [2022-11-23 14:37:42,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3396 states have (on average 2.0527090694935217) internal successors, (6971), 3438 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6971 transitions. [2022-11-23 14:37:42,845 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6971 transitions. Word has length 16 [2022-11-23 14:37:42,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:42,845 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 6971 transitions. [2022-11-23 14:37:42,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6971 transitions. [2022-11-23 14:37:42,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 14:37:42,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:42,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:42,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:37:42,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:42,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:42,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1827960211, now seen corresponding path program 1 times [2022-11-23 14:37:42,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:42,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838793850] [2022-11-23 14:37:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:42,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:43,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:43,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838793850] [2022-11-23 14:37:43,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838793850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:43,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:43,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:37:43,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112215012] [2022-11-23 14:37:43,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:43,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:37:43,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:43,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:37:43,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:43,230 INFO L87 Difference]: Start difference. First operand 3439 states and 6971 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:44,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:44,087 INFO L93 Difference]: Finished difference Result 3633 states and 7363 transitions. [2022-11-23 14:37:44,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:37:44,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-23 14:37:44,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:44,100 INFO L225 Difference]: With dead ends: 3633 [2022-11-23 14:37:44,100 INFO L226 Difference]: Without dead ends: 3633 [2022-11-23 14:37:44,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:44,101 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:44,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 112 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 14:37:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-11-23 14:37:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3633. [2022-11-23 14:37:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3590 states have (on average 2.050974930362117) internal successors, (7363), 3632 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 7363 transitions. [2022-11-23 14:37:44,195 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 7363 transitions. Word has length 27 [2022-11-23 14:37:44,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:44,195 INFO L495 AbstractCegarLoop]: Abstraction has 3633 states and 7363 transitions. [2022-11-23 14:37:44,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 7363 transitions. [2022-11-23 14:37:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:37:44,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:44,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:44,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:37:44,198 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2036408778, now seen corresponding path program 1 times [2022-11-23 14:37:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:44,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332898447] [2022-11-23 14:37:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:44,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:44,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332898447] [2022-11-23 14:37:44,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332898447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:44,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:44,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:37:44,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778267949] [2022-11-23 14:37:44,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:44,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:37:44,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:44,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:37:44,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:44,490 INFO L87 Difference]: Start difference. First operand 3633 states and 7363 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:45,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:45,353 INFO L93 Difference]: Finished difference Result 3795 states and 7687 transitions. [2022-11-23 14:37:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:37:45,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-23 14:37:45,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:45,367 INFO L225 Difference]: With dead ends: 3795 [2022-11-23 14:37:45,367 INFO L226 Difference]: Without dead ends: 3795 [2022-11-23 14:37:45,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:37:45,368 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 76 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:45,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 106 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 14:37:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-11-23 14:37:45,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3795. [2022-11-23 14:37:45,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3752 states have (on average 2.048773987206823) internal successors, (7687), 3794 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 7687 transitions. [2022-11-23 14:37:45,473 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 7687 transitions. Word has length 28 [2022-11-23 14:37:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:45,473 INFO L495 AbstractCegarLoop]: Abstraction has 3795 states and 7687 transitions. [2022-11-23 14:37:45,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 7687 transitions. [2022-11-23 14:37:45,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:37:45,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:45,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:45,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:37:45,477 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:45,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 992999868, now seen corresponding path program 1 times [2022-11-23 14:37:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:45,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522991443] [2022-11-23 14:37:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:45,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:48,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:48,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522991443] [2022-11-23 14:37:48,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522991443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:48,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:48,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:37:48,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224890211] [2022-11-23 14:37:48,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:48,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:37:48,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:48,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:37:48,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:37:48,553 INFO L87 Difference]: Start difference. First operand 3795 states and 7687 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:56,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:56,228 INFO L93 Difference]: Finished difference Result 7280 states and 14777 transitions. [2022-11-23 14:37:56,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 14:37:56,229 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:37:56,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:56,250 INFO L225 Difference]: With dead ends: 7280 [2022-11-23 14:37:56,251 INFO L226 Difference]: Without dead ends: 7280 [2022-11-23 14:37:56,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 14:37:56,252 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 682 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:56,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 548 Invalid, 3184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 14:37:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7280 states. [2022-11-23 14:37:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7280 to 4547. [2022-11-23 14:37:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4504 states have (on average 2.053063943161634) internal successors, (9247), 4546 states have internal predecessors, (9247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 9247 transitions. [2022-11-23 14:37:56,465 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 9247 transitions. Word has length 31 [2022-11-23 14:37:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:56,466 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 9247 transitions. [2022-11-23 14:37:56,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:37:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 9247 transitions. [2022-11-23 14:37:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:37:56,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:56,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:56,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:37:56,471 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:37:56,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:56,472 INFO L85 PathProgramCache]: Analyzing trace with hash 845915545, now seen corresponding path program 1 times [2022-11-23 14:37:56,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:56,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339306769] [2022-11-23 14:37:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:56,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:37:58,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:58,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339306769] [2022-11-23 14:37:58,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339306769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:58,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:58,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:37:58,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797695999] [2022-11-23 14:37:58,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:58,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:37:58,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:37:58,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:37:58,258 INFO L87 Difference]: Start difference. First operand 4547 states and 9247 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:02,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:02,513 INFO L93 Difference]: Finished difference Result 7954 states and 16226 transitions. [2022-11-23 14:38:02,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 14:38:02,513 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:38:02,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:02,535 INFO L225 Difference]: With dead ends: 7954 [2022-11-23 14:38:02,536 INFO L226 Difference]: Without dead ends: 7954 [2022-11-23 14:38:02,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:38:02,537 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 538 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 3870 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 3898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:02,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 594 Invalid, 3898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3870 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-23 14:38:02,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7954 states. [2022-11-23 14:38:02,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7954 to 5443. [2022-11-23 14:38:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5400 states have (on average 2.0824074074074073) internal successors, (11245), 5442 states have internal predecessors, (11245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 11245 transitions. [2022-11-23 14:38:02,684 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 11245 transitions. Word has length 31 [2022-11-23 14:38:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:02,684 INFO L495 AbstractCegarLoop]: Abstraction has 5443 states and 11245 transitions. [2022-11-23 14:38:02,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 11245 transitions. [2022-11-23 14:38:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:38:02,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:02,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:02,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:38:02,688 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1142326430, now seen corresponding path program 1 times [2022-11-23 14:38:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:38:02,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3273500] [2022-11-23 14:38:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:38:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:04,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:38:04,176 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:383) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:848) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:776) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:343) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:343) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:198) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:296) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-23 14:38:04,184 INFO L158 Benchmark]: Toolchain (without parser) took 48602.15ms. Allocated memory was 186.6MB in the beginning and 490.7MB in the end (delta: 304.1MB). Free memory was 140.1MB in the beginning and 230.8MB in the end (delta: -90.7MB). Peak memory consumption was 253.0MB. Max. memory is 16.1GB. [2022-11-23 14:38:04,185 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:38:04,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.78ms. Allocated memory is still 186.6MB. Free memory was 139.9MB in the beginning and 113.5MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 14:38:04,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.47ms. Allocated memory is still 186.6MB. Free memory was 113.5MB in the beginning and 109.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:38:04,186 INFO L158 Benchmark]: Boogie Preprocessor took 57.28ms. Allocated memory is still 186.6MB. Free memory was 109.9MB in the beginning and 107.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:38:04,186 INFO L158 Benchmark]: RCFGBuilder took 1057.33ms. Allocated memory is still 186.6MB. Free memory was 107.2MB in the beginning and 147.8MB in the end (delta: -40.5MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-11-23 14:38:04,187 INFO L158 Benchmark]: TraceAbstraction took 46447.99ms. Allocated memory was 186.6MB in the beginning and 490.7MB in the end (delta: 304.1MB). Free memory was 146.7MB in the beginning and 230.8MB in the end (delta: -84.1MB). Peak memory consumption was 257.7MB. Max. memory is 16.1GB. [2022-11-23 14:38:04,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.78ms. Allocated memory is still 186.6MB. Free memory was 139.9MB in the beginning and 113.5MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.47ms. Allocated memory is still 186.6MB. Free memory was 113.5MB in the beginning and 109.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.28ms. Allocated memory is still 186.6MB. Free memory was 109.9MB in the beginning and 107.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1057.33ms. Allocated memory is still 186.6MB. Free memory was 107.2MB in the beginning and 147.8MB in the end (delta: -40.5MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 46447.99ms. Allocated memory was 186.6MB in the beginning and 490.7MB in the end (delta: 304.1MB). Free memory was 146.7MB in the beginning and 230.8MB in the end (delta: -84.1MB). Peak memory consumption was 257.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4s, 233 PlacesBefore, 103 PlacesAfterwards, 238 TransitionsBefore, 104 TransitionsAfterwards, 16182 CoEnabledTransitionPairs, 16 FixpointIterations, 59 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 4 ChoiceCompositions, 174 TotalNumberOfCompositions, 162558 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33200, independent: 30284, independent conditional: 0, independent unconditional: 30284, dependent: 2916, dependent conditional: 0, dependent unconditional: 2916, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10389, independent: 10090, independent conditional: 0, independent unconditional: 10090, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10389, independent: 8856, independent conditional: 0, independent unconditional: 8856, dependent: 1533, dependent conditional: 0, dependent unconditional: 1533, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1533, independent: 1234, independent conditional: 0, independent unconditional: 1234, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3561, independent: 2456, independent conditional: 0, independent unconditional: 2456, dependent: 1104, dependent conditional: 0, dependent unconditional: 1104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33200, independent: 20194, independent conditional: 0, independent unconditional: 20194, dependent: 2617, dependent conditional: 0, dependent unconditional: 2617, unknown: 10389, unknown conditional: 0, unknown unconditional: 10389] , Statistics on independence cache: Total cache size (in pairs): 1976, Positive cache size: 1723, Positive conditional cache size: 0, Positive unconditional cache size: 1723, Negative cache size: 253, Negative conditional cache size: 0, Negative unconditional cache size: 253, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkInductivity(InterpolantChecker.java:409) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-23 14:38:04,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:38:06,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:38:06,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:38:06,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:38:06,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:38:06,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:38:06,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:38:06,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:38:06,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:38:06,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:38:06,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:38:06,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:38:06,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:38:06,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:38:06,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:38:06,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:38:06,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:38:06,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:38:06,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:38:06,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:38:06,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:38:06,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:38:06,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:38:06,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:38:06,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:38:06,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:38:06,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:38:06,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:38:06,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:38:06,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:38:06,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:38:06,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:38:06,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:38:06,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:38:06,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:38:06,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:38:06,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:38:06,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:38:06,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:38:06,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:38:06,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:38:06,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2022-11-23 14:38:06,807 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:38:06,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:38:06,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:38:06,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:38:06,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:38:06,809 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:38:06,809 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:38:06,809 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:38:06,809 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:38:06,809 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:38:06,810 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:38:06,810 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:38:06,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:38:06,811 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:38:06,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:38:06,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:38:06,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:38:06,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:38:06,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:38:06,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:38:06,812 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:38:06,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:38:06,813 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:38:06,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:38:06,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:38:06,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:38:06,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:38:06,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:38:06,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:38:06,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:38:06,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:38:06,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:38:06,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:38:06,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:38:06,816 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:38:06,816 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:38:06,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:38:06,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:38:06,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:38:06,828 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2022-11-23 14:38:07,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:38:07,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:38:07,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:38:07,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:38:07,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:38:07,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-23 14:38:10,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:38:10,667 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:38:10,667 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-23 14:38:10,683 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data/b160b9d56/8b59f9ab26324eb8b96a66e83a8e82f7/FLAG48b7f8669 [2022-11-23 14:38:10,703 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/data/b160b9d56/8b59f9ab26324eb8b96a66e83a8e82f7 [2022-11-23 14:38:10,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:38:10,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:38:10,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:38:10,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:38:10,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:38:10,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:10" (1/1) ... [2022-11-23 14:38:10,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352ed444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:10, skipping insertion in model container [2022-11-23 14:38:10,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:10" (1/1) ... [2022-11-23 14:38:10,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:38:10,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:38:11,045 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:38:11,497 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-23 14:38:11,500 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-23 14:38:11,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-23 14:38:11,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-23 14:38:11,515 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-23 14:38:11,517 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-23 14:38:11,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:38:11,550 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:38:11,574 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:38:11,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-23 14:38:11,657 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-23 14:38:11,658 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-23 14:38:11,663 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-23 14:38:11,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-23 14:38:11,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-23 14:38:11,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:38:11,769 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:38:11,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11 WrapperNode [2022-11-23 14:38:11,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:38:11,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:38:11,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:38:11,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:38:11,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,895 INFO L138 Inliner]: procedures = 228, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 198 [2022-11-23 14:38:11,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:38:11,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:38:11,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:38:11,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:38:11,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:38:11,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:38:11,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:38:11,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:38:11,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (1/1) ... [2022-11-23 14:38:11,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:38:12,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:38:12,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:38:12,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:38:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:38:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:38:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:38:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:38:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:38:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:38:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-11-23 14:38:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-11-23 14:38:12,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:38:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:38:12,087 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:38:12,326 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:38:12,328 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:38:13,257 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:38:13,276 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:38:13,279 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 14:38:13,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:13 BoogieIcfgContainer [2022-11-23 14:38:13,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:38:13,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:38:13,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:38:13,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:38:13,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:38:10" (1/3) ... [2022-11-23 14:38:13,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680f0919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:13, skipping insertion in model container [2022-11-23 14:38:13,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:11" (2/3) ... [2022-11-23 14:38:13,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680f0919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:38:13, skipping insertion in model container [2022-11-23 14:38:13,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:13" (3/3) ... [2022-11-23 14:38:13,304 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-11-23 14:38:13,320 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:38:13,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:38:13,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-23 14:38:13,336 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:38:13,542 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 14:38:13,625 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:38:13,661 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-23 14:38:13,668 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 238 transitions, 484 flow [2022-11-23 14:38:13,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 484 flow [2022-11-23 14:38:13,866 INFO L130 PetriNetUnfolder]: 9/237 cut-off events. [2022-11-23 14:38:13,867 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 14:38:13,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 237 events. 9/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 514 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 179. Up to 2 conditions per place. [2022-11-23 14:38:13,889 INFO L119 LiptonReduction]: Number of co-enabled transitions 16008 [2022-11-23 14:38:41,611 INFO L134 LiptonReduction]: Checked pairs total: 163142 [2022-11-23 14:38:41,611 INFO L136 LiptonReduction]: Total number of compositions: 173 [2022-11-23 14:38:41,626 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 104 transitions, 216 flow [2022-11-23 14:38:41,736 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:41,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:38:41,767 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7bf1cfd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:38:41,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-23 14:38:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 14:38:41,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:41,783 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 14:38:41,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:41,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:41,790 INFO L85 PathProgramCache]: Analyzing trace with hash 807, now seen corresponding path program 1 times [2022-11-23 14:38:41,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:41,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854257234] [2022-11-23 14:38:41,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:41,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:41,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:41,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:41,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:38:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:41,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:38:41,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:41,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:41,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:41,903 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:41,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854257234] [2022-11-23 14:38:41,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854257234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:41,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:41,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 14:38:41,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045364403] [2022-11-23 14:38:41,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:41,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:38:41,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:41,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:38:41,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:38:41,939 INFO L87 Difference]: Start difference. First operand has 2196 states, 2139 states have (on average 2.115007012622721) internal successors, (4524), 2195 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:42,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:42,202 INFO L93 Difference]: Finished difference Result 2194 states and 4429 transitions. [2022-11-23 14:38:42,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:38:42,207 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-23 14:38:42,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:42,236 INFO L225 Difference]: With dead ends: 2194 [2022-11-23 14:38:42,237 INFO L226 Difference]: Without dead ends: 2194 [2022-11-23 14:38:42,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:38:42,242 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:42,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:38:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-11-23 14:38:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2022-11-23 14:38:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2139 states have (on average 2.070593735390369) internal successors, (4429), 2193 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 4429 transitions. [2022-11-23 14:38:42,393 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 4429 transitions. Word has length 1 [2022-11-23 14:38:42,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:42,393 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 4429 transitions. [2022-11-23 14:38:42,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 4429 transitions. [2022-11-23 14:38:42,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:38:42,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:42,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:42,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:42,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:42,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:42,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:42,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1325941841, now seen corresponding path program 1 times [2022-11-23 14:38:42,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:42,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844356099] [2022-11-23 14:38:42,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:42,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:42,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:42,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:38:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:42,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:38:42,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:42,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:42,930 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:42,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844356099] [2022-11-23 14:38:42,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844356099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:42,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:42,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:38:42,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098595232] [2022-11-23 14:38:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:42,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:38:42,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:42,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:38:42,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:38:42,950 INFO L87 Difference]: Start difference. First operand 2194 states and 4429 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:43,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:43,224 INFO L93 Difference]: Finished difference Result 4043 states and 8170 transitions. [2022-11-23 14:38:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:38:43,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:38:43,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:43,244 INFO L225 Difference]: With dead ends: 4043 [2022-11-23 14:38:43,245 INFO L226 Difference]: Without dead ends: 4043 [2022-11-23 14:38:43,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:38:43,253 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 86 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:43,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 187 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:38:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2022-11-23 14:38:43,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 2237. [2022-11-23 14:38:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2182 states have (on average 2.0692025664527955) internal successors, (4515), 2236 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:43,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 4515 transitions. [2022-11-23 14:38:43,346 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 4515 transitions. Word has length 9 [2022-11-23 14:38:43,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:43,347 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 4515 transitions. [2022-11-23 14:38:43,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:43,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 4515 transitions. [2022-11-23 14:38:43,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:38:43,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:43,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:43,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:43,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:43,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:43,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:43,566 INFO L85 PathProgramCache]: Analyzing trace with hash 498973350, now seen corresponding path program 1 times [2022-11-23 14:38:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:43,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91581588] [2022-11-23 14:38:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:43,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:43,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:43,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:43,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 14:38:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:43,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:38:43,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:43,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:38:43,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:38:43,915 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:43,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:38:43,985 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:43,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:38:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:44,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:44,043 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:44,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91581588] [2022-11-23 14:38:44,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91581588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:44,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:44,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:38:44,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144619614] [2022-11-23 14:38:44,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:44,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:38:44,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:44,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:38:44,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:44,045 INFO L87 Difference]: Start difference. First operand 2237 states and 4515 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:46,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:46,074 INFO L93 Difference]: Finished difference Result 3333 states and 6729 transitions. [2022-11-23 14:38:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:38:46,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:38:46,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:46,090 INFO L225 Difference]: With dead ends: 3333 [2022-11-23 14:38:46,091 INFO L226 Difference]: Without dead ends: 3333 [2022-11-23 14:38:46,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:46,092 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 110 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:46,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 102 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 14:38:46,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2022-11-23 14:38:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2633. [2022-11-23 14:38:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2578 states have (on average 2.0616757176105507) internal successors, (5315), 2632 states have internal predecessors, (5315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 5315 transitions. [2022-11-23 14:38:46,176 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 5315 transitions. Word has length 9 [2022-11-23 14:38:46,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:46,177 INFO L495 AbstractCegarLoop]: Abstraction has 2633 states and 5315 transitions. [2022-11-23 14:38:46,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 5315 transitions. [2022-11-23 14:38:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:38:46,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:46,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:46,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:46,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:46,393 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:46,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:46,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1043881525, now seen corresponding path program 1 times [2022-11-23 14:38:46,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:46,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650452285] [2022-11-23 14:38:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:46,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:46,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:46,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:46,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-23 14:38:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:46,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:38:46,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:46,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:46,529 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:46,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650452285] [2022-11-23 14:38:46,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650452285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:46,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:46,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:38:46,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204070313] [2022-11-23 14:38:46,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:46,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:38:46,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:46,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:38:46,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:38:46,533 INFO L87 Difference]: Start difference. First operand 2633 states and 5315 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:46,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:46,743 INFO L93 Difference]: Finished difference Result 4485 states and 9055 transitions. [2022-11-23 14:38:46,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:38:46,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:38:46,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:46,764 INFO L225 Difference]: With dead ends: 4485 [2022-11-23 14:38:46,765 INFO L226 Difference]: Without dead ends: 4485 [2022-11-23 14:38:46,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:38:46,766 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 79 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:46,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 193 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:38:46,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2022-11-23 14:38:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 2685. [2022-11-23 14:38:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2630 states have (on average 2.0608365019011408) internal successors, (5420), 2684 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 5420 transitions. [2022-11-23 14:38:46,861 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 5420 transitions. Word has length 9 [2022-11-23 14:38:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:46,862 INFO L495 AbstractCegarLoop]: Abstraction has 2685 states and 5420 transitions. [2022-11-23 14:38:46,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 5420 transitions. [2022-11-23 14:38:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:38:46,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:46,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:46,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:47,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:47,087 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:47,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash 273308326, now seen corresponding path program 1 times [2022-11-23 14:38:47,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:47,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456616637] [2022-11-23 14:38:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:47,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:47,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:47,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:47,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 14:38:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:47,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:38:47,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:47,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:38:47,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:38:47,304 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:47,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:38:47,356 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:47,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:38:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:47,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:47,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:47,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456616637] [2022-11-23 14:38:47,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456616637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:47,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:47,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:38:47,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888163443] [2022-11-23 14:38:47,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:47,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:38:47,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:47,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:38:47,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:47,418 INFO L87 Difference]: Start difference. First operand 2685 states and 5420 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:49,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:49,053 INFO L93 Difference]: Finished difference Result 4029 states and 8148 transitions. [2022-11-23 14:38:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:38:49,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 14:38:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:49,070 INFO L225 Difference]: With dead ends: 4029 [2022-11-23 14:38:49,071 INFO L226 Difference]: Without dead ends: 4029 [2022-11-23 14:38:49,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:49,072 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 109 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:49,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 82 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 14:38:49,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-11-23 14:38:49,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3129. [2022-11-23 14:38:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3080 states have (on average 2.048051948051948) internal successors, (6308), 3128 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:49,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 6308 transitions. [2022-11-23 14:38:49,201 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 6308 transitions. Word has length 10 [2022-11-23 14:38:49,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:49,202 INFO L495 AbstractCegarLoop]: Abstraction has 3129 states and 6308 transitions. [2022-11-23 14:38:49,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:49,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 6308 transitions. [2022-11-23 14:38:49,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 14:38:49,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:49,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:49,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-23 14:38:49,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:49,426 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:49,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:49,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1208204915, now seen corresponding path program 1 times [2022-11-23 14:38:49,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:49,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499330798] [2022-11-23 14:38:49,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:49,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:49,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:49,429 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:49,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-23 14:38:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:49,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:38:49,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:49,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:38:49,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2022-11-23 14:38:49,653 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:49,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 47 [2022-11-23 14:38:49,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:49,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 64 [2022-11-23 14:38:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:49,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:49,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:49,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499330798] [2022-11-23 14:38:49,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499330798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:49,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:49,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:38:49,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836173963] [2022-11-23 14:38:49,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:49,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:38:49,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:49,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:38:49,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:49,791 INFO L87 Difference]: Start difference. First operand 3129 states and 6308 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:52,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:52,084 INFO L93 Difference]: Finished difference Result 3300 states and 6654 transitions. [2022-11-23 14:38:52,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:38:52,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 14:38:52,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:52,102 INFO L225 Difference]: With dead ends: 3300 [2022-11-23 14:38:52,102 INFO L226 Difference]: Without dead ends: 3300 [2022-11-23 14:38:52,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:52,104 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 96 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:52,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 115 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 14:38:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2022-11-23 14:38:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3300. [2022-11-23 14:38:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3254 states have (on average 2.0448678549477566) internal successors, (6654), 3299 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6654 transitions. [2022-11-23 14:38:52,191 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6654 transitions. Word has length 15 [2022-11-23 14:38:52,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:52,191 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 6654 transitions. [2022-11-23 14:38:52,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6654 transitions. [2022-11-23 14:38:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:38:52,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:52,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:52,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:52,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:52,408 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -851576950, now seen corresponding path program 1 times [2022-11-23 14:38:52,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:52,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731012438] [2022-11-23 14:38:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:52,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:52,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:52,410 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:52,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-23 14:38:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:52,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:38:52,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:52,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:38:52,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:38:52,584 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:52,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:38:52,634 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:52,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:38:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:52,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:52,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:52,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731012438] [2022-11-23 14:38:52,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731012438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:52,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:52,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:38:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809386585] [2022-11-23 14:38:52,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:52,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:38:52,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:38:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:52,683 INFO L87 Difference]: Start difference. First operand 3300 states and 6654 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:54,043 INFO L93 Difference]: Finished difference Result 4367 states and 8827 transitions. [2022-11-23 14:38:54,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:38:54,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 14:38:54,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:54,058 INFO L225 Difference]: With dead ends: 4367 [2022-11-23 14:38:54,058 INFO L226 Difference]: Without dead ends: 4367 [2022-11-23 14:38:54,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:54,059 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 100 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:54,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 94 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 14:38:54,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-11-23 14:38:54,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 3439. [2022-11-23 14:38:54,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3396 states have (on average 2.0527090694935217) internal successors, (6971), 3438 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:54,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6971 transitions. [2022-11-23 14:38:54,150 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6971 transitions. Word has length 16 [2022-11-23 14:38:54,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:54,151 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 6971 transitions. [2022-11-23 14:38:54,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6971 transitions. [2022-11-23 14:38:54,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 14:38:54,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:54,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:54,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:54,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:54,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1155285492, now seen corresponding path program 1 times [2022-11-23 14:38:54,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:54,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907895938] [2022-11-23 14:38:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:54,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:54,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:54,370 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:54,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-23 14:38:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:54,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:38:54,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:54,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:38:54,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:38:54,559 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:54,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:38:54,607 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:54,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:38:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:54,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:54,653 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:54,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907895938] [2022-11-23 