./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh --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 a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- 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-2329fc7 [2022-12-14 10:03:25,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:03:25,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:03:25,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:03:25,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:03:25,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:03:25,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:03:25,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:03:25,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:03:25,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:03:25,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:03:25,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:03:25,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:03:25,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:03:25,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:03:25,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:03:25,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:03:25,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:03:25,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:03:26,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:03:26,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:03:26,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:03:26,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:03:26,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:03:26,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:03:26,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:03:26,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:03:26,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:03:26,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:03:26,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:03:26,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:03:26,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:03:26,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:03:26,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:03:26,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:03:26,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:03:26,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:03:26,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:03:26,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:03:26,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:03:26,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:03:26,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 10:03:26,036 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:03:26,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:03:26,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:03:26,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:03:26,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:03:26,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:03:26,044 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:03:26,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:03:26,044 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:03:26,044 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:03:26,044 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:03:26,045 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:03:26,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:03:26,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:03:26,045 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:03:26,045 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:03:26,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:03:26,046 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:03:26,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:03:26,047 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:03:26,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:03:26,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:03:26,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:03:26,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:03:26,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:03:26,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:03:26,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:03:26,048 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 10:03:26,049 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:03:26,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:03:26,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:03:26,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:03:26,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:03:26,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:03:26,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:03:26,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:03:26,050 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:03:26,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:03:26,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:03:26,051 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:03:26,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:03:26,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:03:26,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:03:26,052 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_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2022-12-14 10:03:26,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:03:26,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:03:26,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:03:26,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:03:26,258 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:03:26,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2022-12-14 10:03:28,848 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:03:28,998 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:03:28,998 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2022-12-14 10:03:29,007 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/data/1500bae5d/d71879eeb20f47bc9bcd587eeb2da6e9/FLAGf9546c1ab [2022-12-14 10:03:29,018 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/data/1500bae5d/d71879eeb20f47bc9bcd587eeb2da6e9 [2022-12-14 10:03:29,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:03:29,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:03:29,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:29,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:03:29,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:03:29,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c790f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29, skipping insertion in model container [2022-12-14 10:03:29,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:03:29,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:03:29,257 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_9fae5384-0051-47a8-9ad1-db32e34d527c/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30285,30298] [2022-12-14 10:03:29,262 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_9fae5384-0051-47a8-9ad1-db32e34d527c/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30729,30742] [2022-12-14 10:03:29,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:29,274 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:03:29,300 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_9fae5384-0051-47a8-9ad1-db32e34d527c/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30285,30298] [2022-12-14 10:03:29,305 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_9fae5384-0051-47a8-9ad1-db32e34d527c/sv-benchmarks/c/pthread-ext/04_incdec_cas.i[30729,30742] [2022-12-14 10:03:29,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:29,329 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:03:29,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29 WrapperNode [2022-12-14 10:03:29,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:29,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:03:29,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:03:29,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:03:29,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,366 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 264 [2022-12-14 10:03:29,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:03:29,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:03:29,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:03:29,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:03:29,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:03:29,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:03:29,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:03:29,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:03:29,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (1/1) ... [2022-12-14 10:03:29,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:03:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:03:29,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:03:29,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fae5384-0051-47a8-9ad1-db32e34d527c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:03:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:03:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 10:03:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 10:03:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:03:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:03:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:03:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:03:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:03:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:03:29,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:03:29,455 