14:38:54,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907895938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:54,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:54,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:38:54,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190800580] [2022-11-23 14:38:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:54,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:38:54,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:38:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:54,655 INFO L87 Difference]: Start difference. First operand 3439 states and 6971 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:56,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:56,667 INFO L93 Difference]: Finished difference Result 3633 states and 7363 transitions. [2022-11-23 14:38:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:38:56,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-23 14:38:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:56,694 INFO L225 Difference]: With dead ends: 3633 [2022-11-23 14:38:56,694 INFO L226 Difference]: Without dead ends: 3633 [2022-11-23 14:38:56,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:56,695 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 96 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:56,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 117 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 14:38:56,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-11-23 14:38:56,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3633. [2022-11-23 14:38:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3590 states have (on average 2.050974930362117) internal successors, (7363), 3632 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 7363 transitions. [2022-11-23 14:38:56,774 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 7363 transitions. Word has length 27 [2022-11-23 14:38:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:56,775 INFO L495 AbstractCegarLoop]: Abstraction has 3633 states and 7363 transitions. [2022-11-23 14:38:56,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:56,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 7363 transitions. [2022-11-23 14:38:56,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:38:56,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:56,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:56,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:56,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:56,990 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:56,990 INFO L85 PathProgramCache]: Analyzing trace with hash 394972790, now seen corresponding path program 1 times [2022-11-23 14:38:56,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:56,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069290801] [2022-11-23 14:38:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:56,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:56,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:56,993 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:57,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-23 14:38:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:57,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:38:57,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:57,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:38:57,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:38:57,244 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:57,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:38:57,308 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:38:57,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:38:57,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:38:57,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:38:57,389 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:38:57,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069290801] [2022-11-23 14:38:57,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069290801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:38:57,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:38:57,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:38:57,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697795872] [2022-11-23 14:38:57,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:38:57,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:38:57,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:38:57,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:38:57,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:57,391 INFO L87 Difference]: Start difference. First operand 3633 states and 7363 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:38:59,538 INFO L93 Difference]: Finished difference Result 3795 states and 7687 transitions. [2022-11-23 14:38:59,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:38:59,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-23 14:38:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:38:59,550 INFO L225 Difference]: With dead ends: 3795 [2022-11-23 14:38:59,551 INFO L226 Difference]: Without dead ends: 3795 [2022-11-23 14:38:59,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:38:59,552 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 76 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:38:59,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 103 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 14:38:59,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-11-23 14:38:59,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3795. [2022-11-23 14:38:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3752 states have (on average 2.048773987206823) internal successors, (7687), 3794 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 7687 transitions. [2022-11-23 14:38:59,643 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 7687 transitions. Word has length 28 [2022-11-23 14:38:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:38:59,644 INFO L495 AbstractCegarLoop]: Abstraction has 3795 states and 7687 transitions. [2022-11-23 14:38:59,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:38:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 7687 transitions. [2022-11-23 14:38:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:38:59,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:38:59,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:38:59,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-23 14:38:59,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:59,861 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:38:59,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:38:59,862 INFO L85 PathProgramCache]: Analyzing trace with hash -774320138, now seen corresponding path program 1 times [2022-11-23 14:38:59,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:38:59,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560338893] [2022-11-23 14:38:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:38:59,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:38:59,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:38:59,864 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:38:59,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-23 14:39:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:39:00,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:39:00,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:00,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:00,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:39:00,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:00,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:39:00,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:39:00,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:00,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:39:00,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:39:00,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:39:00,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:39:00,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:39:01,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:39:01,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:01,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:01,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:01,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:01,266 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:01,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:39:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:01,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:01,363 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:01,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560338893] [2022-11-23 14:39:01,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560338893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:01,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:01,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:39:01,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248242740] [2022-11-23 14:39:01,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:01,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:39:01,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:01,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:39:01,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:39:01,365 INFO L87 Difference]: Start difference. First operand 3795 states and 7687 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:09,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:09,803 INFO L93 Difference]: Finished difference Result 6198 states and 12545 transitions. [2022-11-23 14:39:09,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:39:09,804 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:39:09,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:09,823 INFO L225 Difference]: With dead ends: 6198 [2022-11-23 14:39:09,823 INFO L226 Difference]: Without dead ends: 6198 [2022-11-23 14:39:09,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:39:09,825 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 510 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 2968 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:09,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 570 Invalid, 3044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-23 14:39:09,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6198 states. [2022-11-23 14:39:09,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6198 to 4355. [2022-11-23 14:39:09,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 4312 states have (on average 2.0470779220779223) internal successors, (8827), 4354 states have internal predecessors, (8827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 8827 transitions. [2022-11-23 14:39:09,952 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 8827 transitions. Word has length 31 [2022-11-23 14:39:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:09,952 INFO L495 AbstractCegarLoop]: Abstraction has 4355 states and 8827 transitions. [2022-11-23 14:39:09,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 8827 transitions. [2022-11-23 14:39:09,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:39:09,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:09,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:09,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-23 14:39:10,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:10,170 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:39:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:10,170 INFO L85 PathProgramCache]: Analyzing trace with hash 421807931, now seen corresponding path program 1 times [2022-11-23 14:39:10,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:39:10,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682703535] [2022-11-23 14:39:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:39:10,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:10,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:39:10,172 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:39:10,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-23 14:39:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:39:10,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-23 14:39:10,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:10,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:39:10,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:10,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:39:10,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:39:10,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:10,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:39:10,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:39:11,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:39:11,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:39:11,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,237 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:11,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-23 14:39:11,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,286 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:11,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:39:11,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:11,351 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:11,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:39:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:11,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:11,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:11,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682703535] [2022-11-23 14:39:11,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682703535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:11,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:11,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:39:11,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673104082] [2022-11-23 14:39:11,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:11,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:39:11,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:11,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:39:11,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:39:11,410 INFO L87 Difference]: Start difference. First operand 4355 states and 8827 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:16,999 INFO L93 Difference]: Finished difference Result 5939 states and 12021 transitions. [2022-11-23 14:39:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:39:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:39:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:17,036 INFO L225 Difference]: With dead ends: 5939 [2022-11-23 14:39:17,037 INFO L226 Difference]: Without dead ends: 5939 [2022-11-23 14:39:17,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:39:17,038 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 452 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:17,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 508 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 14:39:17,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2022-11-23 14:39:17,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 4374. [2022-11-23 14:39:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4374 states, 4331 states have (on average 2.0464096051720158) internal successors, (8863), 4373 states have internal predecessors, (8863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 8863 transitions. [2022-11-23 14:39:17,146 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 8863 transitions. Word has length 31 [2022-11-23 14:39:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:17,146 INFO L495 AbstractCegarLoop]: Abstraction has 4374 states and 8863 transitions. [2022-11-23 14:39:17,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 8863 transitions. [2022-11-23 14:39:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:39:17,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:17,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:17,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-23 14:39:17,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:17,363 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:39:17,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash -709403264, now seen corresponding path program 1 times [2022-11-23 14:39:17,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:39:17,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433474906] [2022-11-23 14:39:17,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:39:17,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:17,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:39:17,366 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:39:17,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-23 14:39:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:39:17,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:39:17,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:17,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:17,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:39:17,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:17,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:39:17,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:39:17,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:39:17,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:39:17,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:39:18,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:39:18,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:39:18,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:39:18,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:39:18,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:39:18,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:39:18,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:39:18,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:39:18,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:39:18,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:39:18,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:39:18,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:39:18,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:39:18,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:39:18,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:18,978 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:18,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:39:19,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:19,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:19,057 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:19,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433474906] [2022-11-23 14:39:19,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433474906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:19,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:19,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:39:19,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169433315] [2022-11-23 14:39:19,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:19,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:39:19,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:19,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:39:19,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:39:19,059 INFO L87 Difference]: Start difference. First operand 4374 states and 8863 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:25,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:25,474 INFO L93 Difference]: Finished difference Result 8697 states and 17659 transitions. [2022-11-23 14:39:25,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:39:25,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:39:25,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:25,493 INFO L225 Difference]: With dead ends: 8697 [2022-11-23 14:39:25,493 INFO L226 Difference]: Without dead ends: 8697 [2022-11-23 14:39:25,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:39:25,494 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 453 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 2205 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 2205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:25,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 433 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 2205 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 14:39:25,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-11-23 14:39:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 6102. [2022-11-23 14:39:25,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6102 states, 6059 states have (on average 2.0742696814655885) internal successors, (12568), 6101 states have internal predecessors, (12568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 12568 transitions. [2022-11-23 14:39:25,670 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 12568 transitions. Word has length 31 [2022-11-23 14:39:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:25,671 INFO L495 AbstractCegarLoop]: Abstraction has 6102 states and 12568 transitions. [2022-11-23 14:39:25,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 12568 transitions. [2022-11-23 14:39:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:39:25,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:25,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:25,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-11-23 14:39:25,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:25,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:39:25,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:25,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1152651440, now seen corresponding path program 2 times [2022-11-23 14:39:25,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:39:25,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529559228] [2022-11-23 14:39:25,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:39:25,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:25,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:39:25,892 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:39:25,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-23 14:39:26,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:39:26,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:39:26,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-23 14:39:26,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:26,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:39:26,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:39:26,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:39:26,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:39:26,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:39:26,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:39:26,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:39:26,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:39:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:26,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:26,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:26,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:39:26,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:26,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:39:27,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:39:27,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:27,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:39:27,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:27,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:27,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:27,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:39:27,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:27,529 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:27,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:39:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:27,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:27,593 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:27,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529559228] [2022-11-23 14:39:27,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529559228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:27,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:27,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:39:27,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514690382] [2022-11-23 14:39:27,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:27,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:39:27,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:27,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:39:27,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:39:27,595 INFO L87 Difference]: Start difference. First operand 6102 states and 12568 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:34,525 INFO L93 Difference]: Finished difference Result 9213 states and 18714 transitions. [2022-11-23 14:39:34,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:39:34,526 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:39:34,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:34,539 INFO L225 Difference]: With dead ends: 9213 [2022-11-23 14:39:34,539 INFO L226 Difference]: Without dead ends: 9213 [2022-11-23 14:39:34,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-11-23 14:39:34,540 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 529 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:34,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 436 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 14:39:34,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9213 states. [2022-11-23 14:39:34,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9213 to 6138. [2022-11-23 14:39:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6095 states have (on average 2.0741591468416734) internal successors, (12642), 6137 states have internal predecessors, (12642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 12642 transitions. [2022-11-23 14:39:34,695 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 12642 transitions. Word has length 31 [2022-11-23 14:39:34,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:34,696 INFO L495 AbstractCegarLoop]: Abstraction has 6138 states and 12642 transitions. [2022-11-23 14:39:34,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 12642 transitions. [2022-11-23 14:39:34,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:39:34,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:34,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:34,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-11-23 14:39:34,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:34,919 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:39:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash 832535924, now seen corresponding path program 3 times [2022-11-23 14:39:34,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:39:34,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346760562] [2022-11-23 14:39:34,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:39:34,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:34,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:39:34,921 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:39:34,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-23 14:39:35,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:39:35,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:39:35,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-23 14:39:35,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:35,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:39:35,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:39:35,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:39:35,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:39:35,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:39:35,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:39:35,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:39:35,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:39:35,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:39:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:39:35,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:39:35,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:39:35,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:39:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:39:35,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:39:35,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:35,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:39:36,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:36,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:36,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:36,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:39:36,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:36,274 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:36,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:39:36,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:36,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:36,344 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:36,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346760562] [2022-11-23 14:39:36,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346760562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:36,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:36,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:39:36,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486805389] [2022-11-23 14:39:36,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:36,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:39:36,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:36,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:39:36,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:39:36,346 INFO L87 Difference]: Start difference. First operand 6138 states and 12642 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:43,516 INFO L93 Difference]: Finished difference Result 9350 states and 18988 transitions. [2022-11-23 14:39:43,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 14:39:43,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:39:43,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:43,531 INFO L225 Difference]: With dead ends: 9350 [2022-11-23 14:39:43,531 INFO L226 Difference]: Without dead ends: 9350 [2022-11-23 14:39:43,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=233, Invalid=637, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:39:43,532 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 497 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 2719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:43,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 438 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 2719 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 14:39:43,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2022-11-23 14:39:43,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 6179. [2022-11-23 14:39:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6179 states, 6136 states have (on average 2.074315514993481) internal successors, (12728), 6178 states have internal predecessors, (12728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:43,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6179 states to 6179 states and 12728 transitions. [2022-11-23 14:39:43,702 INFO L78 Accepts]: Start accepts. Automaton has 6179 states and 12728 transitions. Word has length 31 [2022-11-23 14:39:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:43,702 INFO L495 AbstractCegarLoop]: Abstraction has 6179 states and 12728 transitions. [2022-11-23 14:39:43,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6179 states and 12728 transitions. [2022-11-23 14:39:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:39:43,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:43,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:43,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-23 14:39:43,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:43,921 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:39:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1709615984, now seen corresponding path program 4 times [2022-11-23 14:39:43,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:39:43,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218388680] [2022-11-23 14:39:43,922 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:39:43,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:43,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:39:43,923 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:39:43,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-23 14:39:44,097 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:39:44,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:39:44,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-23 14:39:44,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:44,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:39:44,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:39:44,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:39:44,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:39:44,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:39:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-23 14:39:44,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:39:44,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:39:44,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:39:44,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:39:44,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:39:44,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:39:44,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:39:44,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:39:44,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:39:44,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:39:44,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:44,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:44,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:44,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:44,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:39:45,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:45,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:45,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:45,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:45,052 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:45,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:39:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:45,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:45,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:45,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218388680] [2022-11-23 14:39:45,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218388680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:45,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:45,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:39:45,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125643760] [2022-11-23 14:39:45,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:45,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:39:45,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:39:45,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:39:45,112 INFO L87 Difference]: Start difference. First operand 6179 states and 12728 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:51,611 INFO L93 Difference]: Finished difference Result 9492 states and 19272 transitions. [2022-11-23 14:39:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 14:39:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:39:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:51,638 INFO L225 Difference]: With dead ends: 9492 [2022-11-23 14:39:51,638 INFO L226 Difference]: Without dead ends: 9492 [2022-11-23 14:39:51,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2022-11-23 14:39:51,639 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 585 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:51,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 436 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 14:39:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9492 states. [2022-11-23 14:39:51,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9492 to 6220. [2022-11-23 14:39:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6177 states have (on average 2.074469807349846) internal successors, (12814), 6219 states have internal predecessors, (12814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:51,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 12814 transitions. [2022-11-23 14:39:51,787 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 12814 transitions. Word has length 31 [2022-11-23 14:39:51,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:51,788 INFO L495 AbstractCegarLoop]: Abstraction has 6220 states and 12814 transitions. [2022-11-23 14:39:51,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 12814 transitions. [2022-11-23 14:39:51,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:39:51,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:51,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:51,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-23 14:39:52,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:52,006 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:39:52,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:52,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1960830858, now seen corresponding path program 5 times [2022-11-23 14:39:52,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:39:52,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413951036] [2022-11-23 14:39:52,007 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:39:52,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:39:52,009 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:39:52,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-23 14:39:52,197 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:39:52,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:39:52,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 14:39:52,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:52,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:39:52,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:39:52,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:39:52,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:39:52,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:52,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:52,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:39:52,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:39:52,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:52,967 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:52,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:39:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:53,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:53,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:53,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413951036] [2022-11-23 14:39:53,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413951036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:53,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:53,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:39:53,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723095654] [2022-11-23 14:39:53,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:53,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:39:53,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:53,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:39:53,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:39:53,026 INFO L87 Difference]: Start difference. First operand 6220 states and 12814 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:39:57,129 INFO L93 Difference]: Finished difference Result 13659 states and 27918 transitions. [2022-11-23 14:39:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:39:57,130 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:39:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:39:57,148 INFO L225 Difference]: With dead ends: 13659 [2022-11-23 14:39:57,148 INFO L226 Difference]: Without dead ends: 13659 [2022-11-23 14:39:57,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:39:57,149 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 772 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:39:57,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 436 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 14:39:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13659 states. [2022-11-23 14:39:57,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13659 to 7523. [2022-11-23 14:39:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7523 states, 7480 states have (on average 2.129679144385027) internal successors, (15930), 7522 states have internal predecessors, (15930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:57,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7523 states to 7523 states and 15930 transitions. [2022-11-23 14:39:57,328 INFO L78 Accepts]: Start accepts. Automaton has 7523 states and 15930 transitions. Word has length 31 [2022-11-23 14:39:57,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:39:57,329 INFO L495 AbstractCegarLoop]: Abstraction has 7523 states and 15930 transitions. [2022-11-23 14:39:57,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:39:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 7523 states and 15930 transitions. [2022-11-23 14:39:57,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:39:57,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:39:57,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:39:57,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-23 14:39:57,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:57,546 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:39:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:39:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash 289274293, now seen corresponding path program 1 times [2022-11-23 14:39:57,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:39:57,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937140116] [2022-11-23 14:39:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:39:57,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:39:57,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:39:57,549 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:39:57,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-23 14:39:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:39:57,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 14:39:57,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:39:58,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:39:58,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:39:58,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:39:58,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:39:58,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:39:58,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:39:58,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-23 14:39:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:39:58,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:39:58,405 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:39:58,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937140116] [2022-11-23 14:39:58,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937140116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:39:58,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:39:58,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:39:58,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553671742] [2022-11-23 14:39:58,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:39:58,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:39:58,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:39:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:39:58,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:39:58,407 INFO L87 Difference]: Start difference. First operand 7523 states and 15930 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:02,292 INFO L93 Difference]: Finished difference Result 11321 states and 22940 transitions. [2022-11-23 14:40:02,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:40:02,293 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:02,309 INFO L225 Difference]: With dead ends: 11321 [2022-11-23 14:40:02,309 INFO L226 Difference]: Without dead ends: 11321 [2022-11-23 14:40:02,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:40:02,310 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 656 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:02,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 431 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 14:40:02,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11321 states. [2022-11-23 14:40:02,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11321 to 7796. [2022-11-23 14:40:02,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:02,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-23 14:40:02,480 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-23 14:40:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:02,480 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-23 14:40:02,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:02,480 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-23 14:40:02,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:02,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:02,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:02,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-23 14:40:02,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:02,699 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:02,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:02,700 INFO L85 PathProgramCache]: Analyzing trace with hash 509759285, now seen corresponding path program 2 times [2022-11-23 14:40:02,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:02,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39672122] [2022-11-23 14:40:02,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:40:02,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:02,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:02,701 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:02,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-23 14:40:02,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:40:02,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:40:02,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 14:40:02,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:03,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:40:03,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:40:03,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:40:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:40:03,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:03,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:03,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-23 14:40:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:03,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:03,562 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:03,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39672122] [2022-11-23 14:40:03,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39672122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:03,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:03,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:40:03,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718561229] [2022-11-23 14:40:03,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:03,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:40:03,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:03,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:40:03,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:40:03,564 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:07,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:07,986 INFO L93 Difference]: Finished difference Result 9691 states and 19956 transitions. [2022-11-23 14:40:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:40:07,987 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:07,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:07,998 INFO L225 Difference]: With dead ends: 9691 [2022-11-23 14:40:07,998 INFO L226 Difference]: Without dead ends: 9691 [2022-11-23 14:40:07,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:40:07,999 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 544 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:08,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 458 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-23 14:40:08,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9691 states. [2022-11-23 14:40:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9691 to 7796. [2022-11-23 14:40:08,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-23 14:40:08,118 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-23 14:40:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:08,118 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-23 14:40:08,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-23 14:40:08,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:08,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:08,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:08,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-23 14:40:08,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:08,335 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:08,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:08,335 INFO L85 PathProgramCache]: Analyzing trace with hash 631306565, now seen corresponding path program 3 times [2022-11-23 14:40:08,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:08,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967223036] [2022-11-23 14:40:08,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:40:08,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:08,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:08,337 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:08,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-23 14:40:08,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:40:08,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:40:08,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 14:40:08,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:08,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:40:08,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:08,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:40:08,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:08,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:40:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:08,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:08,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:08,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:40:09,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:09,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:09,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:09,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:09,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:09,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:09,046 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:09,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-23 14:40:09,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:09,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:09,102 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:09,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967223036] [2022-11-23 14:40:09,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967223036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:09,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:09,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:40:09,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414887755] [2022-11-23 14:40:09,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:09,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:40:09,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:09,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:40:09,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:40:09,104 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:13,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:13,503 INFO L93 Difference]: Finished difference Result 9707 states and 19988 transitions. [2022-11-23 14:40:13,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:40:13,504 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:13,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:13,518 INFO L225 Difference]: With dead ends: 9707 [2022-11-23 14:40:13,518 INFO L226 Difference]: Without dead ends: 9707 [2022-11-23 14:40:13,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:40:13,519 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 631 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:13,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 462 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-23 14:40:13,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2022-11-23 14:40:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 7796. [2022-11-23 14:40:13,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-23 14:40:13,654 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-23 14:40:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:13,654 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-23 14:40:13,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-23 14:40:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:13,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:13,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:13,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-23 14:40:13,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:13,857 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:13,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 132010579, now seen corresponding path program 4 times [2022-11-23 14:40:13,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:13,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319367439] [2022-11-23 14:40:13,859 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:40:13,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:13,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:13,860 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:13,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-23 14:40:14,050 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:40:14,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:40:14,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 14:40:14,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:14,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:40:14,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:40:14,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:40:14,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:40:14,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:14,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:14,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-23 14:40:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:14,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:14,632 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:14,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319367439] [2022-11-23 14:40:14,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319367439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:14,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:14,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:40:14,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331838128] [2022-11-23 14:40:14,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:14,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:40:14,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:14,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:40:14,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:40:14,634 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:19,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:19,242 INFO L93 Difference]: Finished difference Result 9739 states and 20052 transitions. [2022-11-23 14:40:19,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:40:19,243 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:19,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:19,258 INFO L225 Difference]: With dead ends: 9739 [2022-11-23 14:40:19,258 INFO L226 Difference]: Without dead ends: 9739 [2022-11-23 14:40:19,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:40:19,259 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 589 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:19,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 446 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 14:40:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9739 states. [2022-11-23 14:40:19,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9739 to 7796. [2022-11-23 14:40:19,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7753 states have (on average 2.1407197213981686) internal successors, (16597), 7795 states have internal predecessors, (16597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 16597 transitions. [2022-11-23 14:40:19,389 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 16597 transitions. Word has length 31 [2022-11-23 14:40:19,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:19,390 INFO L495 AbstractCegarLoop]: Abstraction has 7796 states and 16597 transitions. [2022-11-23 14:40:19,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 16597 transitions. [2022-11-23 14:40:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:19,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:19,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:19,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-11-23 14:40:19,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:19,607 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:19,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1602388569, now seen corresponding path program 5 times [2022-11-23 14:40:19,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:19,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670781383] [2022-11-23 14:40:19,608 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:40:19,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:19,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:19,610 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:19,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-23 14:40:19,777 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:40:19,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:40:19,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 14:40:19,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:19,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:40:20,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:40:20,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:40:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:40:20,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:20,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:20,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-23 14:40:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:20,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:20,403 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:20,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670781383] [2022-11-23 14:40:20,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670781383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:20,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:20,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:40:20,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108572645] [2022-11-23 14:40:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:20,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:40:20,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:40:20,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:40:20,404 INFO L87 Difference]: Start difference. First operand 7796 states and 16597 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:23,899 INFO L93 Difference]: Finished difference Result 9755 states and 20084 transitions. [2022-11-23 14:40:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:40:23,900 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:23,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:23,911 INFO L225 Difference]: With dead ends: 9755 [2022-11-23 14:40:23,912 INFO L226 Difference]: Without dead ends: 9755 [2022-11-23 14:40:23,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:40:23,912 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 569 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:23,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 432 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-23 14:40:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2022-11-23 14:40:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 7708. [2022-11-23 14:40:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7708 states, 7665 states have (on average 2.130593607305936) internal successors, (16331), 7707 states have internal predecessors, (16331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:24,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 16331 transitions. [2022-11-23 14:40:24,024 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 16331 transitions. Word has length 31 [2022-11-23 14:40:24,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:24,024 INFO L495 AbstractCegarLoop]: Abstraction has 7708 states and 16331 transitions. [2022-11-23 14:40:24,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 16331 transitions. [2022-11-23 14:40:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:24,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:24,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:24,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-23 14:40:24,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:24,242 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:24,243 INFO L85 PathProgramCache]: Analyzing trace with hash -917737190, now seen corresponding path program 2 times [2022-11-23 14:40:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:24,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229142824] [2022-11-23 14:40:24,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:40:24,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:24,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:24,244 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:24,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-23 14:40:24,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:40:24,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:40:24,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-23 14:40:24,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:24,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:24,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:40:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:24,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:40:24,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:40:24,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:24,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:40:25,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:40:25,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:40:25,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:40:25,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:40:25,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:25,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:25,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:25,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:25,653 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:25,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:40:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:25,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:25,772 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:25,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229142824] [2022-11-23 14:40:25,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229142824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:25,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:25,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:40:25,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346065961] [2022-11-23 14:40:25,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:25,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:40:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:40:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:40:25,774 INFO L87 Difference]: Start difference. First operand 7708 states and 16331 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:35,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:35,657 INFO L93 Difference]: Finished difference Result 12367 states and 25966 transitions. [2022-11-23 14:40:35,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:40:35,658 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:35,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:35,694 INFO L225 Difference]: With dead ends: 12367 [2022-11-23 14:40:35,694 INFO L226 Difference]: Without dead ends: 12367 [2022-11-23 14:40:35,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=222, Invalid=648, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:40:35,695 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 660 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:35,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 642 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 14:40:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-11-23 14:40:35,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 10037. [2022-11-23 14:40:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 9994 states have (on average 2.1346808084850912) internal successors, (21334), 10036 states have internal predecessors, (21334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:35,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 21334 transitions. [2022-11-23 14:40:35,843 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 21334 transitions. Word has length 31 [2022-11-23 14:40:35,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:35,843 INFO L495 AbstractCegarLoop]: Abstraction has 10037 states and 21334 transitions. [2022-11-23 14:40:35,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:35,844 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 21334 transitions. [2022-11-23 14:40:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:35,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:35,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:35,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-23 14:40:36,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:36,062 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:36,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:36,063 INFO L85 PathProgramCache]: Analyzing trace with hash 278390879, now seen corresponding path program 2 times [2022-11-23 14:40:36,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:36,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531894299] [2022-11-23 14:40:36,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:40:36,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:36,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:36,064 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:36,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-23 14:40:36,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:40:36,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:40:36,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-23 14:40:36,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:36,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:36,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:40:36,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:36,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:40:36,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:40:36,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:36,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:40:36,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:40:37,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:40:37,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,142 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:37,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:40:37,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,197 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:37,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:40:37,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:37,264 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:37,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:40:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:37,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:37,326 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:37,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531894299] [2022-11-23 14:40:37,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531894299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:37,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:37,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:40:37,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129594587] [2022-11-23 14:40:37,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:37,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:40:37,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:37,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:40:37,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:40:37,327 INFO L87 Difference]: Start difference. First operand 10037 states and 21334 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:43,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:43,980 INFO L93 Difference]: Finished difference Result 11965 states and 25039 transitions. [2022-11-23 14:40:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:40:43,982 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:43,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:43,998 INFO L225 Difference]: With dead ends: 11965 [2022-11-23 14:40:43,999 INFO L226 Difference]: Without dead ends: 11965 [2022-11-23 14:40:43,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:40:44,000 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 718 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:44,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 506 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 14:40:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2022-11-23 14:40:44,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 9597. [2022-11-23 14:40:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9554 states have (on average 2.126020514967553) internal successors, (20312), 9596 states have internal predecessors, (20312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:44,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 20312 transitions. [2022-11-23 14:40:44,143 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 20312 transitions. Word has length 31 [2022-11-23 14:40:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:44,144 INFO L495 AbstractCegarLoop]: Abstraction has 9597 states and 20312 transitions. [2022-11-23 14:40:44,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:44,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 20312 transitions. [2022-11-23 14:40:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:44,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:44,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:44,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-23 14:40:44,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:44,350 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash -852820316, now seen corresponding path program 6 times [2022-11-23 14:40:44,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:44,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982185699] [2022-11-23 14:40:44,351 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:40:44,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:44,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:44,352 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:44,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-23 14:40:44,574 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:40:44,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:40:44,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:40:44,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:44,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:44,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:40:44,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:44,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:40:44,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:40:44,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:40:44,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:40:44,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:40:44,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:40:45,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:40:45,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:40:45,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:40:45,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:40:45,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:40:45,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:40:45,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:40:45,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:40:45,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:40:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:40:45,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:40:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:40:45,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:40:45,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:45,874 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:45,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:40:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:45,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:45,941 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:45,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982185699] [2022-11-23 14:40:45,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982185699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:45,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:45,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:40:45,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946877999] [2022-11-23 14:40:45,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:45,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:40:45,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:45,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:40:45,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:40:45,942 INFO L87 Difference]: Start difference. First operand 9597 states and 20312 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:51,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:51,828 INFO L93 Difference]: Finished difference Result 13235 states and 27757 transitions. [2022-11-23 14:40:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:40:51,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:51,848 INFO L225 Difference]: With dead ends: 13235 [2022-11-23 14:40:51,849 INFO L226 Difference]: Without dead ends: 13235 [2022-11-23 14:40:51,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-23 14:40:51,849 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 410 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:51,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 385 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-23 14:40:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13235 states. [2022-11-23 14:40:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13235 to 10510. [2022-11-23 14:40:52,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10510 states, 10467 states have (on average 2.122289099073278) internal successors, (22214), 10509 states have internal predecessors, (22214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:52,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10510 states to 10510 states and 22214 transitions. [2022-11-23 14:40:52,146 INFO L78 Accepts]: Start accepts. Automaton has 10510 states and 22214 transitions. Word has length 31 [2022-11-23 14:40:52,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:52,146 INFO L495 AbstractCegarLoop]: Abstraction has 10510 states and 22214 transitions. [2022-11-23 14:40:52,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:52,147 INFO L276 IsEmpty]: Start isEmpty. Operand 10510 states and 22214 transitions. [2022-11-23 14:40:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:52,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:52,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:52,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-23 14:40:52,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:52,367 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:40:52,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:40:52,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1009234388, now seen corresponding path program 7 times [2022-11-23 14:40:52,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:40:52,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116110159] [2022-11-23 14:40:52,369 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:40:52,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:40:52,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:40:52,370 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:40:52,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-23 14:40:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:40:52,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:40:52,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:40:52,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:52,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:40:52,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:52,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:40:52,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:40:52,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:40:52,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:40:52,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:40:52,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:40:52,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:52,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:52,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:52,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:40:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:40:53,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:40:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:40:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:40:53,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:40:53,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:40:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:40:53,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:40:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:40:53,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:40:53,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:40:53,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:40:53,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:40:53,733 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:40:53,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:40:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:40:53,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:40:53,787 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:40:53,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116110159] [2022-11-23 14:40:53,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116110159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:40:53,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:40:53,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:40:53,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061785264] [2022-11-23 14:40:53,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:40:53,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:40:53,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:40:53,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:40:53,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:40:53,789 INFO L87 Difference]: Start difference. First operand 10510 states and 22214 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:59,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:40:59,642 INFO L93 Difference]: Finished difference Result 13765 states and 28847 transitions. [2022-11-23 14:40:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:40:59,642 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:40:59,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:40:59,664 INFO L225 Difference]: With dead ends: 13765 [2022-11-23 14:40:59,664 INFO L226 Difference]: Without dead ends: 13765 [2022-11-23 14:40:59,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:40:59,665 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 471 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:40:59,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 386 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-23 14:40:59,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13765 states. [2022-11-23 14:40:59,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13765 to 10553. [2022-11-23 14:40:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10553 states, 10510 states have (on average 2.12197906755471) internal successors, (22302), 10552 states have internal predecessors, (22302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10553 states to 10553 states and 22302 transitions. [2022-11-23 14:40:59,850 INFO L78 Accepts]: Start accepts. Automaton has 10553 states and 22302 transitions. Word has length 31 [2022-11-23 14:40:59,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:40:59,851 INFO L495 AbstractCegarLoop]: Abstraction has 10553 states and 22302 transitions. [2022-11-23 14:40:59,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:40:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10553 states and 22302 transitions. [2022-11-23 14:40:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:40:59,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:40:59,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:40:59,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-23 14:41:00,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:00,054 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:00,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:00,054 INFO L85 PathProgramCache]: Analyzing trace with hash 689118872, now seen corresponding path program 8 times [2022-11-23 14:41:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:00,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146749906] [2022-11-23 14:41:00,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:41:00,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:00,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:00,056 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:00,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-23 14:41:00,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:41:00,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:00,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-23 14:41:00,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:00,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:41:00,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:41:00,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:41:00,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:41:00,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:41:00,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:41:00,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:41:00,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:41:00,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:41:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:41:00,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:41:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:41:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:41:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:41:00,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:41:00,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:41:00,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:00,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:01,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:01,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:01,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:41:01,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:01,197 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:01,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:41:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:01,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:01,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:01,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146749906] [2022-11-23 14:41:01,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146749906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:01,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:01,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:41:01,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491222990] [2022-11-23 14:41:01,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:01,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:41:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:01,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:41:01,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:41:01,262 INFO L87 Difference]: Start difference. First operand 10553 states and 22302 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:07,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:07,664 INFO L93 Difference]: Finished difference Result 13916 states and 29149 transitions. [2022-11-23 14:41:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 14:41:07,664 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:41:07,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:07,685 INFO L225 Difference]: With dead ends: 13916 [2022-11-23 14:41:07,686 INFO L226 Difference]: Without dead ends: 13916 [2022-11-23 14:41:07,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=213, Invalid=543, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:41:07,687 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 433 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:07,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 396 Invalid, 2671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 14:41:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13916 states. [2022-11-23 14:41:07,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13916 to 10601. [2022-11-23 14:41:07,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10601 states, 10558 states have (on average 2.121803371850729) internal successors, (22402), 10600 states have internal predecessors, (22402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10601 states to 10601 states and 22402 transitions. [2022-11-23 14:41:07,858 INFO L78 Accepts]: Start accepts. Automaton has 10601 states and 22402 transitions. Word has length 31 [2022-11-23 14:41:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:07,858 INFO L495 AbstractCegarLoop]: Abstraction has 10601 states and 22402 transitions. [2022-11-23 14:41:07,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:07,859 INFO L276 IsEmpty]: Start isEmpty. Operand 10601 states and 22402 transitions. [2022-11-23 14:41:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:41:07,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:07,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:07,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-23 14:41:08,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:08,062 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:08,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:08,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1853033036, now seen corresponding path program 9 times [2022-11-23 14:41:08,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:08,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393820067] [2022-11-23 14:41:08,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:41:08,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:08,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:08,064 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:08,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-23 14:41:08,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:41:08,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:08,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:41:08,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:08,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:41:08,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:41:08,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:41:08,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:41:08,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:41:08,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-23 14:41:08,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:41:08,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:41:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:41:08,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:41:08,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:41:08,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:41:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:08,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:41:08,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:41:08,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:41:09,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:41:09,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:09,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:09,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:09,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:41:09,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:09,283 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:09,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:41:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:09,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:09,341 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:09,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393820067] [2022-11-23 14:41:09,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393820067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:09,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:09,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:41:09,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609700554] [2022-11-23 14:41:09,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:09,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:41:09,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:41:09,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:41:09,342 INFO L87 Difference]: Start difference. First operand 10601 states and 22402 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:16,450 INFO L93 Difference]: Finished difference Result 14072 states and 29461 transitions. [2022-11-23 14:41:16,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 14:41:16,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:41:16,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:16,471 INFO L225 Difference]: With dead ends: 14072 [2022-11-23 14:41:16,472 INFO L226 Difference]: Without dead ends: 14072 [2022-11-23 14:41:16,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=247, Invalid=623, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:41:16,472 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 509 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 2732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:16,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 400 Invalid, 2732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-23 14:41:16,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14072 states. [2022-11-23 14:41:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14072 to 10649. [2022-11-23 14:41:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10649 states, 10606 states have (on average 2.1216292664529512) internal successors, (22502), 10648 states have internal predecessors, (22502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10649 states to 10649 states and 22502 transitions. [2022-11-23 14:41:16,714 INFO L78 Accepts]: Start accepts. Automaton has 10649 states and 22502 transitions. Word has length 31 [2022-11-23 14:41:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:16,715 INFO L495 AbstractCegarLoop]: Abstraction has 10649 states and 22502 transitions. [2022-11-23 14:41:16,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 10649 states and 22502 transitions. [2022-11-23 14:41:16,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:41:16,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:16,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:16,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-23 14:41:16,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:16,920 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:16,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:16,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1817413806, now seen corresponding path program 10 times [2022-11-23 14:41:16,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:16,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889936578] [2022-11-23 14:41:16,921 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:41:16,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:16,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:16,922 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:16,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-23 14:41:17,130 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:41:17,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:17,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 14:41:17,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:17,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:41:17,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:41:17,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:41:17,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:41:17,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:17,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:17,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:17,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:41:17,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:17,778 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:17,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:41:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:17,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:17,831 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:17,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889936578] [2022-11-23 14:41:17,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889936578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:17,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:17,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:41:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218311420] [2022-11-23 14:41:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:17,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:41:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:41:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:41:17,832 INFO L87 Difference]: Start difference. First operand 10649 states and 22502 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:23,134 INFO L93 Difference]: Finished difference Result 21808 states and 44673 transitions. [2022-11-23 14:41:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:41:23,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:41:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:23,169 INFO L225 Difference]: With dead ends: 21808 [2022-11-23 14:41:23,169 INFO L226 Difference]: Without dead ends: 21808 [2022-11-23 14:41:23,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:41:23,170 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 699 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 2197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:23,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 452 Invalid, 2197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-23 14:41:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21808 states. [2022-11-23 14:41:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21808 to 11027. [2022-11-23 14:41:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11027 states, 10984 states have (on average 2.13401310997815) internal successors, (23440), 11026 states have internal predecessors, (23440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11027 states to 11027 states and 23440 transitions. [2022-11-23 14:41:23,431 INFO L78 Accepts]: Start accepts. Automaton has 11027 states and 23440 transitions. Word has length 31 [2022-11-23 14:41:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:23,431 INFO L495 AbstractCegarLoop]: Abstraction has 11027 states and 23440 transitions. [2022-11-23 14:41:23,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 11027 states and 23440 transitions. [2022-11-23 14:41:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:41:23,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:23,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:23,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-23 14:41:23,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:23,635 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:23,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:23,635 INFO L85 PathProgramCache]: Analyzing trace with hash 145857241, now seen corresponding path program 6 times [2022-11-23 14:41:23,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:23,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405395713] [2022-11-23 14:41:23,636 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:41:23,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:23,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:23,637 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:23,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-23 14:41:23,834 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:41:23,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:23,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 14:41:23,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:24,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:41:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:41:24,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:41:24,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:41:24,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:24,330 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:24,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-23 14:41:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:24,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:24,385 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:24,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405395713] [2022-11-23 14:41:24,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405395713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:24,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:24,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:41:24,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878870228] [2022-11-23 14:41:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:24,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:41:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:24,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:41:24,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:41:24,387 INFO L87 Difference]: Start difference. First operand 11027 states and 23440 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:28,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:28,640 INFO L93 Difference]: Finished difference Result 18385 states and 37687 transitions. [2022-11-23 14:41:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:41:28,641 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:41:28,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:28,666 INFO L225 Difference]: With dead ends: 18385 [2022-11-23 14:41:28,666 INFO L226 Difference]: Without dead ends: 18385 [2022-11-23 14:41:28,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:41:28,666 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 682 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:28,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 434 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-23 14:41:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18385 states. [2022-11-23 14:41:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18385 to 9235. [2022-11-23 14:41:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9235 states, 9192 states have (on average 2.130330722367276) internal successors, (19582), 9234 states have internal predecessors, (19582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9235 states to 9235 states and 19582 transitions. [2022-11-23 14:41:28,850 INFO L78 Accepts]: Start accepts. Automaton has 9235 states and 19582 transitions. Word has length 31 [2022-11-23 14:41:28,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:28,851 INFO L495 AbstractCegarLoop]: Abstraction has 9235 states and 19582 transitions. [2022-11-23 14:41:28,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 9235 states and 19582 transitions. [2022-11-23 14:41:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:41:28,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:28,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:28,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-11-23 14:41:29,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:29,055 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:29,056 INFO L85 PathProgramCache]: Analyzing trace with hash 966810952, now seen corresponding path program 3 times [2022-11-23 14:41:29,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:29,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466981369] [2022-11-23 14:41:29,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:41:29,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:29,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:29,057 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:29,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-23 14:41:29,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:41:29,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:29,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:41:29,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:29,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:29,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:41:29,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:29,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:41:29,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:41:29,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:41:29,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:41:29,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:41:30,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:41:30,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:41:30,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:41:30,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:30,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:30,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:30,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:30,313 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:30,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:41:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:30,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:30,406 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:30,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466981369] [2022-11-23 14:41:30,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466981369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:30,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:30,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:41:30,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250507633] [2022-11-23 14:41:30,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:30,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:41:30,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:30,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:41:30,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:41:30,408 INFO L87 Difference]: Start difference. First operand 9235 states and 19582 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:40,155 INFO L93 Difference]: Finished difference Result 12220 states and 25672 transitions. [2022-11-23 14:41:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 14:41:40,156 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:41:40,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:40,172 INFO L225 Difference]: With dead ends: 12220 [2022-11-23 14:41:40,173 INFO L226 Difference]: Without dead ends: 12220 [2022-11-23 14:41:40,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2022-11-23 14:41:40,173 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 544 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 3949 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:40,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 660 Invalid, 4025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3949 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 14:41:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12220 states. [2022-11-23 14:41:40,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12220 to 9737. [2022-11-23 14:41:40,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9737 states, 9694 states have (on average 2.124303693005983) internal successors, (20593), 9736 states have internal predecessors, (20593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 20593 transitions. [2022-11-23 14:41:40,312 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 20593 transitions. Word has length 31 [2022-11-23 14:41:40,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:40,312 INFO L495 AbstractCegarLoop]: Abstraction has 9737 states and 20593 transitions. [2022-11-23 14:41:40,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 20593 transitions. [2022-11-23 14:41:40,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:41:40,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:40,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:40,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-23 14:41:40,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:40,516 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:40,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2132028275, now seen corresponding path program 3 times [2022-11-23 14:41:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:40,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466981307] [2022-11-23 14:41:40,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:41:40,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:40,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:40,518 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:40,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-23 14:41:40,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:41:40,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:40,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-23 14:41:40,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:40,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:40,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:41:40,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:40,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:41:40,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:41:41,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:41:41,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:41:41,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:41:41,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:41:41,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,658 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:41,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-23 14:41:41,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,708 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:41,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:41:41,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:41,768 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:41,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:41:41,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:41,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:41,844 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:41,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466981307] [2022-11-23 14:41:41,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466981307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:41,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:41,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:41:41,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636518576] [2022-11-23 14:41:41,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:41,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:41:41,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:41,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:41:41,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:41:41,845 INFO L87 Difference]: Start difference. First operand 9737 states and 20593 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:48,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:48,623 INFO L93 Difference]: Finished difference Result 12150 states and 25488 transitions. [2022-11-23 14:41:48,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 14:41:48,624 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:41:48,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:48,641 INFO L225 Difference]: With dead ends: 12150 [2022-11-23 14:41:48,641 INFO L226 Difference]: Without dead ends: 12150 [2022-11-23 14:41:48,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=313, Invalid=877, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 14:41:48,642 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 660 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:48,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 509 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 14:41:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12150 states. [2022-11-23 14:41:48,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12150 to 9413. [2022-11-23 14:41:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9413 states, 9370 states have (on average 2.1281750266808963) internal successors, (19941), 9412 states have internal predecessors, (19941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9413 states to 9413 states and 19941 transitions. [2022-11-23 14:41:48,836 INFO L78 Accepts]: Start accepts. Automaton has 9413 states and 19941 transitions. Word has length 31 [2022-11-23 14:41:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:48,837 INFO L495 AbstractCegarLoop]: Abstraction has 9413 states and 19941 transitions. [2022-11-23 14:41:48,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 9413 states and 19941 transitions. [2022-11-23 14:41:48,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:41:48,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:48,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:48,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-23 14:41:49,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:49,040 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:49,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:49,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1031727826, now seen corresponding path program 11 times [2022-11-23 14:41:49,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:49,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503670996] [2022-11-23 14:41:49,041 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:41:49,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:49,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:49,042 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:49,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-23 14:41:49,283 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:41:49,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:49,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:41:49,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:49,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:41:49,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:41:49,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:41:49,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:41:49,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:41:49,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:41:49,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:41:49,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:41:49,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:41:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:41:49,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:41:49,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:49,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:41:50,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:41:50,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:41:50,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:41:50,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:41:50,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:41:50,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:41:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:41:50,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:41:50,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:50,489 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:50,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:41:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:50,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:50,550 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:50,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503670996] [2022-11-23 14:41:50,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503670996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:50,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:50,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:41:50,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49973728] [2022-11-23 14:41:50,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:50,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:41:50,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:50,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:41:50,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:41:50,551 INFO L87 Difference]: Start difference. First operand 9413 states and 19941 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:56,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:56,372 INFO L93 Difference]: Finished difference Result 12366 states and 25977 transitions. [2022-11-23 14:41:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 14:41:56,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:41:56,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:56,393 INFO L225 Difference]: With dead ends: 12366 [2022-11-23 14:41:56,394 INFO L226 Difference]: Without dead ends: 12366 [2022-11-23 14:41:56,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2022-11-23 14:41:56,394 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 317 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:56,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 346 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-23 14:41:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12366 states. [2022-11-23 14:41:56,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12366 to 9459. [2022-11-23 14:41:56,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9459 states, 9416 states have (on average 2.1276550552251488) internal successors, (20034), 9458 states have internal predecessors, (20034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9459 states to 9459 states and 20034 transitions. [2022-11-23 14:41:56,577 INFO L78 Accepts]: Start accepts. Automaton has 9459 states and 20034 transitions. Word has length 31 [2022-11-23 14:41:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:56,577 INFO L495 AbstractCegarLoop]: Abstraction has 9459 states and 20034 transitions. [2022-11-23 14:41:56,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:41:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 9459 states and 20034 transitions. [2022-11-23 14:41:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:41:56,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:56,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:56,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-23 14:41:56,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:56,781 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:41:56,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:56,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1401184766, now seen corresponding path program 12 times [2022-11-23 14:41:56,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:41:56,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92207276] [2022-11-23 14:41:56,782 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:41:56,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:41:56,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:41:56,783 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:41:56,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-23 14:41:57,024 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:41:57,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:41:57,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-23 14:41:57,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:57,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:41:57,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:41:57,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:41:57,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:41:57,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:41:57,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:41:57,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:41:57,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:41:57,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:57,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:57,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:57,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:41:57,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:41:57,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:41:57,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:57,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:41:57,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:57,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:57,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:41:57,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:41:58,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:58,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:58,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:58,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:41:58,041 