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 10:03:29,558 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:03:29,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:03:29,968 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:03:30,190 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:03:30,190 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 10:03:30,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:30 BoogieIcfgContainer [2022-12-14 10:03:30,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:03:30,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:03:30,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:03:30,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:03:30,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:03:29" (1/3) ... [2022-12-14 10:03:30,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f53370f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:03:30, skipping insertion in model container [2022-12-14 10:03:30,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:29" (2/3) ... [2022-12-14 10:03:30,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f53370f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:03:30, skipping insertion in model container [2022-12-14 10:03:30,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:30" (3/3) ... [2022-12-14 10:03:30,198 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2022-12-14 10:03:30,204 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 10:03:30,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:03:30,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-14 10:03:30,212 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 10:03:30,298 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 10:03:30,326 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:03:30,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 141 transitions, 287 flow [2022-12-14 10:03:30,339 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 141 transitions, 287 flow [2022-12-14 10:03:30,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 141 transitions, 287 flow [2022-12-14 10:03:30,381 INFO L130 PetriNetUnfolder]: 9/152 cut-off events. [2022-12-14 10:03:30,381 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 10:03:30,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 152 events. 9/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 341 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2022-12-14 10:03:30,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 2912 [2022-12-14 10:03:49,846 WARN L233 SmtUtils]: Spent 15.42s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:03:57,664 WARN L233 SmtUtils]: Spent 7.82s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:04:15,366 WARN L233 SmtUtils]: Spent 17.70s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:04:24,385 WARN L233 SmtUtils]: Spent 9.02s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:04:36,521 WARN L233 SmtUtils]: Spent 9.46s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:04:46,114 WARN L233 SmtUtils]: Spent 9.59s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:04:55,988 WARN L233 SmtUtils]: Spent 9.87s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:05:06,873 WARN L233 SmtUtils]: Spent 10.88s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:05:22,278 WARN L233 SmtUtils]: Spent 12.83s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:05:35,659 WARN L233 SmtUtils]: Spent 13.38s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:05:51,515 WARN L233 SmtUtils]: Spent 15.85s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:06:06,865 WARN L233 SmtUtils]: Spent 15.35s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:06:22,177 INFO L134 LiptonReduction]: Checked pairs total: 3565 [2022-12-14 10:06:22,177 INFO L136 LiptonReduction]: Total number of compositions: 156 [2022-12-14 10:06:22,182 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 40 transitions, 85 flow [2022-12-14 10:06:22,197 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 142 states, 105 states have (on average 2.6666666666666665) internal successors, (280), 141 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:22,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:06:22,216 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;@4e4d8be6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:06:22,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-12-14 10:06:22,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 105 states have (on average 2.6666666666666665) internal successors, (280), 141 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:06:22,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:22,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:06:22,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-14 10:06:22,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:22,228 INFO L85 PathProgramCache]: Analyzing trace with hash 935104353, now seen corresponding path program 1 times [2022-12-14 10:06:22,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:22,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748352058] [2022-12-14 10:06:22,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:22,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:22,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:22,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:22,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748352058] [2022-12-14 10:06:22,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748352058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:22,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:22,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:06:22,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840452838] [2022-12-14 10:06:22,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:22,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:06:22,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:06:22,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:06:22,400 INFO L87 Difference]: Start difference. First operand has 142 states, 105 states have (on average 2.6666666666666665) internal successors, (280), 141 states have internal predecessors, (280), 0 states have call successors, (0), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:22,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:22,796 INFO L93 Difference]: Finished difference Result 43 states and 89 transitions. [2022-12-14 10:06:22,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:06:22,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-12-14 10:06:22,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:22,806 INFO L225 Difference]: With dead ends: 43 [2022-12-14 10:06:22,806 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 10:06:22,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:06:22,810 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:22,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:06:22,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 10:06:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 10:06:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 2.119047619047619) internal successors, (89), 42 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 89 transitions. [2022-12-14 10:06:22,842 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 89 transitions. Word has length 5 [2022-12-14 10:06:22,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:22,843 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 89 transitions. [2022-12-14 10:06:22,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 89 transitions. [2022-12-14 10:06:22,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 10:06:22,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:22,844 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 10:06:22,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:06:22,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-14 10:06:22,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:22,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1076642838, now seen corresponding path program 1 times [2022-12-14 10:06:22,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:22,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154613216] [2022-12-14 10:06:22,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:22,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:06:22,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:06:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:06:22,901 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:06:22,901 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:06:22,902 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2022-12-14 10:06:22,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2022-12-14 10:06:22,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2022-12-14 10:06:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2022-12-14 10:06:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2022-12-14 10:06:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2022-12-14 10:06:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2022-12-14 10:06:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2022-12-14 10:06:22,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2022-12-14 10:06:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2022-12-14 10:06:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2022-12-14 