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:41:58,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:41:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:41:58,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:41:58,098 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:41:58,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92207276] [2022-11-23 14:41:58,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92207276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:58,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:58,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:41:58,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475928863] [2022-11-23 14:41:58,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:58,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:41:58,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:41:58,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:41:58,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:41:58,100 INFO L87 Difference]: Start difference. First operand 9459 states and 20034 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:04,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:04,236 INFO L93 Difference]: Finished difference Result 12425 states and 26096 transitions. [2022-11-23 14:42:04,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:42:04,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:42:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:04,256 INFO L225 Difference]: With dead ends: 12425 [2022-11-23 14:42:04,256 INFO L226 Difference]: Without dead ends: 12425 [2022-11-23 14:42:04,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=188, Invalid=462, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:42:04,257 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 363 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:04,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 355 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 14:42:04,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2022-11-23 14:42:04,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 9472. [2022-11-23 14:42:04,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9472 states, 9429 states have (on average 2.127585109767738) internal successors, (20061), 9471 states have internal predecessors, (20061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9472 states to 9472 states and 20061 transitions. [2022-11-23 14:42:04,385 INFO L78 Accepts]: Start accepts. Automaton has 9472 states and 20061 transitions. Word has length 31 [2022-11-23 14:42:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:04,386 INFO L495 AbstractCegarLoop]: Abstraction has 9472 states and 20061 transitions. [2022-11-23 14:42:04,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:04,386 INFO L276 IsEmpty]: Start isEmpty. Operand 9472 states and 20061 transitions. [2022-11-23 14:42:04,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:42:04,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:04,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:04,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-23 14:42:04,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:04,590 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:42:04,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1721300282, now seen corresponding path program 13 times [2022-11-23 14:42:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:42:04,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175038974] [2022-11-23 14:42:04,591 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:42:04,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:04,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:42:04,592 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:42:04,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-23 14:42:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:42:04,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:42:04,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:42:04,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:04,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:42:04,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:04,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:42:04,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:42:05,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:42:05,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:42:05,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:42:05,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:42:05,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:05,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:05,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:05,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:42:05,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:42:05,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:42:05,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:05,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:42:05,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:42:05,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:05,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:05,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:05,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:42:05,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:05,811 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:42:05,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:42:05,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:42:05,867 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:42:05,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175038974] [2022-11-23 14:42:05,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175038974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:05,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:05,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:42:05,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627351776] [2022-11-23 14:42:05,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:05,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:42:05,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:42:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:42:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:42:05,869 INFO L87 Difference]: Start difference. First operand 9472 states and 20061 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:12,287 INFO L93 Difference]: Finished difference Result 12479 states and 26204 transitions. [2022-11-23 14:42:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:42:12,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:42:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:12,305 INFO L225 Difference]: With dead ends: 12479 [2022-11-23 14:42:12,305 INFO L226 Difference]: Without dead ends: 12479 [2022-11-23 14:42:12,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:42:12,306 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 365 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:12,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 355 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 14:42:12,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12479 states. [2022-11-23 14:42:12,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12479 to 9485. [2022-11-23 14:42:12,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9485 states, 9442 states have (on average 2.1275153569159078) internal successors, (20088), 9484 states have internal predecessors, (20088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9485 states to 9485 states and 20088 transitions. [2022-11-23 14:42:12,433 INFO L78 Accepts]: Start accepts. Automaton has 9485 states and 20088 transitions. Word has length 31 [2022-11-23 14:42:12,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:12,433 INFO L495 AbstractCegarLoop]: Abstraction has 9485 states and 20088 transitions. [2022-11-23 14:42:12,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:12,433 INFO L276 IsEmpty]: Start isEmpty. Operand 9485 states and 20088 transitions. [2022-11-23 14:42:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:42:12,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:12,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:12,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-23 14:42:12,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:12,638 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:42:12,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash 31515106, now seen corresponding path program 14 times [2022-11-23 14:42:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:42:12,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011692269] [2022-11-23 14:42:12,639 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:42:12,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:42:12,640 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:42:12,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-23 14:42:12,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:42:12,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:42:12,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:42:12,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:42:12,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:12,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:42:12,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:12,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:42:12,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:42:13,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:42:13,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:42:13,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-23 14:42:13,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:42:13,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:42:13,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:42:13,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:42:13,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:42:13,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:42:13,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:42:13,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:42:13,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:42:13,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:42:13,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:13,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:13,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:13,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:42:13,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:13,786 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:42:13,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:13,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:42:13,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:42:13,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:42:13,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011692269] [2022-11-23 14:42:13,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011692269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:13,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:13,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:42:13,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211417637] [2022-11-23 14:42:13,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:13,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:42:13,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:42:13,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:42:13,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:42:13,841 INFO L87 Difference]: Start difference. First operand 9485 states and 20088 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:21,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:21,509 INFO L93 Difference]: Finished difference Result 12605 states and 26456 transitions. [2022-11-23 14:42:21,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:42:21,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:42:21,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:21,527 INFO L225 Difference]: With dead ends: 12605 [2022-11-23 14:42:21,528 INFO L226 Difference]: Without dead ends: 12605 [2022-11-23 14:42:21,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=235, Invalid=521, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:42:21,528 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 384 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:21,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 398 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 14:42:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12605 states. [2022-11-23 14:42:21,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12605 to 9491. [2022-11-23 14:42:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9491 states, 9448 states have (on average 2.1275402201524134) internal successors, (20101), 9490 states have internal predecessors, (20101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9491 states to 9491 states and 20101 transitions. [2022-11-23 14:42:21,652 INFO L78 Accepts]: Start accepts. Automaton has 9491 states and 20101 transitions. Word has length 31 [2022-11-23 14:42:21,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:21,653 INFO L495 AbstractCegarLoop]: Abstraction has 9491 states and 20101 transitions. [2022-11-23 14:42:21,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:21,653 INFO L276 IsEmpty]: Start isEmpty. Operand 9491 states and 20101 transitions. [2022-11-23 14:42:21,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:42:21,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:21,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:21,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-23 14:42:21,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:21,856 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:42:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1017050128, now seen corresponding path program 15 times [2022-11-23 14:42:21,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:42:21,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479919963] [2022-11-23 14:42:21,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:42:21,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:21,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:42:21,857 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:42:21,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-23 14:42:22,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:42:22,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:42:22,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:42:22,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:42:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:42:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:42:22,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:42:22,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:42:22,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:42:22,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:42:22,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:42:22,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:42:22,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:22,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:22,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:22,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:42:22,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:42:22,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:22,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:42:23,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:23,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:23,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:23,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:23,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:23,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:23,332 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:42:23,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:42:23,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:42:23,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:42:23,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479919963] [2022-11-23 14:42:23,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479919963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:23,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:23,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:42:23,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524943913] [2022-11-23 14:42:23,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:23,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:42:23,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:42:23,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:42:23,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:42:23,394 INFO L87 Difference]: Start difference. First operand 9491 states and 20101 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:29,488 INFO L93 Difference]: Finished difference Result 12433 states and 26115 transitions. [2022-11-23 14:42:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 14:42:29,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:42:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:29,504 INFO L225 Difference]: With dead ends: 12433 [2022-11-23 14:42:29,504 INFO L226 Difference]: Without dead ends: 12433 [2022-11-23 14:42:29,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2022-11-23 14:42:29,505 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 338 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:29,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 346 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 14:42:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12433 states. [2022-11-23 14:42:29,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12433 to 9502. [2022-11-23 14:42:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9502 states, 9459 states have (on average 2.1273919018923775) internal successors, (20123), 9501 states have internal predecessors, (20123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:29,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9502 states to 9502 states and 20123 transitions. [2022-11-23 14:42:29,629 INFO L78 Accepts]: Start accepts. Automaton has 9502 states and 20123 transitions. Word has length 31 [2022-11-23 14:42:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:29,630 INFO L495 AbstractCegarLoop]: Abstraction has 9502 states and 20123 transitions. [2022-11-23 14:42:29,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 9502 states and 20123 transitions. [2022-11-23 14:42:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:42:29,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:29,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:29,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-23 14:42:29,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:29,832 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:42:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 845004576, now seen corresponding path program 16 times [2022-11-23 14:42:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:42:29,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138625166] [2022-11-23 14:42:29,833 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:42:29,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:29,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:42:29,834 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:42:29,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-23 14:42:30,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:42:30,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:42:30,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-23 14:42:30,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:42:30,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:42:30,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:42:30,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:42:30,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:42:30,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:42:30,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:42:30,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:42:30,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:42:30,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:30,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:30,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:30,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:42:30,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:42:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:42:30,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:30,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:42:30,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:30,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:30,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:30,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:30,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:42:31,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:31,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:31,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:31,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:31,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:42:31,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:42:31,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:42:31,134 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:42:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138625166] [2022-11-23 14:42:31,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138625166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:31,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:31,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:42:31,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514656519] [2022-11-23 14:42:31,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:31,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:42:31,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:42:31,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:42:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:42:31,136 INFO L87 Difference]: Start difference. First operand 9502 states and 20123 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:36,990 INFO L93 Difference]: Finished difference Result 12492 states and 26234 transitions. [2022-11-23 14:42:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:42:36,991 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:42:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:37,018 INFO L225 Difference]: With dead ends: 12492 [2022-11-23 14:42:37,018 INFO L226 Difference]: Without dead ends: 12492 [2022-11-23 14:42:37,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:42:37,019 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 354 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:37,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 352 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 14:42:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2022-11-23 14:42:37,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 9491. [2022-11-23 14:42:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9491 states, 9448 states have (on average 2.1275402201524134) internal successors, (20101), 9490 states have internal predecessors, (20101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9491 states to 9491 states and 20101 transitions. [2022-11-23 14:42:37,207 INFO L78 Accepts]: Start accepts. Automaton has 9491 states and 20101 transitions. Word has length 31 [2022-11-23 14:42:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:37,207 INFO L495 AbstractCegarLoop]: Abstraction has 9491 states and 20101 transitions. [2022-11-23 14:42:37,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:37,208 INFO L276 IsEmpty]: Start isEmpty. Operand 9491 states and 20101 transitions. [2022-11-23 14:42:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:42:37,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:37,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:37,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-23 14:42:37,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:37,426 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:42:37,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:37,427 INFO L85 PathProgramCache]: Analyzing trace with hash 524889060, now seen corresponding path program 17 times [2022-11-23 14:42:37,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:42:37,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950736650] [2022-11-23 14:42:37,427 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:42:37,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:37,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:42:37,428 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:42:37,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-23 14:42:37,671 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:42:37,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:42:37,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:42:37,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:42:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:37,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:42:37,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:37,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:42:37,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:42:37,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:42:37,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:42:37,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:42:38,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:42:38,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:38,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:38,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:42:38,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:42:38,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:42:38,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:42:38,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:42:38,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:42:38,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:38,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:38,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:38,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:42:38,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:38,676 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:42:38,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:42:38,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:42:38,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:42:38,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950736650] [2022-11-23 14:42:38,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950736650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:38,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:38,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:42:38,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222852818] [2022-11-23 14:42:38,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:38,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:42:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:42:38,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:42:38,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:42:38,728 INFO L87 Difference]: Start difference. First operand 9491 states and 20101 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:45,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:45,804 INFO L93 Difference]: Finished difference Result 12598 states and 26446 transitions. [2022-11-23 14:42:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:42:45,804 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:42:45,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:45,822 INFO L225 Difference]: With dead ends: 12598 [2022-11-23 14:42:45,822 INFO L226 Difference]: Without dead ends: 12598 [2022-11-23 14:42:45,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:42:45,823 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 387 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:45,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 349 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-23 14:42:45,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12598 states. [2022-11-23 14:42:45,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12598 to 9473. [2022-11-23 14:42:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9473 states, 9430 states have (on average 2.1277836691410394) internal successors, (20065), 9472 states have internal predecessors, (20065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:45,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9473 states to 9473 states and 20065 transitions. [2022-11-23 14:42:45,950 INFO L78 Accepts]: Start accepts. Automaton has 9473 states and 20065 transitions. Word has length 31 [2022-11-23 14:42:45,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:45,950 INFO L495 AbstractCegarLoop]: Abstraction has 9473 states and 20065 transitions. [2022-11-23 14:42:45,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9473 states and 20065 transitions. [2022-11-23 14:42:45,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:42:45,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:45,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:45,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-23 14:42:46,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:46,158 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:42:46,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:46,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1603248526, now seen corresponding path program 18 times [2022-11-23 14:42:46,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:42:46,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239972680] [2022-11-23 14:42:46,158 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:42:46,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:46,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:42:46,160 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:42:46,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-23 14:42:46,410 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:42:46,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:42:46,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:42:46,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:42:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:46,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:42:46,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:46,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:42:46,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:42:46,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:42:46,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:42:46,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:42:46,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:42:46,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:42:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:47,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:47,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:47,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:47,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:42:47,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:42:47,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:42:47,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:47,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:47,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:47,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:47,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:42:47,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:47,620 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:42:47,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:47,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:42:47,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:42:47,679 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:42:47,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239972680] [2022-11-23 14:42:47,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239972680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:47,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:47,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:42:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99683] [2022-11-23 14:42:47,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:47,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:42:47,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:42:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:42:47,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:42:47,680 INFO L87 Difference]: Start difference. First operand 9473 states and 20065 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:53,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:42:53,854 INFO L93 Difference]: Finished difference Result 12395 states and 26039 transitions. [2022-11-23 14:42:53,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 14:42:53,855 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:42:53,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:42:53,873 INFO L225 Difference]: With dead ends: 12395 [2022-11-23 14:42:53,873 INFO L226 Difference]: Without dead ends: 12395 [2022-11-23 14:42:53,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-11-23 14:42:53,874 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 300 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:42:53,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 388 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 14:42:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12395 states. [2022-11-23 14:42:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12395 to 9462. [2022-11-23 14:42:53,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9462 states, 9419 states have (on average 2.127932901581909) internal successors, (20043), 9461 states have internal predecessors, (20043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9462 states to 9462 states and 20043 transitions. [2022-11-23 14:42:54,002 INFO L78 Accepts]: Start accepts. Automaton has 9462 states and 20043 transitions. Word has length 31 [2022-11-23 14:42:54,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:42:54,002 INFO L495 AbstractCegarLoop]: Abstraction has 9462 states and 20043 transitions. [2022-11-23 14:42:54,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:42:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 9462 states and 20043 transitions. [2022-11-23 14:42:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:42:54,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:42:54,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:42:54,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-23 14:42:54,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:54,206 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:42:54,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:42:54,206 INFO L85 PathProgramCache]: Analyzing trace with hash 258806178, now seen corresponding path program 19 times [2022-11-23 14:42:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:42:54,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113830013] [2022-11-23 14:42:54,206 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:42:54,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:42:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:42:54,207 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:42:54,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-23 14:42:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:42:54,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-23 14:42:54,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:42:54,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:42:54,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:42:54,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:42:54,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:42:54,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:42:54,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:42:54,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:42:54,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:42:54,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:54,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:54,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:54,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:55,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:42:55,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:42:55,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:42:55,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:55,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:42:55,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:55,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:55,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:42:55,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:42:55,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:42:55,485 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:42:55,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:42:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:42:55,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:42:55,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:42:55,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113830013] [2022-11-23 14:42:55,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113830013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:42:55,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:42:55,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:42:55,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315213935] [2022-11-23 14:42:55,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:42:55,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:42:55,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:42:55,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:42:55,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:42:55,538 INFO L87 Difference]: Start difference. First operand 9462 states and 20043 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:00,984 INFO L93 Difference]: Finished difference Result 12439 states and 26128 transitions. [2022-11-23 14:43:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:43:00,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:43:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:01,004 INFO L225 Difference]: With dead ends: 12439 [2022-11-23 14:43:01,004 INFO L226 Difference]: Without dead ends: 12439 [2022-11-23 14:43:01,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:43:01,005 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 348 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:01,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 345 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 14:43:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12439 states. [2022-11-23 14:43:01,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12439 to 9437. [2022-11-23 14:43:01,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9437 states, 9394 states have (on average 2.128273365978284) internal successors, (19993), 9436 states have internal predecessors, (19993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:01,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9437 states to 9437 states and 19993 transitions. [2022-11-23 14:43:01,134 INFO L78 Accepts]: Start accepts. Automaton has 9437 states and 19993 transitions. Word has length 31 [2022-11-23 14:43:01,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:01,134 INFO L495 AbstractCegarLoop]: Abstraction has 9437 states and 19993 transitions. [2022-11-23 14:43:01,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:01,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9437 states and 19993 transitions. [2022-11-23 14:43:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:43:01,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:01,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:01,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:01,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:01,337 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:43:01,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:01,338 INFO L85 PathProgramCache]: Analyzing trace with hash 126452078, now seen corresponding path program 4 times [2022-11-23 14:43:01,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:43:01,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131517984] [2022-11-23 14:43:01,338 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:43:01,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:01,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:43:01,339 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:43:01,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-23 14:43:01,615 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:43:01,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:43:01,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:43:01,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:01,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:01,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:43:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:01,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:43:01,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:43:02,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:02,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:43:02,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:43:02,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:43:02,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:43:02,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:43:02,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:02,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:02,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:02,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:02,635 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:02,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:43:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:02,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:43:02,721 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:43:02,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131517984] [2022-11-23 14:43:02,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131517984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:02,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:02,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:43:02,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111530564] [2022-11-23 14:43:02,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:02,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:43:02,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:43:02,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:43:02,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:43:02,723 INFO L87 Difference]: Start difference. First operand 9437 states and 19993 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:09,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:09,924 INFO L93 Difference]: Finished difference Result 13089 states and 27356 transitions. [2022-11-23 14:43:09,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:43:09,925 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:43:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:09,945 INFO L225 Difference]: With dead ends: 13089 [2022-11-23 14:43:09,945 INFO L226 Difference]: Without dead ends: 13089 [2022-11-23 14:43:09,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2022-11-23 14:43:09,945 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 687 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 2582 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 2582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:09,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 718 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 2582 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 14:43:09,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13089 states. [2022-11-23 14:43:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13089 to 9820. [2022-11-23 14:43:10,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9820 states, 9777 states have (on average 2.124373529712591) internal successors, (20770), 9819 states have internal predecessors, (20770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9820 states to 9820 states and 20770 transitions. [2022-11-23 14:43:10,097 INFO L78 Accepts]: Start accepts. Automaton has 9820 states and 20770 transitions. Word has length 31 [2022-11-23 14:43:10,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:10,098 INFO L495 AbstractCegarLoop]: Abstraction has 9820 states and 20770 transitions. [2022-11-23 14:43:10,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:10,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9820 states and 20770 transitions. [2022-11-23 14:43:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:43:10,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:10,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:10,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:10,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:10,302 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:43:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1322580147, now seen corresponding path program 4 times [2022-11-23 14:43:10,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:43:10,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569814472] [2022-11-23 14:43:10,303 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:43:10,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:10,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:43:10,304 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:43:10,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-23 14:43:10,559 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:43:10,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:43:10,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:43:10,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:10,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:10,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:43:10,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:10,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:43:10,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:43:11,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:11,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:43:11,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:43:11,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:43:11,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,316 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:11,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-23 14:43:11,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:11,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:43:11,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:11,419 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:11,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:43:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:11,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:43:11,480 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:43:11,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569814472] [2022-11-23 14:43:11,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569814472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:11,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:11,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:43:11,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289291798] [2022-11-23 14:43:11,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:11,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:43:11,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:43:11,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:43:11,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:43:11,482 INFO L87 Difference]: Start difference. First operand 9820 states and 20770 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:17,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:17,580 INFO L93 Difference]: Finished difference Result 12782 states and 26729 transitions. [2022-11-23 14:43:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 14:43:17,581 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:43:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:17,599 INFO L225 Difference]: With dead ends: 12782 [2022-11-23 14:43:17,599 INFO L226 Difference]: Without dead ends: 12782 [2022-11-23 14:43:17,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 14:43:17,600 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 605 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:17,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 744 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 14:43:17,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12782 states. [2022-11-23 14:43:17,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12782 to 9966. [2022-11-23 14:43:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9966 states, 9923 states have (on average 2.124458329134334) internal successors, (21081), 9965 states have internal predecessors, (21081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9966 states to 9966 states and 21081 transitions. [2022-11-23 14:43:17,727 INFO L78 Accepts]: Start accepts. Automaton has 9966 states and 21081 transitions. Word has length 31 [2022-11-23 14:43:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:17,727 INFO L495 AbstractCegarLoop]: Abstraction has 9966 states and 21081 transitions. [2022-11-23 14:43:17,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:17,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9966 states and 21081 transitions. [2022-11-23 14:43:17,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:43:17,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:17,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:17,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:17,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:17,931 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:43:17,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:17,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1867680140, now seen corresponding path program 5 times [2022-11-23 14:43:17,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:43:17,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287661989] [2022-11-23 14:43:17,932 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:43:17,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:17,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:43:17,933 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:43:17,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-23 14:43:18,188 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:43:18,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:43:18,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-23 14:43:18,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:18,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:18,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:43:18,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:18,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:43:18,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:43:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:18,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:43:18,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:43:18,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:43:19,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:43:19,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:43:19,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:19,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:19,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:19,339 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:19,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:43:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:19,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:43:19,450 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:43:19,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287661989] [2022-11-23 14:43:19,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287661989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:19,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:19,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:43:19,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162413504] [2022-11-23 14:43:19,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:19,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:43:19,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:43:19,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:43:19,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:43:19,452 INFO L87 Difference]: Start difference. First operand 9966 states and 21081 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:29,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:29,833 INFO L93 Difference]: Finished difference Result 14071 states and 29390 transitions. [2022-11-23 14:43:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:43:29,834 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:43:29,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:29,853 INFO L225 Difference]: With dead ends: 14071 [2022-11-23 14:43:29,854 INFO L226 Difference]: Without dead ends: 14071 [2022-11-23 14:43:29,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 14:43:29,854 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 574 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 3563 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 3617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:29,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1215 Invalid, 3617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-23 14:43:29,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14071 states. [2022-11-23 14:43:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14071 to 11786. [2022-11-23 14:43:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11786 states, 11743 states have (on average 2.127565358085668) internal successors, (24984), 11785 states have internal predecessors, (24984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:30,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11786 states to 11786 states and 24984 transitions. [2022-11-23 14:43:30,016 INFO L78 Accepts]: Start accepts. Automaton has 11786 states and 24984 transitions. Word has length 31 [2022-11-23 14:43:30,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:30,016 INFO L495 AbstractCegarLoop]: Abstraction has 11786 states and 24984 transitions. [2022-11-23 14:43:30,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand 11786 states and 24984 transitions. [2022-11-23 14:43:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:43:30,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:30,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:30,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:30,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:30,220 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:43:30,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash -2133175610, now seen corresponding path program 6 times [2022-11-23 14:43:30,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:43:30,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424517779] [2022-11-23 14:43:30,221 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:43:30,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:30,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:43:30,222 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:43:30,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-23 14:43:30,480 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:43:30,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:43:30,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:43:30,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:30,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:30,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:43:30,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:30,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:43:30,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:43:31,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:31,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:43:31,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:43:31,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:43:31,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:43:31,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:43:31,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:31,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:31,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:31,524 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:31,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:43:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:31,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:43:31,612 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:43:31,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424517779] [2022-11-23 14:43:31,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424517779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:31,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:31,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:43:31,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334496726] [2022-11-23 14:43:31,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:31,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:43:31,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:43:31,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:43:31,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:43:31,613 INFO L87 Difference]: Start difference. First operand 11786 states and 24984 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:39,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:39,877 INFO L93 Difference]: Finished difference Result 13743 states and 28942 transitions. [2022-11-23 14:43:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:43:39,878 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:43:39,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:39,900 INFO L225 Difference]: With dead ends: 13743 [2022-11-23 14:43:39,900 INFO L226 Difference]: Without dead ends: 13743 [2022-11-23 14:43:39,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:43:39,900 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 579 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 3076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:39,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 726 Invalid, 3076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-23 14:43:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13743 states. [2022-11-23 14:43:40,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13743 to 11787. [2022-11-23 14:43:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11787 states, 11744 states have (on average 2.1275544959128063) internal successors, (24986), 11786 states have internal predecessors, (24986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:40,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11787 states to 11787 states and 24986 transitions. [2022-11-23 14:43:40,067 INFO L78 Accepts]: Start accepts. Automaton has 11787 states and 24986 transitions. Word has length 31 [2022-11-23 14:43:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:40,068 INFO L495 AbstractCegarLoop]: Abstraction has 11787 states and 24986 transitions. [2022-11-23 14:43:40,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:40,068 INFO L276 IsEmpty]: Start isEmpty. Operand 11787 states and 24986 transitions. [2022-11-23 14:43:40,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:43:40,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:40,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:40,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:40,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:40,272 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:43:40,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2121499460, now seen corresponding path program 7 times [2022-11-23 14:43:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:43:40,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112351352] [2022-11-23 14:43:40,273 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:43:40,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:40,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:43:40,274 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:43:40,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-23 14:43:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:40,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-23 14:43:40,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:40,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:40,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:43:40,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:40,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:43:40,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:43:41,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:41,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:43:41,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:43:41,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:43:41,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:43:41,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:43:41,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:41,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:41,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:41,774 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:41,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:43:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:41,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:43:41,881 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:43:41,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112351352] [2022-11-23 14:43:41,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112351352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:41,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:41,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:43:41,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703858311] [2022-11-23 14:43:41,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:41,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:43:41,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:43:41,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:43:41,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:43:41,882 INFO L87 Difference]: Start difference. First operand 11787 states and 24986 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:54,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:54,503 INFO L93 Difference]: Finished difference Result 13986 states and 29219 transitions. [2022-11-23 14:43:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 14:43:54,504 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:43:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:54,526 INFO L225 Difference]: With dead ends: 13986 [2022-11-23 14:43:54,526 INFO L226 Difference]: Without dead ends: 13986 [2022-11-23 14:43:54,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:43:54,527 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 696 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 4020 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 4076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 4020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:54,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 933 Invalid, 4076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 4020 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-23 14:43:54,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-11-23 14:43:54,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 11784. [2022-11-23 14:43:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11784 states, 11741 states have (on average 2.1274167447406525) internal successors, (24978), 11783 states have internal predecessors, (24978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11784 states to 11784 states and 24978 transitions. [2022-11-23 14:43:54,736 INFO L78 Accepts]: Start accepts. Automaton has 11784 states and 24978 transitions. Word has length 31 [2022-11-23 14:43:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:54,736 INFO L495 AbstractCegarLoop]: Abstraction has 11784 states and 24978 transitions. [2022-11-23 14:43:54,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:43:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand 11784 states and 24978 transitions. [2022-11-23 14:43:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:43:54,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:54,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:54,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:54,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:54,940 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:43:54,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:54,941 INFO L85 PathProgramCache]: Analyzing trace with hash -151120372, now seen corresponding path program 8 times [2022-11-23 14:43:54,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:43:54,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439312422] [2022-11-23 14:43:54,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:43:54,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:43:54,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:43:54,942 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:43:54,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-23 14:43:55,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:43:55,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:43:55,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-23 14:43:55,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:55,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:55,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:43:55,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:55,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:43:55,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:43:55,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:55,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:43:55,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:43:55,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:43:56,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:43:56,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:43:56,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:56,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:56,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:56,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:56,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:43:56,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:43:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:56,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:43:56,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:43:56,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439312422] [2022-11-23 14:43:56,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439312422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:56,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:56,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:43:56,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636534666] [2022-11-23 14:43:56,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:56,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:43:56,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:43:56,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:43:56,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:43:56,465 INFO L87 Difference]: Start difference. First operand 11784 states and 24978 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:04,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:04,396 INFO L93 Difference]: Finished difference Result 14086 states and 29411 transitions. [2022-11-23 14:44:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:44:04,397 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:44:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:04,414 INFO L225 Difference]: With dead ends: 14086 [2022-11-23 14:44:04,414 INFO L226 Difference]: Without dead ends: 14086 [2022-11-23 14:44:04,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:44:04,415 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 565 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:04,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 958 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 14:44:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14086 states. [2022-11-23 14:44:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14086 to 11759. [2022-11-23 14:44:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11759 states, 11716 states have (on average 2.1268350973028336) internal successors, (24918), 11758 states have internal predecessors, (24918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11759 states to 11759 states and 24918 transitions. [2022-11-23 14:44:04,620 INFO L78 Accepts]: Start accepts. Automaton has 11759 states and 24918 transitions. Word has length 31 [2022-11-23 14:44:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:04,620 INFO L495 AbstractCegarLoop]: Abstraction has 11759 states and 24918 transitions. [2022-11-23 14:44:04,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 11759 states and 24918 transitions. [2022-11-23 14:44:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:44:04,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:04,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:04,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:04,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:04,823 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:44:04,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1944499559, now seen corresponding path program 5 times [2022-11-23 14:44:04,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:44:04,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083455442] [2022-11-23 14:44:04,824 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:44:04,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:04,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:44:04,825 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:44:04,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-23 14:44:05,101 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:44:05,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:44:05,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-23 14:44:05,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:05,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:44:05,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:44:05,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:44:05,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:05,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:44:05,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:44:05,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:05,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:44:05,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:05,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:44:06,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:06,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:06,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:06,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:06,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:06,271 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:06,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-23 14:44:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:06,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:06,340 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:44:06,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083455442] [2022-11-23 14:44:06,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083455442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:06,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:06,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:44:06,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351575678] [2022-11-23 14:44:06,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:06,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:44:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:44:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:44:06,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:44:06,342 INFO L87 Difference]: Start difference. First operand 11759 states and 24918 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:14,449 INFO L93 Difference]: Finished difference Result 13634 states and 28733 transitions. [2022-11-23 14:44:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 14:44:14,449 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:44:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:14,467 INFO L225 Difference]: With dead ends: 13634 [2022-11-23 14:44:14,467 INFO L226 Difference]: Without dead ends: 13634 [2022-11-23 14:44:14,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=415, Invalid=917, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 14:44:14,468 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 378 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:14,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 569 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 14:44:14,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13634 states. [2022-11-23 14:44:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13634 to 11758. [2022-11-23 14:44:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11758 states, 11715 states have (on average 2.1268459240290225) internal successors, (24916), 11757 states have internal predecessors, (24916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11758 states to 11758 states and 24916 transitions. [2022-11-23 14:44:14,632 INFO L78 Accepts]: Start accepts. Automaton has 11758 states and 24916 transitions. Word has length 31 [2022-11-23 14:44:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:14,632 INFO L495 AbstractCegarLoop]: Abstraction has 11758 states and 24916 transitions. [2022-11-23 14:44:14,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 11758 states and 24916 transitions. [2022-11-23 14:44:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:44:14,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:14,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:14,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:14,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:14,835 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:44:14,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:14,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1986511975, now seen corresponding path program 6 times [2022-11-23 14:44:14,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:44:14,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679747039] [2022-11-23 14:44:14,835 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:44:14,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:14,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:44:14,836 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:44:14,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-23 14:44:15,110 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:44:15,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:44:15,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-23 14:44:15,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:15,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:44:15,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:44:15,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:44:15,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:15,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:44:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:44:15,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:15,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:44:15,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:15,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:44:16,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:16,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:16,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:16,216 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:16,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-23 14:44:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:16,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:16,275 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:44:16,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679747039] [2022-11-23 14:44:16,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679747039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:16,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:16,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:44:16,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231421471] [2022-11-23 14:44:16,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:16,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:44:16,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:44:16,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:44:16,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:44:16,276 INFO L87 Difference]: Start difference. First operand 11758 states and 24916 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:24,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:24,714 INFO L93 Difference]: Finished difference Result 13651 states and 28767 transitions. [2022-11-23 14:44:24,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 14:44:24,715 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:44:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:24,733 INFO L225 Difference]: With dead ends: 13651 [2022-11-23 14:44:24,733 INFO L226 Difference]: Without dead ends: 13651 [2022-11-23 14:44:24,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=428, Invalid=978, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 14:44:24,734 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 533 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:24,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 463 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-23 14:44:24,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2022-11-23 14:44:24,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 11776. [2022-11-23 14:44:24,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11776 states, 11733 states have (on average 2.1266513253217423) internal successors, (24952), 11775 states have internal predecessors, (24952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11776 states to 11776 states and 24952 transitions. [2022-11-23 14:44:24,872 INFO L78 Accepts]: Start accepts. Automaton has 11776 states and 24952 transitions. Word has length 31 [2022-11-23 14:44:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:24,873 INFO L495 AbstractCegarLoop]: Abstraction has 11776 states and 24952 transitions. [2022-11-23 14:44:24,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 11776 states and 24952 transitions. [2022-11-23 14:44:24,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:44:24,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:24,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:24,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:25,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:25,075 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:44:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash 88021163, now seen corresponding path program 7 times [2022-11-23 14:44:25,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:44:25,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878049314] [2022-11-23 14:44:25,076 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:44:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:25,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:44:25,077 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:44:25,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-23 14:44:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:25,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-23 14:44:25,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:25,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:25,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:44:25,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:25,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:44:25,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:44:25,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:44:26,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:26,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:44:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:44:26,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:44:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:26,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:26,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:26,489 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:26,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-23 14:44:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:26,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:26,547 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:44:26,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878049314] [2022-11-23 14:44:26,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878049314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:26,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:26,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:44:26,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465533090] [2022-11-23 14:44:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:26,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:44:26,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:44:26,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:44:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:44:26,548 INFO L87 Difference]: Start difference. First operand 11776 states and 24952 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:34,124 INFO L93 Difference]: Finished difference Result 13714 states and 28893 transitions. [2022-11-23 14:44:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 14:44:34,125 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:44:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:34,143 INFO L225 Difference]: With dead ends: 13714 [2022-11-23 14:44:34,143 INFO L226 Difference]: Without dead ends: 13714 [2022-11-23 14:44:34,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 14:44:34,144 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 492 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:34,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 570 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-23 14:44:34,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13714 states. [2022-11-23 14:44:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13714 to 11798. [2022-11-23 14:44:34,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11798 states, 11755 states have (on average 2.126414291790727) internal successors, (24996), 11797 states have internal predecessors, (24996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11798 states to 11798 states and 24996 transitions. [2022-11-23 14:44:34,330 INFO L78 Accepts]: Start accepts. Automaton has 11798 states and 24996 transitions. Word has length 31 [2022-11-23 14:44:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:34,330 INFO L495 AbstractCegarLoop]: Abstraction has 11798 states and 24996 transitions. [2022-11-23 14:44:34,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 11798 states and 24996 transitions. [2022-11-23 14:44:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:44:34,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:34,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:34,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:34,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:34,533 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:44:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash 921448995, now seen corresponding path program 8 times [2022-11-23 14:44:34,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:44:34,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568034838] [2022-11-23 14:44:34,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:44:34,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:34,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:44:34,535 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:44:34,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-23 14:44:34,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:44:34,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:44:34,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-23 14:44:34,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:44:34,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:44:34,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:44:35,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:35,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:44:35,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:44:35,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:44:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:44:35,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:35,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:35,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:35,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:44:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,903 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:35,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-23 14:44:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:35,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:35,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:44:35,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568034838] [2022-11-23 14:44:35,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568034838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:35,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:35,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:44:35,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415100796] [2022-11-23 14:44:35,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:35,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:44:35,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:44:35,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:44:35,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:44:35,968 INFO L87 Difference]: Start difference. First operand 11798 states and 24996 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:42,492 INFO L93 Difference]: Finished difference Result 13711 states and 28884 transitions. [2022-11-23 14:44:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 14:44:42,492 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:44:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:42,511 INFO L225 Difference]: With dead ends: 13711 [2022-11-23 14:44:42,511 INFO L226 Difference]: Without dead ends: 13711 [2022-11-23 14:44:42,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:44:42,512 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 520 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:42,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 569 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-23 14:44:42,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13711 states. [2022-11-23 14:44:42,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13711 to 11769. [2022-11-23 14:44:42,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11769 states, 11726 states have (on average 2.126471089885724) internal successors, (24935), 11768 states have internal predecessors, (24935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:42,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11769 states to 11769 states and 24935 transitions. [2022-11-23 14:44:42,656 INFO L78 Accepts]: Start accepts. Automaton has 11769 states and 24935 transitions. Word has length 31 [2022-11-23 14:44:42,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:42,656 INFO L495 AbstractCegarLoop]: Abstraction has 11769 states and 24935 transitions. [2022-11-23 14:44:42,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:42,656 INFO L276 IsEmpty]: Start isEmpty. Operand 11769 states and 24935 transitions. [2022-11-23 14:44:42,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:44:42,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:42,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:42,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:42,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:42,859 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:44:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:42,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2009918228, now seen corresponding path program 9 times [2022-11-23 14:44:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:44:42,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886309252] [2022-11-23 14:44:42,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:44:42,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:42,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:44:42,861 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:44:42,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-23 14:44:43,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:44:43,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:44:43,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:44:43,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:43,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:43,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:44:43,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:43,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:44:43,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:44:43,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:43,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:44:43,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:44:43,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:44:43,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:44:44,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:44:44,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:44,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:44,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:44,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:44,176 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:44,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:44:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:44,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:44,261 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:44:44,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886309252] [2022-11-23 14:44:44,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886309252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:44,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:44,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:44:44,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478805353] [2022-11-23 14:44:44,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:44,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:44:44,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:44:44,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:44:44,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:44:44,263 INFO L87 Difference]: Start difference. First operand 11769 states and 24935 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:52,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:52,596 INFO L93 Difference]: Finished difference Result 14117 states and 29683 transitions. [2022-11-23 14:44:52,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:44:52,597 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:44:52,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:52,616 INFO L225 Difference]: With dead ends: 14117 [2022-11-23 14:44:52,616 INFO L226 Difference]: Without dead ends: 14117 [2022-11-23 14:44:52,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:44:52,616 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 551 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 3674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:52,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 512 Invalid, 3674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-23 14:44:52,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14117 states. [2022-11-23 14:44:52,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14117 to 12534. [2022-11-23 14:44:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12534 states, 12491 states have (on average 2.1219277880073655) internal successors, (26505), 12533 states have internal predecessors, (26505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12534 states to 12534 states and 26505 transitions. [2022-11-23 14:44:52,819 INFO L78 Accepts]: Start accepts. Automaton has 12534 states and 26505 transitions. Word has length 31 [2022-11-23 14:44:52,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:52,819 INFO L495 AbstractCegarLoop]: Abstraction has 12534 states and 26505 transitions. [2022-11-23 14:44:52,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 12534 states and 26505 transitions. [2022-11-23 14:44:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:44:52,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:52,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:52,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:53,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:53,023 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:44:53,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:53,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1088920999, now seen corresponding path program 9 times [2022-11-23 14:44:53,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:44:53,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963869884] [2022-11-23 14:44:53,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:44:53,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:44:53,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:44:53,024 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:44:53,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-23 14:44:53,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:44:53,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:44:53,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-23 14:44:53,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:53,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:53,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:44:53,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:53,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:44:53,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:44:53,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:53,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:44:53,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:53,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:53,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:44:54,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:54,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:54,024 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:54,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-23 14:44:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:54,067 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:54,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:44:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:54,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:54,122 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:54,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:44:54,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:54,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:54,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:44:54,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963869884] [2022-11-23 14:44:54,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963869884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:54,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:54,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:44:54,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18227981] [2022-11-23 14:44:54,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:54,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:44:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:44:54,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:44:54,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:44:54,179 INFO L87 Difference]: Start difference. First operand 12534 states and 26505 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:00,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:00,257 INFO L93 Difference]: Finished difference Result 14128 states and 29699 transitions. [2022-11-23 14:45:00,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 14:45:00,257 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:00,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:00,276 INFO L225 Difference]: With dead ends: 14128 [2022-11-23 14:45:00,276 INFO L226 Difference]: Without dead ends: 14128 [2022-11-23 14:45:00,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=291, Invalid=765, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 14:45:00,277 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 597 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 2242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:00,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 475 Invalid, 2242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 14:45:00,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14128 states. [2022-11-23 14:45:00,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14128 to 12622. [2022-11-23 14:45:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12579 states have (on average 2.121154304793704) internal successors, (26682), 12621 states have internal predecessors, (26682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 26682 transitions. [2022-11-23 14:45:00,434 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 26682 transitions. Word has length 31 [2022-11-23 14:45:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:00,434 INFO L495 AbstractCegarLoop]: Abstraction has 12622 states and 26682 transitions. [2022-11-23 14:45:00,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 26682 transitions. [2022-11-23 14:45:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:00,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:00,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:00,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:00,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:00,637 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:00,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2074835102, now seen corresponding path program 20 times [2022-11-23 14:45:00,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:00,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013835234] [2022-11-23 14:45:00,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:45:00,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:00,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:00,638 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:00,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-23 14:45:00,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:45:00,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:45:00,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:45:00,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:00,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:00,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:45:00,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:00,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:45:00,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:45:01,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:45:01,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:45:01,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:45:01,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:45:01,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:45:01,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:01,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:01,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:01,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:01,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:45:01,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:45:01,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:45:01,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:01,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:01,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:01,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:01,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:01,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:02,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:02,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:02,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:02,019 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:02,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:02,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:02,070 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:02,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013835234] [2022-11-23 14:45:02,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013835234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:02,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:02,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:45:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492046936] [2022-11-23 14:45:02,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:02,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:45:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:02,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:45:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:45:02,071 INFO L87 Difference]: Start difference. First operand 12622 states and 26682 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:08,169 INFO L93 Difference]: Finished difference Result 15927 states and 33403 transitions. [2022-11-23 14:45:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 14:45:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:08,193 INFO L225 Difference]: With dead ends: 15927 [2022-11-23 14:45:08,193 INFO L226 Difference]: Without dead ends: 15927 [2022-11-23 14:45:08,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:45:08,193 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 318 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:08,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 411 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-23 14:45:08,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15927 states. [2022-11-23 14:45:08,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15927 to 13521. [2022-11-23 14:45:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 13478 states have (on average 2.118192610179552) internal successors, (28549), 13520 states have internal predecessors, (28549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:08,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 28549 transitions. [2022-11-23 14:45:08,379 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 28549 transitions. Word has length 31 [2022-11-23 14:45:08,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:08,380 INFO L495 AbstractCegarLoop]: Abstraction has 13521 states and 28549 transitions. [2022-11-23 14:45:08,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:08,380 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 28549 transitions. [2022-11-23 14:45:08,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:08,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:08,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:08,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:08,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:08,583 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:08,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:08,583 INFO L85 PathProgramCache]: Analyzing trace with hash -358077490, now seen corresponding path program 21 times [2022-11-23 14:45:08,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:08,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116213555] [2022-11-23 14:45:08,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:45:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:08,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:08,586 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:08,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-23 14:45:08,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:45:08,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:45:08,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:45:08,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:08,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:08,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:45:08,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:08,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:45:08,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:45:09,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:45:09,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:45:09,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:45:09,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:45:09,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:45:09,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:09,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:09,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:09,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:45:09,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:45:09,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:45:09,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:45:09,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:09,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:09,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:45:09,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:09,932 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:09,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:10,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:10,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:10,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116213555] [2022-11-23 14:45:10,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116213555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:10,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:10,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:45:10,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512466526] [2022-11-23 14:45:10,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:10,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:45:10,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:10,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:45:10,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:45:10,031 INFO L87 Difference]: Start difference. First operand 13521 states and 28549 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:16,693 INFO L93 Difference]: Finished difference Result 16401 states and 34374 transitions. [2022-11-23 14:45:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 14:45:16,693 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:16,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:16,718 INFO L225 Difference]: With dead ends: 16401 [2022-11-23 14:45:16,719 INFO L226 Difference]: Without dead ends: 16401 [2022-11-23 14:45:16,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:45:16,719 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 403 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:16,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 414 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-23 14:45:16,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16401 states. [2022-11-23 14:45:16,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16401 to 13557. [2022-11-23 14:45:16,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13557 states, 13514 states have (on average 2.1180257510729614) internal successors, (28623), 13556 states have internal predecessors, (28623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:16,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 28623 transitions. [2022-11-23 14:45:16,913 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 28623 transitions. Word has length 31 [2022-11-23 14:45:16,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:16,913 INFO L495 AbstractCegarLoop]: Abstraction has 13557 states and 28623 transitions. [2022-11-23 14:45:16,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:16,913 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 28623 transitions. [2022-11-23 14:45:16,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:16,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:16,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:16,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:17,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:17,117 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -678193006, now seen corresponding path program 22 times [2022-11-23 14:45:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:17,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130864969] [2022-11-23 14:45:17,118 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:45:17,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:17,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:17,119 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:17,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-23 14:45:17,424 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:45:17,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:45:17,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:45:17,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:17,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:45:17,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:45:17,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:45:17,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:45:17,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:45:17,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:45:17,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:45:17,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:45:17,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:45:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:45:17,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:45:17,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:45:18,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:45:18,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:45:18,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:45:18,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:45:18,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:18,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:18,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:18,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:45:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,429 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:18,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:18,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:18,486 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:18,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130864969] [2022-11-23 14:45:18,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130864969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:18,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:18,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:45:18,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292526880] [2022-11-23 14:45:18,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:18,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:45:18,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:18,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:45:18,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:45:18,487 INFO L87 Difference]: Start difference. First operand 13557 states and 28623 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:25,269 INFO L93 Difference]: Finished difference Result 16538 states and 34648 transitions. [2022-11-23 14:45:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 14:45:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:25,294 INFO L225 Difference]: With dead ends: 16538 [2022-11-23 14:45:25,295 INFO L226 Difference]: Without dead ends: 16538 [2022-11-23 14:45:25,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=225, Invalid=587, Unknown=0, NotChecked=0, Total=812 [2022-11-23 14:45:25,295 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 482 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:25,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 369 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 2336 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 14:45:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16538 states. [2022-11-23 14:45:25,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16538 to 13598. [2022-11-23 14:45:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13598 states, 13555 states have (on average 2.117963850977499) internal successors, (28709), 13597 states have internal predecessors, (28709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13598 states to 13598 states and 28709 transitions. [2022-11-23 14:45:25,482 INFO L78 Accepts]: Start accepts. Automaton has 13598 states and 28709 transitions. Word has length 31 [2022-11-23 14:45:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:25,482 INFO L495 AbstractCegarLoop]: Abstraction has 13598 states and 28709 transitions. [2022-11-23 14:45:25,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 13598 states and 28709 transitions. [2022-11-23 14:45:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:25,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:25,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:25,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:25,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:25,686 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:25,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1074622382, now seen corresponding path program 23 times [2022-11-23 14:45:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:25,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304443295] [2022-11-23 14:45:25,686 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:45:25,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:25,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:25,687 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:25,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-23 14:45:26,032 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:45:26,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:45:26,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:45:26,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:26,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:45:26,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:45:26,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:45:26,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:45:26,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:45:26,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-23 14:45:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:45:26,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:45:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:45:26,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:45:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:45:26,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:45:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:45:26,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:45:26,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:45:26,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:45:26,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:26,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:26,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:45:26,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:26,908 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:26,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:26,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:26,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:26,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304443295] [2022-11-23 14:45:26,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304443295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:26,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:26,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:45:26,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392924246] [2022-11-23 14:45:26,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:26,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:45:26,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:26,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:45:26,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:45:26,964 INFO L87 Difference]: Start difference. First operand 13598 states and 28709 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:34,556 INFO L93 Difference]: Finished difference Result 16680 states and 34932 transitions. [2022-11-23 14:45:34,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-23 14:45:34,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:34,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:34,582 INFO L225 Difference]: With dead ends: 16680 [2022-11-23 14:45:34,582 INFO L226 Difference]: Without dead ends: 16680 [2022-11-23 14:45:34,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2022-11-23 14:45:34,582 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 473 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 3205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:34,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 376 Invalid, 3205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 14:45:34,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16680 states. [2022-11-23 14:45:34,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16680 to 13639. [2022-11-23 14:45:34,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13639 states, 13596 states have (on average 2.117902324213004) internal