10:06:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2022-12-14 10:06:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2022-12-14 10:06:22,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2022-12-14 10:06:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2022-12-14 10:06:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2022-12-14 10:06:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2022-12-14 10:06:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2022-12-14 10:06:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2022-12-14 10:06:22,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2022-12-14 10:06:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2022-12-14 10:06:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2022-12-14 10:06:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2022-12-14 10:06:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2022-12-14 10:06:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2022-12-14 10:06:22,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2022-12-14 10:06:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2022-12-14 10:06:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2022-12-14 10:06:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2022-12-14 10:06:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2022-12-14 10:06:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2022-12-14 10:06:22,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2022-12-14 10:06:22,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2022-12-14 10:06:22,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2022-12-14 10:06:22,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2022-12-14 10:06:22,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2022-12-14 10:06:22,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2022-12-14 10:06:22,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:06:22,913 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:06:22,914 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 10:06:22,914 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 10:06:23,015 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 10:06:23,018 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:06:23,018 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 246 transitions, 504 flow [2022-12-14 10:06:23,019 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 246 transitions, 504 flow [2022-12-14 10:06:23,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 246 transitions, 504 flow [2022-12-14 10:06:23,088 INFO L130 PetriNetUnfolder]: 17/270 cut-off events. [2022-12-14 10:06:23,088 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 10:06:23,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 270 events. 17/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1034 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 221. Up to 6 conditions per place. [2022-12-14 10:06:23,106 INFO L119 LiptonReduction]: Number of co-enabled transitions 27664 [2022-12-14 10:07:24,416 WARN L233 SmtUtils]: Spent 24.22s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:07:36,998 WARN L233 SmtUtils]: Spent 12.58s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:07:59,957 WARN L233 SmtUtils]: Spent 22.96s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:08:12,642 WARN L233 SmtUtils]: Spent 12.68s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:09:32,163 WARN L233 SmtUtils]: Spent 20.82s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:09:42,314 WARN L233 SmtUtils]: Spent 10.15s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:10:05,936 WARN L233 SmtUtils]: Spent 23.62s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:10:18,001 WARN L233 SmtUtils]: Spent 12.06s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:11:31,928 WARN L233 SmtUtils]: Spent 10.75s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:11:42,156 WARN L233 SmtUtils]: Spent 10.23s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:11:54,124 WARN L233 SmtUtils]: Spent 11.97s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:12:04,398 WARN L233 SmtUtils]: Spent 10.27s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:12:37,557 WARN L233 SmtUtils]: Spent 23.28s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:12:49,851 WARN L233 SmtUtils]: Spent 12.29s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:13:12,123 WARN L233 SmtUtils]: Spent 22.27s on a formula simplification. DAG size of input: 154 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:13:23,975 WARN L233 SmtUtils]: Spent 11.85s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:13:44,613 WARN L233 SmtUtils]: Spent 20.08s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:13:55,337 WARN L233 SmtUtils]: Spent 10.72s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:14:20,934 WARN L233 SmtUtils]: Spent 25.60s on a formula simplification. DAG size of input: 154 DAG size of output: 135 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:14:34,237 WARN L233 SmtUtils]: Spent 13.30s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:15:17,510 INFO L134 LiptonReduction]: Checked pairs total: 123323 [2022-12-14 10:15:17,511 INFO L136 LiptonReduction]: Total number of compositions: 292 [2022-12-14 10:15:17,511 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 113 places, 122 transitions, 256 flow [2022-12-14 10:15:17,831 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15844 states, 15105 states have (on average 3.2008606421714663) internal successors, (48349), 15843 states have internal predecessors, (48349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:15:17,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:15:17,833 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;@4e4d8be6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:15:17,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2022-12-14 10:15:17,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 15844 states, 15105 states have (on average 3.2008606421714663) internal successors, (48349), 15843 states have internal predecessors, (48349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:15:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:15:17,857 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:15:17,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:15:17,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-12-14 10:15:17,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:15:17,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1490943701, now seen corresponding path program 1 times [2022-12-14 10:15:17,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:15:17,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470092102] [2022-12-14 10:15:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:15:17,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:15:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:15:17,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:15:17,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:15:17,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470092102] [2022-12-14 10:15:17,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470092102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:15:17,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:15:17,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:15:17,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847133832] [2022-12-14 10:15:17,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:15:17,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:15:17,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:15:17,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:15:17,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:15:17,910 INFO L87 Difference]: Start difference. First operand has 15844 states, 15105 states have (on average 3.2008606421714663) internal successors, (48349), 15843 states have internal predecessors, (48349), 0 states have call successors, (0), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:15:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:15:18,792 INFO L93 Difference]: Finished difference Result 6996 states and 20961 transitions. [2022-12-14 10:15:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:15:18,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-12-14 10:15:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:15:18,833 INFO L225 Difference]: With dead ends: 6996 [2022-12-14 10:15:18,833 INFO L226 Difference]: Without dead ends: 6996 [2022-12-14 10:15:18,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:15:18,834 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:15:18,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:15:18,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6996 states. [2022-12-14 10:15:19,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6996 to 6996. [2022-12-14 10:15:19,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6996 states, 6971 states have (on average 3.0068856692009756) internal successors, (20961), 6995 states have internal predecessors, (20961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:15:19,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 20961 transitions. [2022-12-14 10:15:19,036 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 20961 transitions. Word has length 5 [2022-12-14 10:15:19,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:15:19,037 INFO L495 AbstractCegarLoop]: Abstraction has 6996 states and 20961 transitions. [2022-12-14 10:15:19,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:15:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 20961 