successors, (28795), 13638 states have internal predecessors, (28795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:34,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13639 states to 13639 states and 28795 transitions. [2022-11-23 14:45:34,832 INFO L78 Accepts]: Start accepts. Automaton has 13639 states and 28795 transitions. Word has length 31 [2022-11-23 14:45:34,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:34,832 INFO L495 AbstractCegarLoop]: Abstraction has 13639 states and 28795 transitions. [2022-11-23 14:45:34,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:34,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13639 states and 28795 transitions. [2022-11-23 14:45:34,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:34,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:34,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:34,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:35,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:35,036 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash 450101928, now seen corresponding path program 24 times [2022-11-23 14:45:35,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:35,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442661771] [2022-11-23 14:45:35,037 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:45:35,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:35,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:35,038 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:35,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-23 14:45:35,346 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:45:35,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:45:35,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 14:45:35,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:35,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:45:35,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:45:35,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:45:35,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:45:35,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:35,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:35,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:35,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:45:35,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:35,934 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:35,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:35,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:35,985 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:35,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442661771] [2022-11-23 14:45:35,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442661771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:35,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:35,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:45:35,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656895743] [2022-11-23 14:45:35,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:35,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:45:35,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:35,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:45:35,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:45:35,986 INFO L87 Difference]: Start difference. First operand 13639 states and 28795 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:40,788 INFO L93 Difference]: Finished difference Result 20282 states and 42285 transitions. [2022-11-23 14:45:40,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 14:45:40,789 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:40,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:40,818 INFO L225 Difference]: With dead ends: 20282 [2022-11-23 14:45:40,818 INFO L226 Difference]: Without dead ends: 20282 [2022-11-23 14:45:40,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-11-23 14:45:40,819 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 744 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:40,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 402 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 14:45:40,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20282 states. [2022-11-23 14:45:41,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20282 to 12790. [2022-11-23 14:45:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12790 states, 12747 states have (on average 2.1161057503726366) internal successors, (26974), 12789 states have internal predecessors, (26974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12790 states to 12790 states and 26974 transitions. [2022-11-23 14:45:41,077 INFO L78 Accepts]: Start accepts. Automaton has 12790 states and 26974 transitions. Word has length 31 [2022-11-23 14:45:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:41,077 INFO L495 AbstractCegarLoop]: Abstraction has 12790 states and 26974 transitions. [2022-11-23 14:45:41,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:41,077 INFO L276 IsEmpty]: Start isEmpty. Operand 12790 states and 26974 transitions. [2022-11-23 14:45:41,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:41,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:41,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:41,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:41,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:41,280 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:41,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:41,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1221454637, now seen corresponding path program 7 times [2022-11-23 14:45:41,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:41,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404615464] [2022-11-23 14:45:41,281 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:45:41,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:41,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:41,282 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:41,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-23 14:45:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:41,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-23 14:45:41,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:41,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-23 14:45:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:41,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:45:41,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:41,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:41,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2022-11-23 14:45:42,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2022-11-23 14:45:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:42,107 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:42,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 72 [2022-11-23 14:45:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:42,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:42,161 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:42,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404615464] [2022-11-23 14:45:42,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404615464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:42,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:42,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:45:42,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404904570] [2022-11-23 14:45:42,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:42,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:45:42,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:42,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:45:42,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:45:42,162 INFO L87 Difference]: Start difference. First operand 12790 states and 26974 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:46,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:46,776 INFO L93 Difference]: Finished difference Result 16918 states and 35380 transitions. [2022-11-23 14:45:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:45:46,777 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:46,802 INFO L225 Difference]: With dead ends: 16918 [2022-11-23 14:45:46,802 INFO L226 Difference]: Without dead ends: 16918 [2022-11-23 14:45:46,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:45:46,802 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 646 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:46,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 381 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-23 14:45:46,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16918 states. [2022-11-23 14:45:46,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16918 to 10969. [2022-11-23 14:45:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10969 states, 10926 states have (on average 2.104338275672707) internal successors, (22992), 10968 states have internal predecessors, (22992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10969 states to 10969 states and 22992 transitions. [2022-11-23 14:45:46,982 INFO L78 Accepts]: Start accepts. Automaton has 10969 states and 22992 transitions. Word has length 31 [2022-11-23 14:45:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:46,983 INFO L495 AbstractCegarLoop]: Abstraction has 10969 states and 22992 transitions. [2022-11-23 14:45:46,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 10969 states and 22992 transitions. [2022-11-23 14:45:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:46,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:46,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:46,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:47,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:47,186 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:47,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash -335584052, now seen corresponding path program 25 times [2022-11-23 14:45:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:47,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375851332] [2022-11-23 14:45:47,186 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:45:47,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:47,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:47,188 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:47,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-23 14:45:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:47,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:45:47,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:47,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:47,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:45:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:47,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:45:47,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:45:47,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:45:47,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:45:47,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:45:47,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:45:48,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:45:48,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:48,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:48,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:48,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:48,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:45:48,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:45:48,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:45:48,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:48,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:48,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:48,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:48,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:45:48,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:48,779 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:48,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:48,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:48,847 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:48,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375851332] [2022-11-23 14:45:48,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375851332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:48,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:48,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:45:48,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320934805] [2022-11-23 14:45:48,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:48,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:45:48,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:48,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:45:48,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:45:48,848 INFO L87 Difference]: Start difference. First operand 10969 states and 22992 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:54,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:54,983 INFO L93 Difference]: Finished difference Result 13598 states and 28379 transitions. [2022-11-23 14:45:54,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:45:54,984 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:45:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:55,004 INFO L225 Difference]: With dead ends: 13598 [2022-11-23 14:45:55,005 INFO L226 Difference]: Without dead ends: 13598 [2022-11-23 14:45:55,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:45:55,005 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 270 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:55,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 376 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2003 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 14:45:55,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13598 states. [2022-11-23 14:45:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13598 to 11021. [2022-11-23 14:45:55,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11021 states, 10978 states have (on average 2.103844051739843) internal successors, (23096), 11020 states have internal predecessors, (23096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:55,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11021 states to 11021 states and 23096 transitions. [2022-11-23 14:45:55,216 INFO L78 Accepts]: Start accepts. Automaton has 11021 states and 23096 transitions. Word has length 31 [2022-11-23 14:45:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:55,216 INFO L495 AbstractCegarLoop]: Abstraction has 11021 states and 23096 transitions. [2022-11-23 14:45:55,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:45:55,217 INFO L276 IsEmpty]: Start isEmpty. Operand 11021 states and 23096 transitions. [2022-11-23 14:45:55,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:55,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:55,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:55,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:55,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:55,420 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:45:55,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:55,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1526470652, now seen corresponding path program 26 times [2022-11-23 14:45:55,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:45:55,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902079743] [2022-11-23 14:45:55,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:45:55,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:45:55,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:45:55,423 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:45:55,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-23 14:45:55,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:45:55,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:45:55,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-23 14:45:55,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:55,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:55,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:45:55,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:55,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:45:55,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:45:55,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:45:55,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:45:56,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:45:56,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:45:56,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:45:56,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:56,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:56,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:56,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:45:56,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:45:56,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:45:56,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:56,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:45:56,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:56,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:56,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:45:56,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:45:56,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:56,810 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:56,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:45:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:45:56,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:56,868 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:45:56,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902079743] [2022-11-23 14:45:56,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902079743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:56,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:56,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:45:56,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850032661] [2022-11-23 14:45:56,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:56,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:45:56,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:45:56,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:45:56,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:45:56,870 INFO L87 Difference]: Start difference. First operand 11021 states and 23096 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:02,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:02,471 INFO L93 Difference]: Finished difference Result 13657 states and 28498 transitions. [2022-11-23 14:46:02,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:46:02,471 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:46:02,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:02,493 INFO L225 Difference]: With dead ends: 13657 [2022-11-23 14:46:02,493 INFO L226 Difference]: Without dead ends: 13657 [2022-11-23 14:46:02,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:46:02,494 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 357 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:02,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 333 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-23 14:46:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13657 states. [2022-11-23 14:46:02,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13657 to 11028. [2022-11-23 14:46:02,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11028 states, 10985 states have (on average 2.1037778789258077) internal successors, (23110), 11027 states have internal predecessors, (23110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11028 states to 11028 states and 23110 transitions. [2022-11-23 14:46:02,701 INFO L78 Accepts]: Start accepts. Automaton has 11028 states and 23110 transitions. Word has length 31 [2022-11-23 14:46:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:02,701 INFO L495 AbstractCegarLoop]: Abstraction has 11028 states and 23110 transitions. [2022-11-23 14:46:02,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11028 states and 23110 transitions. [2022-11-23 14:46:02,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:46:02,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:02,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:02,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:02,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:02,905 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:46:02,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:02,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1206355136, now seen corresponding path program 27 times [2022-11-23 14:46:02,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:46:02,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611728244] [2022-11-23 14:46:02,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:46:02,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:02,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:46:02,908 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:46:02,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-23 14:46:03,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:46:03,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:46:03,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:46:03,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:03,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:46:03,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:46:03,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:46:03,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:46:03,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:46:03,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:46:03,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:46:03,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:03,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:03,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:03,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:46:03,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:46:03,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:46:03,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:03,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:03,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:46:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:46:04,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:04,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:04,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:04,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:46:04,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:04,293 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:46:04,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:04,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:46:04,352 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:46:04,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611728244] [2022-11-23 14:46:04,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611728244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:04,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:04,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:46:04,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220584481] [2022-11-23 14:46:04,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:04,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:46:04,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:46:04,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:46:04,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:46:04,353 INFO L87 Difference]: Start difference. First operand 11028 states and 23110 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:12,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:12,324 INFO L93 Difference]: Finished difference Result 13711 states and 28606 transitions. [2022-11-23 14:46:12,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 14:46:12,325 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:46:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:12,347 INFO L225 Difference]: With dead ends: 13711 [2022-11-23 14:46:12,347 INFO L226 Difference]: Without dead ends: 13711 [2022-11-23 14:46:12,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:46:12,347 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 318 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 2628 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:12,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 382 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2628 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-23 14:46:12,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13711 states. [2022-11-23 14:46:12,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13711 to 11035. [2022-11-23 14:46:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 10992 states have (on average 2.103711790393013) internal successors, (23124), 11034 states have internal predecessors, (23124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 23124 transitions. [2022-11-23 14:46:12,516 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 23124 transitions. Word has length 31 [2022-11-23 14:46:12,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:12,516 INFO L495 AbstractCegarLoop]: Abstraction has 11035 states and 23124 transitions. [2022-11-23 14:46:12,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:12,516 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 23124 transitions. [2022-11-23 14:46:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:46:12,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:12,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:12,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:12,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:12,720 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:46:12,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:12,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1335796772, now seen corresponding path program 28 times [2022-11-23 14:46:12,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:46:12,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451511779] [2022-11-23 14:46:12,720 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:46:12,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:12,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:46:12,721 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:46:12,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-23 14:46:13,081 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:46:13,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:46:13,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:46:13,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:13,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:46:13,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:46:13,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:46:13,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:46:13,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:46:13,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-23 14:46:13,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:46:13,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:46:13,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:46:13,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:46:13,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:46:13,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:46:13,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:46:13,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:46:13,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:46:13,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:46:13,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:13,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:13,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:13,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:13,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:46:14,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:14,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:14,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:14,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:14,105 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:46:14,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:14,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:46:14,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:46:14,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451511779] [2022-11-23 14:46:14,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451511779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:14,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:14,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:46:14,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128579629] [2022-11-23 14:46:14,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:14,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:46:14,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:46:14,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:46:14,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:46:14,173 INFO L87 Difference]: Start difference. First operand 11035 states and 23124 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:22,117 INFO L93 Difference]: Finished difference Result 13837 states and 28858 transitions. [2022-11-23 14:46:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 14:46:22,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:46:22,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:22,140 INFO L225 Difference]: With dead ends: 13837 [2022-11-23 14:46:22,140 INFO L226 Difference]: Without dead ends: 13837 [2022-11-23 14:46:22,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=247, Invalid=565, Unknown=0, NotChecked=0, Total=812 [2022-11-23 14:46:22,141 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 297 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:22,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 385 Invalid, 2936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 14:46:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13837 states. [2022-11-23 14:46:22,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13837 to 11042. [2022-11-23 14:46:22,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11042 states, 10999 states have (on average 2.1036457859805435) internal successors, (23138), 11041 states have internal predecessors, (23138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:22,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11042 states to 11042 states and 23138 transitions. [2022-11-23 14:46:22,314 INFO L78 Accepts]: Start accepts. Automaton has 11042 states and 23138 transitions. Word has length 31 [2022-11-23 14:46:22,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:22,315 INFO L495 AbstractCegarLoop]: Abstraction has 11042 states and 23138 transitions. [2022-11-23 14:46:22,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 11042 states and 23138 transitions. [2022-11-23 14:46:22,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:46:22,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:22,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:22,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:22,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:22,518 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:46:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:22,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1910605290, now seen corresponding path program 29 times [2022-11-23 14:46:22,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:46:22,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542428841] [2022-11-23 14:46:22,519 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:46:22,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:22,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:46:22,520 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:46:22,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-23 14:46:22,869 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:46:22,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:46:22,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-23 14:46:22,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:22,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:22,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:46:22,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:22,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:46:22,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:46:23,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:46:23,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:46:23,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:46:23,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:46:23,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:46:23,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:23,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:23,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:23,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:46:23,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:46:23,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:46:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:23,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:23,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:23,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:23,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:23,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,957 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:46:23,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:24,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:46:24,014 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:46:24,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542428841] [2022-11-23 14:46:24,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542428841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:24,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:24,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:46:24,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115617065] [2022-11-23 14:46:24,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:24,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:46:24,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:46:24,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:46:24,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:46:24,015 INFO L87 Difference]: Start difference. First operand 11042 states and 23138 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:29,804 INFO L93 Difference]: Finished difference Result 13641 states and 28465 transitions. [2022-11-23 14:46:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:46:29,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:46:29,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:29,827 INFO L225 Difference]: With dead ends: 13641 [2022-11-23 14:46:29,827 INFO L226 Difference]: Without dead ends: 13641 [2022-11-23 14:46:29,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:46:29,827 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 299 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:29,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 329 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 14:46:29,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13641 states. [2022-11-23 14:46:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13641 to 11065. [2022-11-23 14:46:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11065 states, 11022 states have (on average 2.103429504627109) internal successors, (23184), 11064 states have internal predecessors, (23184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11065 states to 11065 states and 23184 transitions. [2022-11-23 14:46:29,996 INFO L78 Accepts]: Start accepts. Automaton has 11065 states and 23184 transitions. Word has length 31 [2022-11-23 14:46:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:29,997 INFO L495 AbstractCegarLoop]: Abstraction has 11065 states and 23184 transitions. [2022-11-23 14:46:29,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 11065 states and 23184 transitions. [2022-11-23 14:46:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:46:30,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:30,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:30,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:30,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:30,216 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:46:30,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:30,216 INFO L85 PathProgramCache]: Analyzing trace with hash -522307302, now seen corresponding path program 30 times [2022-11-23 14:46:30,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:46:30,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294712970] [2022-11-23 14:46:30,217 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:46:30,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:30,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:46:30,218 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:46:30,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-23 14:46:30,563 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:46:30,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:46:30,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:46:30,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:30,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:30,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:46:30,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:30,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:46:30,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:46:30,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:46:30,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:46:30,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:46:30,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:46:31,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:46:31,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:31,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:31,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:46:31,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:46:31,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:46:31,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:31,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:46:31,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:31,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:31,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:31,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:46:31,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:31,675 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:46:31,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:31,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:46:31,734 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:46:31,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294712970] [2022-11-23 14:46:31,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294712970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:31,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:31,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:46:31,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228774793] [2022-11-23 14:46:31,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:31,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:46:31,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:46:31,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:46:31,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:46:31,736 INFO L87 Difference]: Start difference. First operand 11065 states and 23184 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:39,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:39,630 INFO L93 Difference]: Finished difference Result 13700 states and 28584 transitions. [2022-11-23 14:46:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:46:39,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:46:39,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:39,653 INFO L225 Difference]: With dead ends: 13700 [2022-11-23 14:46:39,653 INFO L226 Difference]: Without dead ends: 13700 [2022-11-23 14:46:39,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:46:39,653 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 274 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:39,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 380 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-23 14:46:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13700 states. [2022-11-23 14:46:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13700 to 11054. [2022-11-23 14:46:39,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 11011 states have (on average 2.103532830805558) internal successors, (23162), 11053 states have internal predecessors, (23162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:39,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 23162 transitions. [2022-11-23 14:46:39,813 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 23162 transitions. Word has length 31 [2022-11-23 14:46:39,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:39,814 INFO L495 AbstractCegarLoop]: Abstraction has 11054 states and 23162 transitions. [2022-11-23 14:46:39,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 23162 transitions. [2022-11-23 14:46:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:46:39,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:39,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:39,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:40,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:40,017 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:46:40,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:40,018 INFO L85 PathProgramCache]: Analyzing trace with hash -842422818, now seen corresponding path program 31 times [2022-11-23 14:46:40,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:46:40,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969136061] [2022-11-23 14:46:40,018 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:46:40,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:40,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:46:40,019 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:46:40,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-23 14:46:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:40,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:46:40,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:40,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:46:40,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:46:40,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:46:40,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:46:40,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:46:40,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:46:40,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:46:40,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:40,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:40,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:40,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:46:40,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:46:40,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:40,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:46:41,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:46:41,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:46:41,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:46:41,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:41,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:41,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:46:41,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:46:41,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:41,472 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:46:41,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:41,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:41,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:46:41,545 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:46:41,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969136061] [2022-11-23 14:46:41,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969136061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:41,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:41,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:46:41,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521003091] [2022-11-23 14:46:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:41,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:46:41,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:46:41,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:46:41,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:46:41,546 INFO L87 Difference]: Start difference. First operand 11054 states and 23162 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:49,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:49,981 INFO L93 Difference]: Finished difference Result 13806 states and 28796 transitions. [2022-11-23 14:46:49,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 14:46:49,981 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:46:49,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:50,003 INFO L225 Difference]: With dead ends: 13806 [2022-11-23 14:46:50,003 INFO L226 Difference]: Without dead ends: 13806 [2022-11-23 14:46:50,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:46:50,003 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 273 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:50,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 380 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 14:46:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2022-11-23 14:46:50,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 11043. [2022-11-23 14:46:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11043 states, 11000 states have (on average 2.1036363636363635) internal successors, (23140), 11042 states have internal predecessors, (23140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:50,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11043 states to 11043 states and 23140 transitions. [2022-11-23 14:46:50,169 INFO L78 Accepts]: Start accepts. Automaton has 11043 states and 23140 transitions. Word has length 31 [2022-11-23 14:46:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:50,170 INFO L495 AbstractCegarLoop]: Abstraction has 11043 states and 23140 transitions. [2022-11-23 14:46:50,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 11043 states and 23140 transitions. [2022-11-23 14:46:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:46:50,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:50,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:50,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:50,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:50,373 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:46:50,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:50,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1324406892, now seen corresponding path program 32 times [2022-11-23 14:46:50,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:46:50,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531482582] [2022-11-23 14:46:50,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:46:50,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:50,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:46:50,375 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:46:50,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-23 14:46:50,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:46:50,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:46:50,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-23 14:46:50,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:50,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:50,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:46:50,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:50,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:46:50,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:46:50,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:46:51,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:46:51,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:46:51,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:46:51,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:46:51,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:51,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:51,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:51,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:46:51,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:46:51,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:46:51,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:51,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:51,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:51,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:51,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:46:51,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:51,946 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:46:51,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:46:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:52,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:46:52,013 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:46:52,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531482582] [2022-11-23 14:46:52,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531482582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:52,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:52,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:46:52,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76707792] [2022-11-23 14:46:52,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:52,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:46:52,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:46:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:46:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:46:52,014 INFO L87 Difference]: Start difference. First operand 11043 states and 23140 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:58,762 INFO L93 Difference]: Finished difference Result 13585 states and 28353 transitions. [2022-11-23 14:46:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:46:58,763 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:46:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:58,786 INFO L225 Difference]: With dead ends: 13585 [2022-11-23 14:46:58,786 INFO L226 Difference]: Without dead ends: 13585 [2022-11-23 14:46:58,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:46:58,787 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 267 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:58,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 375 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 14:46:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13585 states. [2022-11-23 14:46:58,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13585 to 11056. [2022-11-23 14:46:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11056 states, 11013 states have (on average 2.103514028874966) internal successors, (23166), 11055 states have internal predecessors, (23166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11056 states to 11056 states and 23166 transitions. [2022-11-23 14:46:58,956 INFO L78 Accepts]: Start accepts. Automaton has 11056 states and 23166 transitions. Word has length 31 [2022-11-23 14:46:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:58,956 INFO L495 AbstractCegarLoop]: Abstraction has 11056 states and 23166 transitions. [2022-11-23 14:46:58,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:46:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 11056 states and 23166 transitions. [2022-11-23 14:46:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:46:58,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:58,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:58,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:59,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:59,160 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:46:59,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:59,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1108505700, now seen corresponding path program 33 times [2022-11-23 14:46:59,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:46:59,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810791639] [2022-11-23 14:46:59,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:46:59,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:46:59,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:46:59,161 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:46:59,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-23 14:46:59,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:46:59,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:46:59,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:46:59,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:59,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:59,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:46:59,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:59,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:46:59,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:46:59,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:46:59,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:46:59,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:46:59,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:47:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:47:00,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:47:00,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:47:00,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:47:00,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:47:00,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:47:00,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:47:00,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:47:00,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:47:00,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:47:00,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:47:00,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:47:00,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:47:00,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:00,646 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:00,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:47:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:47:00,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:00,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:47:00,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810791639] [2022-11-23 14:47:00,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810791639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:00,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:00,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:47:00,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975262443] [2022-11-23 14:47:00,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:00,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:47:00,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:47:00,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:47:00,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:47:00,705 INFO L87 Difference]: Start difference. First operand 11056 states and 23166 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:07,942 INFO L93 Difference]: Finished difference Result 13629 states and 28442 transitions. [2022-11-23 14:47:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:47:07,943 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:47:07,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:07,966 INFO L225 Difference]: With dead ends: 13629 [2022-11-23 14:47:07,966 INFO L226 Difference]: Without dead ends: 13629 [2022-11-23 14:47:07,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:47:07,967 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 303 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:07,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 377 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 14:47:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13629 states. [2022-11-23 14:47:08,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13629 to 11045. [2022-11-23 14:47:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11045 states, 11002 states have (on average 2.1036175240865296) internal successors, (23144), 11044 states have internal predecessors, (23144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:08,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 23144 transitions. [2022-11-23 14:47:08,199 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 23144 transitions. Word has length 31 [2022-11-23 14:47:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:08,199 INFO L495 AbstractCegarLoop]: Abstraction has 11045 states and 23144 transitions. [2022-11-23 14:47:08,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 23144 transitions. [2022-11-23 14:47:08,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:47:08,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:08,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:08,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:08,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:08,417 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:47:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1240859800, now seen corresponding path program 10 times [2022-11-23 14:47:08,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:47:08,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821454880] [2022-11-23 14:47:08,418 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:47:08,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:08,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:47:08,419 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:47:08,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-23 14:47:08,791 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:47:08,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:47:08,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-23 14:47:08,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:08,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:08,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:47:08,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:08,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:47:08,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:47:09,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:47:09,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:47:09,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:47:09,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:47:09,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:47:09,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:47:09,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:09,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:09,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:09,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:09,862 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:09,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:47:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:47:09,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:09,951 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:47:09,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821454880] [2022-11-23 14:47:09,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821454880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:09,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:09,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:47:09,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838971517] [2022-11-23 14:47:09,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:09,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:47:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:47:09,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:47:09,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:47:09,952 INFO L87 Difference]: Start difference. First operand 11045 states and 23144 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:18,686 INFO L93 Difference]: Finished difference Result 14284 states and 29651 transitions. [2022-11-23 14:47:18,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:47:18,687 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:47:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:18,709 INFO L225 Difference]: With dead ends: 14284 [2022-11-23 14:47:18,709 INFO L226 Difference]: Without dead ends: 14284 [2022-11-23 14:47:18,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2022-11-23 14:47:18,710 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 596 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 3163 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 3163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:18,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 823 Invalid, 3298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 3163 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-23 14:47:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14284 states. [2022-11-23 14:47:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14284 to 11395. [2022-11-23 14:47:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11395 states, 11352 states have (on average 2.102272727272727) internal successors, (23865), 11394 states have internal predecessors, (23865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:18,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11395 states to 11395 states and 23865 transitions. [2022-11-23 14:47:18,928 INFO L78 Accepts]: Start accepts. Automaton has 11395 states and 23865 transitions. Word has length 31 [2022-11-23 14:47:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:18,928 INFO L495 AbstractCegarLoop]: Abstraction has 11395 states and 23865 transitions. [2022-11-23 14:47:18,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 11395 states and 23865 transitions. [2022-11-23 14:47:18,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:47:18,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:18,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:18,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:19,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:19,134 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:47:19,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:19,135 INFO L85 PathProgramCache]: Analyzing trace with hash -44731731, now seen corresponding path program 10 times [2022-11-23 14:47:19,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:47:19,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964042944] [2022-11-23 14:47:19,135 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:47:19,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:19,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:47:19,136 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:47:19,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-23 14:47:19,497 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:47:19,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:47:19,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:47:19,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:19,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:19,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:47:19,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:19,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:47:19,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:47:19,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:47:19,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:47:20,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:47:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:47:20,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,257 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:20,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 36 [2022-11-23 14:47:20,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,311 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:20,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:47:20,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:20,376 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:20,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:47:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:47:20,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:20,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:47:20,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964042944] [2022-11-23 14:47:20,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964042944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:20,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:20,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:47:20,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58104228] [2022-11-23 14:47:20,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:20,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:47:20,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:47:20,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:47:20,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:47:20,438 INFO L87 Difference]: Start difference. First operand 11395 states and 23865 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:28,610 INFO L93 Difference]: Finished difference Result 13869 states and 28808 transitions. [2022-11-23 14:47:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 14:47:28,610 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:47:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:28,629 INFO L225 Difference]: With dead ends: 13869 [2022-11-23 14:47:28,629 INFO L226 Difference]: Without dead ends: 13869 [2022-11-23 14:47:28,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 14:47:28,630 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 503 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 3165 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 3357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 3165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:28,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1035 Invalid, 3357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 3165 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-23 14:47:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13869 states. [2022-11-23 14:47:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13869 to 11104. [2022-11-23 14:47:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11104 states, 11061 states have (on average 2.10405930747672) internal successors, (23273), 11103 states have internal predecessors, (23273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11104 states to 11104 states and 23273 transitions. [2022-11-23 14:47:28,799 INFO L78 Accepts]: Start accepts. Automaton has 11104 states and 23273 transitions. Word has length 31 [2022-11-23 14:47:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:28,799 INFO L495 AbstractCegarLoop]: Abstraction has 11104 states and 23273 transitions. [2022-11-23 14:47:28,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 11104 states and 23273 transitions. [2022-11-23 14:47:28,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:47:28,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:28,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:28,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:29,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:29,002 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:47:29,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:29,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1059975278, now seen corresponding path program 11 times [2022-11-23 14:47:29,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:47:29,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238331816] [2022-11-23 14:47:29,003 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:47:29,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:29,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:47:29,004 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:47:29,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-23 14:47:29,369 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:47:29,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:47:29,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-23 14:47:29,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:29,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:29,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:47:29,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:29,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:47:29,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:47:29,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:29,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:47:30,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:47:30,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:47:30,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:47:30,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:47:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:30,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:30,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:30,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:30,646 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:30,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:47:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:47:30,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:30,758 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:47:30,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238331816] [2022-11-23 14:47:30,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238331816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:30,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:30,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:47:30,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001882916] [2022-11-23 14:47:30,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:30,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:47:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:47:30,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:47:30,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:47:30,760 INFO L87 Difference]: Start difference. First operand 11104 states and 23273 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:39,744 INFO L93 Difference]: Finished difference Result 15649 states and 32488 transitions. [2022-11-23 14:47:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:47:39,745 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:47:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:39,769 INFO L225 Difference]: With dead ends: 15649 [2022-11-23 14:47:39,770 INFO L226 Difference]: Without dead ends: 15649 [2022-11-23 14:47:39,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 14:47:39,770 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 653 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 2878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:39,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 930 Invalid, 2878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-23 14:47:39,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15649 states. [2022-11-23 14:47:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15649 to 13215. [2022-11-23 14:47:39,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13215 states, 13172 states have (on average 2.1087154570300637) internal successors, (27776), 13214 states have internal predecessors, (27776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13215 states to 13215 states and 27776 transitions. [2022-11-23 14:47:39,983 INFO L78 Accepts]: Start accepts. Automaton has 13215 states and 27776 transitions. Word has length 31 [2022-11-23 14:47:39,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:39,983 INFO L495 AbstractCegarLoop]: Abstraction has 13215 states and 27776 transitions. [2022-11-23 14:47:39,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:39,983 INFO L276 IsEmpty]: Start isEmpty. Operand 13215 states and 27776 transitions. [2022-11-23 14:47:39,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:47:39,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:39,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:39,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:40,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:40,188 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:47:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash 794479808, now seen corresponding path program 12 times [2022-11-23 14:47:40,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:47:40,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962333413] [2022-11-23 14:47:40,188 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:47:40,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:40,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:47:40,190 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:47:40,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-11-23 14:47:40,565 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:47:40,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:47:40,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-23 14:47:40,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:40,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:40,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:47:40,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:40,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:47:40,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:47:41,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:47:41,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:47:41,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:47:41,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:47:41,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:47:41,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:47:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:41,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:41,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:41,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:41,623 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:41,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:47:41,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:47:41,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:41,714 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:47:41,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962333413] [2022-11-23 14:47:41,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962333413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:41,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:41,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:47:41,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535604378] [2022-11-23 14:47:41,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:41,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:47:41,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:47:41,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:47:41,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:47:41,715 INFO L87 Difference]: Start difference. First operand 13215 states and 27776 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:49,284 INFO L93 Difference]: Finished difference Result 15723 states and 32877 transitions. [2022-11-23 14:47:49,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:47:49,285 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:47:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:49,309 INFO L225 Difference]: With dead ends: 15723 [2022-11-23 14:47:49,310 INFO L226 Difference]: Without dead ends: 15723 [2022-11-23 14:47:49,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:47:49,310 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 537 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:49,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 706 Invalid, 2721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 14:47:49,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15723 states. [2022-11-23 14:47:49,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15723 to 13217. [2022-11-23 14:47:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13217 states, 13174 states have (on average 2.108698952482162) internal successors, (27780), 13216 states have internal predecessors, (27780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13217 states to 13217 states and 27780 transitions. [2022-11-23 14:47:49,514 INFO L78 Accepts]: Start accepts. Automaton has 13217 states and 27780 transitions. Word has length 31 [2022-11-23 14:47:49,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:49,514 INFO L495 AbstractCegarLoop]: Abstraction has 13217 states and 27780 transitions. [2022-11-23 14:47:49,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:47:49,514 INFO L276 IsEmpty]: Start isEmpty. Operand 13217 states and 27780 transitions. [2022-11-23 14:47:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:47:49,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:49,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:47:49,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:49,721 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:47:49,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:49,721 INFO L85 PathProgramCache]: Analyzing trace with hash 806155958, now seen corresponding path program 13 times [2022-11-23 14:47:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:47:49,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151086190] [2022-11-23 14:47:49,722 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:47:49,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:47:49,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:47:49,723 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:47:49,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-23 14:47:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:50,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:47:50,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:50,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:50,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:47:50,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:50,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:47:50,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:47:50,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:47:50,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:47:50,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:47:50,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:47:50,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:47:51,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:47:51,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:51,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:51,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:51,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:51,264 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:47:51,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:47:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:47:51,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:47:51,353 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:47:51,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151086190] [2022-11-23 14:47:51,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151086190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:51,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:47:51,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:47:51,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366608825] [2022-11-23 14:47:51,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:51,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:47:51,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:47:51,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:47:51,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:47:51,354 INFO L87 Difference]: Start difference. First operand 13217 states and 27780 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:00,433 INFO L93 Difference]: Finished difference Result 15767 states and 32963 transitions. [2022-11-23 14:48:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:48:00,434 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:48:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:00,459 INFO L225 Difference]: With dead ends: 15767 [2022-11-23 14:48:00,459 INFO L226 Difference]: Without dead ends: 15767 [2022-11-23 14:48:00,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2022-11-23 14:48:00,460 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 534 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 3295 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 3344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:00,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 788 Invalid, 3344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3295 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-23 14:48:00,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15767 states. [2022-11-23 14:48:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15767 to 13213. [2022-11-23 14:48:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13213 states, 13170 states have (on average 2.1084282460136676) internal successors, (27768), 13212 states have internal predecessors, (27768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13213 states to 13213 states and 27768 transitions. [2022-11-23 14:48:00,669 INFO L78 Accepts]: Start accepts. Automaton has 13213 states and 27768 transitions. Word has length 31 [2022-11-23 14:48:00,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:00,670 INFO L495 AbstractCegarLoop]: Abstraction has 13213 states and 27768 transitions. [2022-11-23 14:48:00,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 13213 states and 27768 transitions. [2022-11-23 14:48:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:48:00,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:00,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:00,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:00,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:00,874 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:48:00,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:00,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1518432250, now seen corresponding path program 14 times [2022-11-23 14:48:00,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:00,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81461154] [2022-11-23 14:48:00,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:48:00,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:00,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:00,875 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:00,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-23 14:48:01,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:48:01,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:48:01,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:48:01,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:01,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:48:01,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:01,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:48:01,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:48:01,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:48:01,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:48:01,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:48:01,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:48:02,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:48:02,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:48:02,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:02,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:02,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:02,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:02,274 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:48:02,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:48:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:02,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:02,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:02,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81461154] [2022-11-23 14:48:02,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81461154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:02,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:02,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:48:02,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066816803] [2022-11-23 14:48:02,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:02,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:48:02,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:48:02,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:48:02,363 INFO L87 Difference]: Start difference. First operand 13213 states and 27768 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:09,140 INFO L93 Difference]: Finished difference Result 15852 states and 33123 transitions. [2022-11-23 14:48:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:48:09,141 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:48:09,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:09,165 INFO L225 Difference]: With dead ends: 15852 [2022-11-23 14:48:09,165 INFO L226 Difference]: Without dead ends: 15852 [2022-11-23 14:48:09,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2022-11-23 14:48:09,165 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 412 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:09,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 983 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-23 14:48:09,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15852 states. [2022-11-23 14:48:09,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15852 to 13146. [2022-11-23 14:48:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13146 states, 13103 states have (on average 2.1082194917194537) internal successors, (27624), 13145 states have internal predecessors, (27624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:09,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13146 states to 13146 states and 27624 transitions. [2022-11-23 14:48:09,376 INFO L78 Accepts]: Start accepts. Automaton has 13146 states and 27624 transitions. Word has length 31 [2022-11-23 14:48:09,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:09,376 INFO L495 AbstractCegarLoop]: Abstraction has 13146 states and 27624 transitions. [2022-11-23 14:48:09,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:09,377 INFO L276 IsEmpty]: Start isEmpty. Operand 13146 states and 27624 transitions. [2022-11-23 14:48:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:48:09,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:09,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:09,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:09,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:09,580 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:48:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 577187681, now seen corresponding path program 11 times [2022-11-23 14:48:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:09,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027769718] [2022-11-23 14:48:09,581 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:48:09,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:09,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:09,582 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:09,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-23 14:48:10,010 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:48:10,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:48:10,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-23 14:48:10,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:10,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:48:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:48:10,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:48:10,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:48:10,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:48:10,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:48:10,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:48:10,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:48:10,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:48:10,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:10,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:11,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:11,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:11,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:11,201 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:48:11,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-23 14:48:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:11,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:11,269 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:11,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027769718] [2022-11-23 14:48:11,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027769718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:11,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:11,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:48:11,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366937957] [2022-11-23 14:48:11,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:11,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:48:11,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:11,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:48:11,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:48:11,270 INFO L87 Difference]: Start difference. First operand 13146 states and 27624 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:19,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:19,279 INFO L93 Difference]: Finished difference Result 14870 states and 31126 transitions. [2022-11-23 14:48:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 14:48:19,281 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:48:19,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:19,304 INFO L225 Difference]: With dead ends: 14870 [2022-11-23 14:48:19,304 INFO L226 Difference]: Without dead ends: 14870 [2022-11-23 14:48:19,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=415, Invalid=917, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 14:48:19,304 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 427 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:19,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 361 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 14:48:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14870 states. [2022-11-23 14:48:19,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14870 to 13144. [2022-11-23 14:48:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13144 states, 13101 states have (on average 2.1082360125181285) internal successors, (27620), 13143 states have internal predecessors, (27620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13144 states to 13144 states and 27620 transitions. [2022-11-23 14:48:19,503 INFO L78 Accepts]: Start accepts. Automaton has 13144 states and 27620 transitions. Word has length 31 [2022-11-23 14:48:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:19,503 INFO L495 AbstractCegarLoop]: Abstraction has 13144 states and 27620 transitions. [2022-11-23 14:48:19,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 13144 states and 27620 transitions. [2022-11-23 14:48:19,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:48:19,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:19,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:19,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:19,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:19,710 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:48:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:19,711 INFO L85 PathProgramCache]: Analyzing trace with hash 619200097, now seen corresponding path program 12 times [2022-11-23 14:48:19,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:19,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830987178] [2022-11-23 14:48:19,711 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:48:19,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:19,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:19,712 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:19,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-23 14:48:20,102 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:48:20,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:48:20,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-23 14:48:20,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:20,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:20,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:48:20,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:20,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:48:20,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:48:20,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:48:20,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:20,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:48:20,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:20,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:20,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:48:20,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:20,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:48:21,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:48:21,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:21,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:21,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:21,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:21,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:48:21,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:21,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:21,482 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:21,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830987178] [2022-11-23 14:48:21,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830987178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:21,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:21,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:48:21,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843783859] [2022-11-23 14:48:21,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:21,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:48:21,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:48:21,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:48:21,483 INFO L87 Difference]: Start difference. First operand 13144 states and 27620 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:31,472 INFO L93 Difference]: Finished difference Result 16120 states and 33641 transitions. [2022-11-23 14:48:31,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 14:48:31,473 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:48:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:31,497 INFO L225 Difference]: With dead ends: 16120 [2022-11-23 14:48:31,497 INFO L226 Difference]: Without dead ends: 16120 [2022-11-23 14:48:31,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=320, Invalid=940, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 14:48:31,497 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 554 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 2867 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:31,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 649 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2867 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-23 14:48:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16120 states. [2022-11-23 14:48:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16120 to 13550. [2022-11-23 14:48:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13550 states, 13507 states have (on average 2.1073517435403866) internal successors, (28464), 13549 states have internal predecessors, (28464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:31,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 28464 transitions. [2022-11-23 14:48:31,691 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 28464 transitions. Word has length 31 [2022-11-23 14:48:31,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:31,691 INFO L495 AbstractCegarLoop]: Abstraction has 13550 states and 28464 transitions. [2022-11-23 14:48:31,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:31,692 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 28464 transitions. [2022-11-23 14:48:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:48:31,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:31,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:31,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:31,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:31,895 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:48:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:31,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1279290715, now seen corresponding path program 13 times [2022-11-23 14:48:31,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:31,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017548370] [2022-11-23 14:48:31,896 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:48:31,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:31,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:31,897 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:31,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-23 14:48:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:48:32,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-23 14:48:32,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:32,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:32,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:48:32,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:32,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:48:32,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:48:32,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:48:32,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:32,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:48:32,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:48:32,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:48:33,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:48:33,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:48:33,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:33,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:33,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:33,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:33,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:33,411 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:48:33,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-23 14:48:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:33,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:33,470 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:33,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017548370] [2022-11-23 14:48:33,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017548370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:33,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:33,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:48:33,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543716249] [2022-11-23 14:48:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:33,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:48:33,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:48:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:48:33,471 INFO L87 Difference]: Start difference. First operand 13550 states and 28464 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:41,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:41,279 INFO L93 Difference]: Finished difference Result 15427 states and 32277 transitions. [2022-11-23 14:48:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-23 14:48:41,280 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:48:41,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:41,305 INFO L225 Difference]: With dead ends: 15427 [2022-11-23 14:48:41,305 INFO L226 Difference]: Without dead ends: 15427 [2022-11-23 14:48:41,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 14:48:41,306 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 548 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:41,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 427 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-23 14:48:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15427 states. [2022-11-23 14:48:41,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15427 to 13594. [2022-11-23 14:48:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13594 states, 13551 states have (on average 2.10700317319755) internal successors, (28552), 13593 states have internal predecessors, (28552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:41,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13594 states to 13594 states and 28552 transitions. [2022-11-23 14:48:41,512 INFO L78 Accepts]: Start accepts. Automaton has 13594 states and 28552 transitions. Word has length 31 [2022-11-23 14:48:41,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:41,512 INFO L495 AbstractCegarLoop]: Abstraction has 13594 states and 28552 transitions. [2022-11-23 14:48:41,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:41,512 INFO L276 IsEmpty]: Start isEmpty. Operand 13594 states and 28552 transitions. [2022-11-23 14:48:41,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:48:41,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:41,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:41,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:41,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:41,716 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:48:41,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash -445862883, now seen corresponding path program 14 times [2022-11-23 14:48:41,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:41,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378512805] [2022-11-23 14:48:41,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:48:41,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:41,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:41,718 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:41,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-11-23 14:48:42,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:48:42,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:48:42,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-23 14:48:42,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:42,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:48:42,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:48:42,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:48:42,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:48:42,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:48:42,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2022-11-23 14:48:42,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:48:42,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:48:42,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:42,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:48:43,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:43,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:43,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:43,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:43,307 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:48:43,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2022-11-23 14:48:43,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:43,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:43,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:43,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378512805] [2022-11-23 14:48:43,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378512805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:43,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:43,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 14:48:43,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063199861] [2022-11-23 14:48:43,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:43,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 14:48:43,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:43,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 14:48:43,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:48:43,371 INFO L87 Difference]: Start difference. First operand 13594 states and 28552 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:50,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:50,613 INFO L93 Difference]: Finished difference Result 15439 states and 32294 transitions. [2022-11-23 14:48:50,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 14:48:50,618 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:48:50,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:50,642 INFO L225 Difference]: With dead ends: 15439 [2022-11-23 14:48:50,642 INFO L226 Difference]: Without dead ends: 15439 [2022-11-23 14:48:50,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:48:50,643 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 562 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:50,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 427 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-23 14:48:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15439 states. [2022-11-23 14:48:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15439 to 13556. [2022-11-23 14:48:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13556 states, 13513 states have (on average 2.1070820691186265) internal successors, (28473), 13555 states have internal predecessors, (28473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 28473 transitions. [2022-11-23 14:48:50,902 INFO L78 Accepts]: Start accepts. Automaton has 13556 states and 28473 transitions. Word has length 31 [2022-11-23 14:48:50,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:50,902 INFO L495 AbstractCegarLoop]: Abstraction has 13556 states and 28473 transitions. [2022-11-23 14:48:50,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 13556 states and 28473 transitions. [2022-11-23 14:48:50,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:48:50,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:50,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:50,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Ended with exit code 0 [2022-11-23 14:48:51,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:51,106 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:48:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:51,107 INFO L85 PathProgramCache]: Analyzing trace with hash 994689566, now seen corresponding path program 34 times [2022-11-23 14:48:51,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:51,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493579904] [2022-11-23 14:48:51,107 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:48:51,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:51,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:51,109 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:51,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-23 14:48:51,515 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:48:51,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:48:51,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:48:51,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:51,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:51,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:48:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:51,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:48:51,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:48:51,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:48:51,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:48:51,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:48:51,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:48:52,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:48:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:52,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:52,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:52,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:52,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:48:52,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:48:52,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:48:52,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:52,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:52,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:52,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:52,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:48:52,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:52,792 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:48:52,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:48:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:48:52,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:48:52,851 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:48:52,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493579904] [2022-11-23 14:48:52,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493579904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:48:52,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:48:52,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:48:52,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525609177] [2022-11-23 14:48:52,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:48:52,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:48:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:48:52,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:48:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:48:52,852 INFO L87 Difference]: Start difference. First operand 13556 states and 28473 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:58,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:48:58,693 INFO L93 Difference]: Finished difference Result 17282 states and 36076 transitions. [2022-11-23 14:48:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:48:58,694 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:48:58,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:48:58,714 INFO L225 Difference]: With dead ends: 17282 [2022-11-23 14:48:58,715 INFO L226 Difference]: Without dead ends: 17282 [2022-11-23 14:48:58,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:48:58,715 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 275 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:48:58,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 248 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-23 14:48:58,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17282 states. [2022-11-23 14:48:58,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17282 to 13578. [2022-11-23 14:48:58,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13578 states, 13535 states have (on average 2.106908016254156) internal successors, (28517), 13577 states have internal predecessors, (28517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:58,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13578 states to 13578 states and 28517 transitions. [2022-11-23 14:48:58,905 INFO L78 Accepts]: Start accepts. Automaton has 13578 states and 28517 transitions. Word has length 31 [2022-11-23 14:48:58,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:48:58,906 INFO L495 AbstractCegarLoop]: Abstraction has 13578 states and 28517 transitions. [2022-11-23 14:48:58,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:48:58,906 INFO L276 IsEmpty]: Start isEmpty. Operand 13578 states and 28517 transitions. [2022-11-23 14:48:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:48:58,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:48:58,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:48:58,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2022-11-23 14:48:59,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:59,109 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:48:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:48:59,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1438223026, now seen corresponding path program 35 times [2022-11-23 14:48:59,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:48:59,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365156422] [2022-11-23 14:48:59,111 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:48:59,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:48:59,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:48:59,112 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:48:59,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-23 14:48:59,509 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:48:59,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:48:59,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:48:59,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:48:59,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:48:59,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:48:59,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:48:59,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:48:59,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:48:59,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:48:59,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:48:59,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:48:59,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:48:59,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:00,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:00,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:00,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:49:00,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:49:00,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:49:00,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:00,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:49:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:00,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:00,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:00,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:49:00,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:00,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:49:00,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:00,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:00,589 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:00,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365156422] [2022-11-23 14:49:00,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365156422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:00,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:00,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:49:00,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625974385] [2022-11-23 14:49:00,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:00,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:49:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:00,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:49:00,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:49:00,590 INFO L87 Difference]: Start difference. First operand 13578 states and 28517 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:08,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:08,522 INFO L93 Difference]: Finished difference Result 17341 states and 36195 transitions. [2022-11-23 14:49:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:49:08,522 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:49:08,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:08,545 INFO L225 Difference]: With dead ends: 17341 [2022-11-23 14:49:08,545 INFO L226 Difference]: Without dead ends: 17341 [2022-11-23 14:49:08,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:49:08,546 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 229 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 3016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:08,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 304 Invalid, 3016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-23 14:49:08,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17341 states. [2022-11-23 14:49:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17341 to 13567. [2022-11-23 14:49:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13567 states, 13524 states have (on average 2.106994971901804) internal successors, (28495), 13566 states have internal predecessors, (28495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:08,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13567 states to 13567 states and 28495 transitions. [2022-11-23 14:49:08,735 INFO L78 Accepts]: Start accepts. Automaton has 13567 states and 28495 transitions. Word has length 31 [2022-11-23 14:49:08,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:08,735 INFO L495 AbstractCegarLoop]: Abstraction has 13567 states and 28495 transitions. [2022-11-23 14:49:08,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 13567 states and 28495 transitions. [2022-11-23 14:49:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:49:08,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:08,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:08,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:08,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:08,938 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:49:08,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:08,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1758338542, now seen corresponding path program 36 times [2022-11-23 14:49:08,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:08,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176257502] [2022-11-23 14:49:08,939 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:49:08,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:08,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:08,940 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:08,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-23 14:49:09,342 