transitions. [2022-12-14 10:15:19,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 10:15:19,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:15:19,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:15:19,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:15:19,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-12-14 10:15:19,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:15:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1547980809, now seen corresponding path program 1 times [2022-12-14 10:15:19,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:15:19,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127744917] [2022-12-14 10:15:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:15:19,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:15:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:15:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:15:19,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:15:19,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127744917] [2022-12-14 10:15:19,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127744917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:15:19,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:15:19,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:15:19,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764187227] [2022-12-14 10:15:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:15:19,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:15:19,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:15:19,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:15:19,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:15:19,550 INFO L87 Difference]: Start difference. First operand 6996 states and 20961 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) [2022-12-14 10:15:25,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:15:25,442 INFO L93 Difference]: Finished difference Result 10217 states and 30239 transitions. [2022-12-14 10:15:25,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:15:25,443 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 [2022-12-14 10:15:25,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:15:25,497 INFO L225 Difference]: With dead ends: 10217 [2022-12-14 10:15:25,497 INFO L226 Difference]: Without dead ends: 10217 [2022-12-14 10:15:25,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:15:25,498 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 186 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:15:25,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 102 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 10:15:25,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10217 states. [2022-12-14 10:15:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10217 to 9028. [2022-12-14 10:15:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9007 states have (on average 2.987343177528589) internal successors, (26907), 9027 states have internal predecessors, (26907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:15:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 26907 transitions. [2022-12-14 10:15:25,798 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 26907 transitions. Word has length 10 [2022-12-14 10:15:25,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:15:25,799 INFO L495 AbstractCegarLoop]: Abstraction has 9028 states and 26907 transitions. [2022-12-14 10:15:25,799 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) [2022-12-14 10:15:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 26907 transitions. [2022-12-14 10:15:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:15:25,801 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:15:25,801 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 10:15:25,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:15:25,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-12-14 10:15:25,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:15:25,802 INFO L85 PathProgramCache]: Analyzing trace with hash -316316353, now seen corresponding path program 1 times [2022-12-14 10:15:25,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:15:25,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166981661] [2022-12-14 10:15:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:15:25,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:15:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:15:25,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:15:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:15:25,830 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:15:25,830 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:15:25,830 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2022-12-14 10:15:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2022-12-14 10:15:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2022-12-14 10:15:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2022-12-14 10:15:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2022-12-14 10:15:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2022-12-14 10:15:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2022-12-14 10:15:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2022-12-14 10:15:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2022-12-14 10:15:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2022-12-14 10:15:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2022-12-14 10:15:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2022-12-14 10:15:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2022-12-14 10:15:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2022-12-14 10:15:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2022-12-14 10:15:25,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2022-12-14 10:15:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2022-12-14 10:15:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2022-12-14 10:15:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2022-12-14 10:15:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2022-12-14 10:15:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2022-12-14 10:15:25,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2022-12-14 10:15:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2022-12-14 10:15:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2022-12-14 10:15:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2022-12-14 10:15:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2022-12-14 10:15:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2022-12-14 10:15:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2022-12-14 10:15:25,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2022-12-14 10:15:25,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2022-12-14 10:15:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2022-12-14 10:15:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2022-12-14 10:15:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2022-12-14 10:15:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2022-12-14 10:15:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2022-12-14 10:15:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2022-12-14 10:15:25,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2022-12-14 10:15:25,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2022-12-14 10:15:25,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2022-12-14 10:15:25,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2022-12-14 10:15:25,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2022-12-14 10:15:25,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:15:25,838 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 10:15:25,839 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 10:15:25,839 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-14 10:15:25,968 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 10:15:25,972 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:15:25,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 336 places, 351 transitions, 723 flow [2022-12-14 10:15:25,973 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 336 places, 351 transitions, 723 flow [2022-12-14 10:15:25,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 351 transitions, 723 flow [2022-12-14 10:15:26,088 INFO L130 PetriNetUnfolder]: 25/388 cut-off events. [2022-12-14 10:15:26,089 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-14 10:15:26,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 388 events. 25/388 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1793 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 325. Up to 8 conditions per place. [2022-12-14 10:15:26,108 INFO L119 LiptonReduction]: Number of co-enabled transitions 74256 [2022-12-14 10:15:56,215 WARN L233 SmtUtils]: Spent 22.56s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:16:09,297 WARN L233 SmtUtils]: Spent 13.08s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:16:33,771 WARN L233 SmtUtils]: Spent 24.47s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:16:45,451 WARN L233 SmtUtils]: Spent 11.68s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:17:17,675 WARN L233 SmtUtils]: Spent 25.30s on a formula simplification. DAG size of input: 137 DAG size of output: 124 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:17:31,743 WARN L233 SmtUtils]: Spent 14.07s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:17:59,802 WARN L233 SmtUtils]: Spent 28.06s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:18:14,037 WARN L233 SmtUtils]: Spent 14.23s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)