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:49:09,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:49:09,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:49:09,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:49:09,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:49:09,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:49:09,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:49:09,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:49:09,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:49:09,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:49:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:09,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:09,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:09,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:49:09,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:49:09,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:49:09,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:09,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:10,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:49:10,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:49:10,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:10,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:10,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:10,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:49:10,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:10,396 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:49:10,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:10,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:10,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:10,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176257502] [2022-11-23 14:49:10,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176257502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:10,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:10,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:49:10,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000848218] [2022-11-23 14:49:10,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:10,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:49:10,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:10,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:49:10,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:49:10,456 INFO L87 Difference]: Start difference. First operand 13567 states and 28495 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:18,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:18,330 INFO L93 Difference]: Finished difference Result 17395 states and 36303 transitions. [2022-11-23 14:49:18,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 14:49:18,331 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:49:18,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:18,357 INFO L225 Difference]: With dead ends: 17395 [2022-11-23 14:49:18,357 INFO L226 Difference]: Without dead ends: 17395 [2022-11-23 14:49:18,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:49:18,358 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 346 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:18,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 259 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 14:49:18,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17395 states. [2022-11-23 14:49:18,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17395 to 13556. [2022-11-23 14:49:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13556 states, 13513 states have (on average 2.1070820691186265) internal successors, (28473), 13555 states have internal predecessors, (28473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 28473 transitions. [2022-11-23 14:49:18,556 INFO L78 Accepts]: Start accepts. Automaton has 13556 states and 28473 transitions. Word has length 31 [2022-11-23 14:49:18,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:18,556 INFO L495 AbstractCegarLoop]: Abstraction has 13556 states and 28473 transitions. [2022-11-23 14:49:18,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:18,556 INFO L276 IsEmpty]: Start isEmpty. Operand 13556 states and 28473 transitions. [2022-11-23 14:49:18,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:49:18,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:18,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:18,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:18,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:18,762 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:49:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:18,762 INFO L85 PathProgramCache]: Analyzing trace with hash -5523154, now seen corresponding path program 37 times [2022-11-23 14:49:18,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:18,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355470009] [2022-11-23 14:49:18,763 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:49:18,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:18,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:18,770 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:18,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-23 14:49:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:19,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-23 14:49:19,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:19,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:49:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:49:19,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:49:19,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:49:19,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:49:19,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2022-11-23 14:49:19,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:49:19,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:49:19,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:49:19,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:49:19,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:49:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-23 14:49:19,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2022-11-23 14:49:19,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:49:19,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:49:19,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:49:19,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:19,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:19,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:19,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:19,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:49:20,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:20,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:20,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:20,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:20,060 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:49:20,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:20,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:20,113 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:20,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355470009] [2022-11-23 14:49:20,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355470009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:20,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:20,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:49:20,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568730738] [2022-11-23 14:49:20,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:20,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:49:20,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:20,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:49:20,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:49:20,114 INFO L87 Difference]: Start difference. First operand 13556 states and 28473 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:26,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:26,754 INFO L93 Difference]: Finished difference Result 17297 states and 36100 transitions. [2022-11-23 14:49:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 14:49:26,755 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:49:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:26,782 INFO L225 Difference]: With dead ends: 17297 [2022-11-23 14:49:26,783 INFO L226 Difference]: Without dead ends: 17297 [2022-11-23 14:49:26,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=249, Invalid=563, Unknown=0, NotChecked=0, Total=812 [2022-11-23 14:49:26,783 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 310 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:26,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 260 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 14:49:26,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17297 states. [2022-11-23 14:49:26,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17297 to 13538. [2022-11-23 14:49:26,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13538 states, 13495 states have (on average 2.1072248981104114) internal successors, (28437), 13537 states have internal predecessors, (28437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13538 states to 13538 states and 28437 transitions. [2022-11-23 14:49:27,020 INFO L78 Accepts]: Start accepts. Automaton has 13538 states and 28437 transitions. Word has length 31 [2022-11-23 14:49:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:27,020 INFO L495 AbstractCegarLoop]: Abstraction has 13538 states and 28437 transitions. [2022-11-23 14:49:27,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:27,020 INFO L276 IsEmpty]: Start isEmpty. Operand 13538 states and 28437 transitions. [2022-11-23 14:49:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:49:27,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:27,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:27,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:27,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:27,223 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:49:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1054088388, now seen corresponding path program 38 times [2022-11-23 14:49:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:27,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364239986] [2022-11-23 14:49:27,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:49:27,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:27,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:27,225 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:27,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-23 14:49:27,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:49:27,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:49:27,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:49:27,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:27,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:27,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:49:27,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:27,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:49:27,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:49:27,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:49:27,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:49:28,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:49:28,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:49:28,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:49:28,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:28,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:28,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:28,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:49:28,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:49:28,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:49:28,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:28,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:28,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:28,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:28,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:28,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:28,900 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:49:28,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:28,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:28,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:28,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364239986] [2022-11-23 14:49:28,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364239986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:28,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:28,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:49:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948377203] [2022-11-23 14:49:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:28,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:49:28,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:28,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:49:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:49:28,971 INFO L87 Difference]: Start difference. First operand 13538 states and 28437 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:36,406 INFO L93 Difference]: Finished difference Result 17734 states and 36991 transitions. [2022-11-23 14:49:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:49:36,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:49:36,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:36,430 INFO L225 Difference]: With dead ends: 17734 [2022-11-23 14:49:36,430 INFO L226 Difference]: Without dead ends: 17734 [2022-11-23 14:49:36,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:49:36,431 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 228 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 2605 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:36,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 296 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2605 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 14:49:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17734 states. [2022-11-23 14:49:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17734 to 13561. [2022-11-23 14:49:36,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13561 states, 13518 states have (on average 2.1070424619026484) internal successors, (28483), 13560 states have internal predecessors, (28483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:36,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13561 states to 13561 states and 28483 transitions. [2022-11-23 14:49:36,676 INFO L78 Accepts]: Start accepts. Automaton has 13561 states and 28483 transitions. Word has length 31 [2022-11-23 14:49:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:36,676 INFO L495 AbstractCegarLoop]: Abstraction has 13561 states and 28483 transitions. [2022-11-23 14:49:36,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 13561 states and 28483 transitions. [2022-11-23 14:49:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:49:36,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:36,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:36,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:36,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:36,879 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:49:36,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 807966316, now seen corresponding path program 39 times [2022-11-23 14:49:36,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:36,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362845969] [2022-11-23 14:49:36,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:49:36,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:36,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:36,882 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:36,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-23 14:49:37,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:49:37,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:49:37,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:49:37,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:49:37,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:49:37,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:49:37,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:49:37,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:49:37,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:49:37,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:49:37,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:49:37,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:37,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:37,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:37,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:49:37,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:37,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:49:38,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:49:38,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:38,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:49:38,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:38,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:38,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:49:38,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:38,374 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:49:38,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:38,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:38,426 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:38,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362845969] [2022-11-23 14:49:38,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362845969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:38,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:38,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:49:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849703325] [2022-11-23 14:49:38,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:38,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:49:38,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:38,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:49:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:49:38,427 INFO L87 Difference]: Start difference. First operand 13561 states and 28483 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:46,555 INFO L93 Difference]: Finished difference Result 17793 states and 37110 transitions. [2022-11-23 14:49:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:49:46,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:49:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:46,578 INFO L225 Difference]: With dead ends: 17793 [2022-11-23 14:49:46,578 INFO L226 Difference]: Without dead ends: 17793 [2022-11-23 14:49:46,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:49:46,579 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 273 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:46,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 256 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 14:49:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17793 states. [2022-11-23 14:49:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17793 to 13550. [2022-11-23 14:49:46,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13550 states, 13507 states have (on average 2.107129636484786) internal successors, (28461), 13549 states have internal predecessors, (28461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:46,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 28461 transitions. [2022-11-23 14:49:46,763 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 28461 transitions. Word has length 31 [2022-11-23 14:49:46,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:46,763 INFO L495 AbstractCegarLoop]: Abstraction has 13550 states and 28461 transitions. [2022-11-23 14:49:46,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:46,764 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 28461 transitions. [2022-11-23 14:49:46,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:49:46,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:46,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:46,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:46,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:46,967 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:49:46,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:46,978 INFO L85 PathProgramCache]: Analyzing trace with hash 487850800, now seen corresponding path program 40 times [2022-11-23 14:49:46,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522049769] [2022-11-23 14:49:46,978 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:49:46,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:46,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:46,984 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:46,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-23 14:49:47,409 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:49:47,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:49:47,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:49:47,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:47,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:49:47,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:49:47,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:49:47,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:49:47,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:49:47,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:49:47,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:49:47,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:47,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:47,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:47,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:49:47,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:49:47,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:47,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:49:48,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:49:48,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:49:48,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:49:48,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:48,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:48,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:49:48,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:49:48,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:48,410 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:49:48,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:48,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:48,462 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:48,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522049769] [2022-11-23 14:49:48,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522049769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:48,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:48,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:49:48,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253974360] [2022-11-23 14:49:48,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:48,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:49:48,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:49:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:49:48,463 INFO L87 Difference]: Start difference. First operand 13550 states and 28461 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:55,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:55,681 INFO L93 Difference]: Finished difference Result 17899 states and 37322 transitions. [2022-11-23 14:49:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 14:49:55,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:49:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:55,706 INFO L225 Difference]: With dead ends: 17899 [2022-11-23 14:49:55,706 INFO L226 Difference]: Without dead ends: 17899 [2022-11-23 14:49:55,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=230, Invalid=526, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:49:55,706 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 303 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:55,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 254 Invalid, 2722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 14:49:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17899 states. [2022-11-23 14:49:55,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17899 to 13539. [2022-11-23 14:49:55,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 13496 states have (on average 2.10721695317131) internal successors, (28439), 13538 states have internal predecessors, (28439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 28439 transitions. [2022-11-23 14:49:55,892 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 28439 transitions. Word has length 31 [2022-11-23 14:49:55,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:55,892 INFO L495 AbstractCegarLoop]: Abstraction has 13539 states and 28439 transitions. [2022-11-23 14:49:55,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:49:55,892 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 28439 transitions. [2022-11-23 14:49:55,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:49:55,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:55,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:55,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:56,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:56,095 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:49:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1640286786, now seen corresponding path program 41 times [2022-11-23 14:49:56,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:49:56,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001031340] [2022-11-23 14:49:56,096 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 14:49:56,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:49:56,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:49:56,097 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:49:56,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2022-11-23 14:49:56,523 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:49:56,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:49:56,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:49:56,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:56,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:56,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:49:56,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:56,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:49:56,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:49:56,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:49:56,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:49:56,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:49:56,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:49:57,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:49:57,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:57,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:57,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:57,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:57,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:49:57,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:49:57,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:49:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:57,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:57,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:57,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:49:57,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:49:57,770 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:49:57,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:49:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:49:57,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:49:57,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:49:57,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001031340] [2022-11-23 14:49:57,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001031340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:57,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:49:57,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:49:57,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940031291] [2022-11-23 14:49:57,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:57,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:49:57,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:49:57,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:49:57,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:49:57,824 INFO L87 Difference]: Start difference. First operand 13539 states and 28439 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:03,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:03,143 INFO L93 Difference]: Finished difference Result 17696 states and 36915 transitions. [2022-11-23 14:50:03,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:50:03,144 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:50:03,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:03,167 INFO L225 Difference]: With dead ends: 17696 [2022-11-23 14:50:03,167 INFO L226 Difference]: Without dead ends: 17696 [2022-11-23 14:50:03,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:50:03,167 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 309 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:03,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 247 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 14:50:03,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17696 states. [2022-11-23 14:50:03,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17696 to 13551. [2022-11-23 14:50:03,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13551 states, 13508 states have (on average 2.1071217056559077) internal successors, (28463), 13550 states have internal predecessors, (28463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 28463 transitions. [2022-11-23 14:50:03,356 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 28463 transitions. Word has length 31 [2022-11-23 14:50:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:03,356 INFO L495 AbstractCegarLoop]: Abstraction has 13551 states and 28463 transitions. [2022-11-23 14:50:03,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 28463 transitions. [2022-11-23 14:50:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:50:03,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:03,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:03,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:03,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:03,560 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:50:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:03,560 INFO L85 PathProgramCache]: Analyzing trace with hash 221767918, now seen corresponding path program 42 times [2022-11-23 14:50:03,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:03,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308271219] [2022-11-23 14:50:03,561 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 14:50:03,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:03,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:03,562 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:03,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-23 14:50:04,021 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-23 14:50:04,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:50:04,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-23 14:50:04,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:04,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:50:04,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:50:04,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:50:04,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:50:04,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:50:04,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:50:04,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:50:04,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:50:04,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:04,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:04,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:04,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:50:04,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:50:04,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:50:04,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:04,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:50:04,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:04,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:04,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:04,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:04,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:50:05,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:05,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:05,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:05,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:05,045 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:50:05,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:05,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:05,098 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:05,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308271219] [2022-11-23 14:50:05,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308271219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:05,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:05,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:50:05,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627398073] [2022-11-23 14:50:05,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:05,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:50:05,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:05,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:50:05,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:50:05,099 INFO L87 Difference]: Start difference. First operand 13551 states and 28463 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:11,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:11,610 INFO L93 Difference]: Finished difference Result 17740 states and 37004 transitions. [2022-11-23 14:50:11,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:50:11,611 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:50:11,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:11,635 INFO L225 Difference]: With dead ends: 17740 [2022-11-23 14:50:11,635 INFO L226 Difference]: Without dead ends: 17740 [2022-11-23 14:50:11,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:50:11,636 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 264 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:11,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 299 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-23 14:50:11,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17740 states. [2022-11-23 14:50:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17740 to 13537. [2022-11-23 14:50:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13537 states, 13494 states have (on average 2.107232844227064) internal successors, (28435), 13536 states have internal predecessors, (28435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13537 states to 13537 states and 28435 transitions. [2022-11-23 14:50:11,897 INFO L78 Accepts]: Start accepts. Automaton has 13537 states and 28435 transitions. Word has length 31 [2022-11-23 14:50:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:11,898 INFO L495 AbstractCegarLoop]: Abstraction has 13537 states and 28435 transitions. [2022-11-23 14:50:11,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:11,898 INFO L276 IsEmpty]: Start isEmpty. Operand 13537 states and 28435 transitions. [2022-11-23 14:50:11,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:50:11,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:11,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:11,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-23 14:50:12,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:12,102 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:50:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:12,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1904718400, now seen corresponding path program 15 times [2022-11-23 14:50:12,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:12,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571875841] [2022-11-23 14:50:12,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:50:12,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:12,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:12,104 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:12,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2022-11-23 14:50:12,532 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:50:12,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:50:12,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-23 14:50:12,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:12,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:12,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:50:12,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:12,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:50:12,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:50:12,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:12,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:50:13,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2022-11-23 14:50:13,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2022-11-23 14:50:13,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2022-11-23 14:50:13,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 72 [2022-11-23 14:50:13,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:13,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:13,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:13,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:13,681 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:50:13,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 86 [2022-11-23 14:50:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:13,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:13,796 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:13,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571875841] [2022-11-23 14:50:13,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571875841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:13,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:13,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:50:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835395714] [2022-11-23 14:50:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:13,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:50:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:50:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:50:13,798 INFO L87 Difference]: Start difference. First operand 13537 states and 28435 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:23,934 INFO L93 Difference]: Finished difference Result 17258 states and 35981 transitions. [2022-11-23 14:50:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:50:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:50:23,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:23,957 INFO L225 Difference]: With dead ends: 17258 [2022-11-23 14:50:23,957 INFO L226 Difference]: Without dead ends: 17258 [2022-11-23 14:50:23,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2022-11-23 14:50:23,958 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 469 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 3475 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:23,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 1253 Invalid, 3529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3475 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-23 14:50:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17258 states. [2022-11-23 14:50:24,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17258 to 13839. [2022-11-23 14:50:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13839 states, 13796 states have (on average 2.1062626848361843) internal successors, (29058), 13838 states have internal predecessors, (29058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13839 states to 13839 states and 29058 transitions. [2022-11-23 14:50:24,141 INFO L78 Accepts]: Start accepts. Automaton has 13839 states and 29058 transitions. Word has length 31 [2022-11-23 14:50:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:24,142 INFO L495 AbstractCegarLoop]: Abstraction has 13839 states and 29058 transitions. [2022-11-23 14:50:24,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 13839 states and 29058 transitions. [2022-11-23 14:50:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:50:24,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:24,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:24,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:24,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:24,346 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:50:24,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:24,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1949473715, now seen corresponding path program 15 times [2022-11-23 14:50:24,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:24,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786137315] [2022-11-23 14:50:24,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:50:24,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:24,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:24,347 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:24,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-11-23 14:50:24,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:50:24,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:50:24,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-23 14:50:24,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:24,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:24,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:50:24,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:24,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:50:24,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:50:25,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:50:25,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2022-11-23 14:50:25,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2022-11-23 14:50:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-11-23 14:50:25,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-23 14:50:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:25,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:25,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:25,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:25,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:26,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:26,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:26,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:26,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:26,099 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:50:26,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:26,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:26,168 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:26,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786137315] [2022-11-23 14:50:26,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786137315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:26,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:26,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-23 14:50:26,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318134950] [2022-11-23 14:50:26,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:26,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:50:26,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:50:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:50:26,169 INFO L87 Difference]: Start difference. First operand 13839 states and 29058 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:37,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:37,129 INFO L93 Difference]: Finished difference Result 16823 states and 35095 transitions. [2022-11-23 14:50:37,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 14:50:37,130 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:50:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:37,154 INFO L225 Difference]: With dead ends: 16823 [2022-11-23 14:50:37,154 INFO L226 Difference]: Without dead ends: 16823 [2022-11-23 14:50:37,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:50:37,155 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 396 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 3561 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 3694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:37,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 709 Invalid, 3694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3561 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-23 14:50:37,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16823 states. [2022-11-23 14:50:37,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16823 to 14231. [2022-11-23 14:50:37,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 14188 states have (on average 2.10558218212574) internal successors, (29874), 14230 states have internal predecessors, (29874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 29874 transitions. [2022-11-23 14:50:37,372 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 29874 transitions. Word has length 31 [2022-11-23 14:50:37,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:37,372 INFO L495 AbstractCegarLoop]: Abstraction has 14231 states and 29874 transitions. [2022-11-23 14:50:37,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:37,372 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 29874 transitions. [2022-11-23 14:50:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:50:37,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:37,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:37,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Ended with exit code 0 [2022-11-23 14:50:37,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:37,576 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:50:37,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2143069184, now seen corresponding path program 43 times [2022-11-23 14:50:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:37,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589384379] [2022-11-23 14:50:37,577 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:50:37,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:37,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:37,578 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:37,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-23 14:50:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:38,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-23 14:50:38,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:38,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:50:38,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:50:38,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:50:38,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:50:38,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:50:38,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:50:38,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:50:38,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:50:38,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:38,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:38,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:38,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:50:38,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:50:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2022-11-23 14:50:38,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:38,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:39,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:39,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:39,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:39,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 68 [2022-11-23 14:50:39,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:39,200 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:50:39,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:39,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:39,252 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:39,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589384379] [2022-11-23 14:50:39,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589384379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:39,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:39,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:50:39,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107994803] [2022-11-23 14:50:39,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:39,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:50:39,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:39,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:50:39,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:50:39,253 INFO L87 Difference]: Start difference. First operand 14231 states and 29874 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:45,898 INFO L93 Difference]: Finished difference Result 18001 states and 37558 transitions. [2022-11-23 14:50:45,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 14:50:45,898 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:50:45,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:45,924 INFO L225 Difference]: With dead ends: 18001 [2022-11-23 14:50:45,924 INFO L226 Difference]: Without dead ends: 18001 [2022-11-23 14:50:45,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:50:45,925 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 230 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:45,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 298 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-23 14:50:45,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18001 states. [2022-11-23 14:50:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18001 to 14242. [2022-11-23 14:50:46,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14242 states, 14199 states have (on average 2.105500387351222) internal successors, (29896), 14241 states have internal predecessors, (29896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14242 states to 14242 states and 29896 transitions. [2022-11-23 14:50:46,135 INFO L78 Accepts]: Start accepts. Automaton has 14242 states and 29896 transitions. Word has length 31 [2022-11-23 14:50:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:46,136 INFO L495 AbstractCegarLoop]: Abstraction has 14242 states and 29896 transitions. [2022-11-23 14:50:46,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 14242 states and 29896 transitions. [2022-11-23 14:50:46,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:50:46,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:46,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:46,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:46,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:46,340 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:50:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash -289843408, now seen corresponding path program 44 times [2022-11-23 14:50:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:46,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875953011] [2022-11-23 14:50:46,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:50:46,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:46,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:46,341 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:46,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-11-23 14:50:46,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 14:50:46,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:50:46,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-23 14:50:46,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:46,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:46,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:50:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:46,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:50:46,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:50:47,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:50:47,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:50:47,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:50:47,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:50:47,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:50:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:47,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:47,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:47,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:50:47,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:50:47,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 57 [2022-11-23 14:50:47,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:47,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:50:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:47,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:47,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:47,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:50:47,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:47,895 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:50:47,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:47,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:47,950 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:47,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875953011] [2022-11-23 14:50:47,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875953011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:47,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:47,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:50:47,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409207134] [2022-11-23 14:50:47,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:47,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:50:47,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:47,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:50:47,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:50:47,951 INFO L87 Difference]: Start difference. First operand 14242 states and 29896 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:55,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:55,450 INFO L93 Difference]: Finished difference Result 18060 states and 37677 transitions. [2022-11-23 14:50:55,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:50:55,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 14:50:55,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:55,478 INFO L225 Difference]: With dead ends: 18060 [2022-11-23 14:50:55,478 INFO L226 Difference]: Without dead ends: 18060 [2022-11-23 14:50:55,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=209, Invalid=493, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:50:55,478 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 276 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:55,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 299 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 14:50:55,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18060 states. [2022-11-23 14:50:55,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18060 to 14231. [2022-11-23 14:50:55,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 14188 states have (on average 2.10558218212574) internal successors, (29874), 14230 states have internal predecessors, (29874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 29874 transitions. [2022-11-23 14:50:55,746 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 29874 transitions. Word has length 31 [2022-11-23 14:50:55,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:55,747 INFO L495 AbstractCegarLoop]: Abstraction has 14231 states and 29874 transitions. [2022-11-23 14:50:55,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:50:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 29874 transitions. [2022-11-23 14:50:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:50:55,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:55,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:55,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2022-11-23 14:50:55,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:55,953 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-23 14:50:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:55,954 INFO L85 PathProgramCache]: Analyzing trace with hash -609958924, now seen corresponding path program 45 times [2022-11-23 14:50:55,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:50:55,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679782655] [2022-11-23 14:50:55,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:50:55,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:50:55,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:50:55,955 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:50:55,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99aeb380-b247-42ea-bd04-450cbf22c034/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2022-11-23 14:50:56,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:50:56,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:50:56,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-23 14:50:56,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:56,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-23 14:50:56,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-23 14:50:56,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 14:50:56,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:50:56,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2022-11-23 14:50:56,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-23 14:50:56,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-23 14:50:56,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:50:56,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:50:56,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:50:56,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:50:56,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:50:56,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:56,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 43 [2022-11-23 14:50:57,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 40 [2022-11-23 14:50:57,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2022-11-23 14:50:57,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 52 [2022-11-23 14:50:57,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:57,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:57,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 54 [2022-11-23 14:50:57,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2022-11-23 14:50:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:50:57,387 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:50:57,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 66 [2022-11-23 14:50:57,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:50:57,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:50:57,443 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:50:57,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679782655] [2022-11-23 14:50:57,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679782655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:57,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:57,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 14:50:57,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801713923] [2022-11-23 14:50:57,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:57,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:50:57,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:50:57,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:50:57,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:50:57,444 INFO L87 Difference]: Start difference. First operand 14231 states and 29874 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)