./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/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_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/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_62a1f260-e032-4b52-bb7a-42da7e0427a2/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 a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b --- 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 11:36:14,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:36:14,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:36:14,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:36:14,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:36:14,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:36:14,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:36:14,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:36:14,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:36:14,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:36:14,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:36:14,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:36:14,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:36:14,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:36:14,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:36:14,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:36:14,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:36:14,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:36:14,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:36:14,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:36:14,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:36:14,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:36:14,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:36:14,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:36:14,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:36:14,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:36:14,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:36:14,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:36:14,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:36:14,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:36:14,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:36:14,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:36:14,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:36:14,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:36:14,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:36:14,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:36:14,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:36:14,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:36:14,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:36:14,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:36:14,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:36:14,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 11:36:14,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:36:14,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:36:14,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:36:14,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:36:14,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:36:14,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:36:14,250 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:36:14,250 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:36:14,251 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:36:14,251 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:36:14,251 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:36:14,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:36:14,251 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:36:14,251 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:36:14,252 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:36:14,252 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:36:14,252 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:36:14,252 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:36:14,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:36:14,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:36:14,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:36:14,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:36:14,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:36:14,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:36:14,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:36:14,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:36:14,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:36:14,254 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 11:36:14,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:36:14,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:36:14,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:36:14,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:36:14,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:36:14,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:36:14,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:36:14,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:36:14,255 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:36:14,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:36:14,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:36:14,256 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:36:14,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:36:14,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:36:14,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:36:14,256 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_62a1f260-e032-4b52-bb7a-42da7e0427a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b [2022-12-14 11:36:14,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:36:14,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:36:14,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:36:14,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:36:14,463 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:36:14,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-12-14 11:36:17,128 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:36:17,320 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:36:17,321 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-12-14 11:36:17,329 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/data/7aea5ca18/311ab18a3fbc4fa798feff112d46b5cd/FLAGf549ddd92 [2022-12-14 11:36:17,339 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/data/7aea5ca18/311ab18a3fbc4fa798feff112d46b5cd [2022-12-14 11:36:17,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:36:17,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:36:17,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:36:17,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:36:17,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:36:17,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a566510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17, skipping insertion in model container [2022-12-14 11:36:17,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:36:17,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:36:17,644 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_62a1f260-e032-4b52-bb7a-42da7e0427a2/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-12-14 11:36:17,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:36:17,678 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:36:17,705 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_62a1f260-e032-4b52-bb7a-42da7e0427a2/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-12-14 11:36:17,706 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,708 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:36:17,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:36:17,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:36:17,742 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:36:17,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17 WrapperNode [2022-12-14 11:36:17,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:36:17,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:36:17,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:36:17,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:36:17,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,783 INFO L138 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2022-12-14 11:36:17,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:36:17,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:36:17,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:36:17,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:36:17,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:36:17,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:36:17,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:36:17,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:36:17,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (1/1) ... [2022-12-14 11:36:17,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:36:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:36:17,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:36:17,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:36:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-12-14 11:36:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-12-14 11:36:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:36:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 11:36:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:36:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:36:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:36:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:36:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 11:36:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:36:17,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:36:17,862 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 11:36:17,967 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:36:17,969 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:36:18,193 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:36:18,258 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:36:18,258 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:36:18,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:36:18 BoogieIcfgContainer [2022-12-14 11:36:18,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:36:18,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:36:18,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:36:18,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:36:18,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:36:17" (1/3) ... [2022-12-14 11:36:18,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e524f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:36:18, skipping insertion in model container [2022-12-14 11:36:18,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:36:17" (2/3) ... [2022-12-14 11:36:18,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e524f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:36:18, skipping insertion in model container [2022-12-14 11:36:18,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:36:18" (3/3) ... [2022-12-14 11:36:18,267 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2022-12-14 11:36:18,273 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:36:18,281 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:36:18,282 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-12-14 11:36:18,282 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:36:18,317 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 11:36:18,342 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:36:18,354 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 159 transitions, 323 flow [2022-12-14 11:36:18,356 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 159 transitions, 323 flow [2022-12-14 11:36:18,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 323 flow [2022-12-14 11:36:18,402 INFO L130 PetriNetUnfolder]: 6/158 cut-off events. [2022-12-14 11:36:18,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 11:36:18,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 6/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-12-14 11:36:18,411 INFO L119 LiptonReduction]: Number of co-enabled transitions 5964 [2022-12-14 11:36:21,176 INFO L134 LiptonReduction]: Checked pairs total: 8794 [2022-12-14 11:36:21,176 INFO L136 LiptonReduction]: Total number of compositions: 201 [2022-12-14 11:36:21,186 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 37 transitions, 79 flow [2022-12-14 11:36:21,209 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 213 states, 137 states have (on average 3.153284671532847) internal successors, (432), 212 states have internal predecessors, (432), 0 states have call successors, (0), 0 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 11:36:21,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:36:21,237 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;@6c144de1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:36:21,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-12-14 11:36:21,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 137 states have (on average 3.153284671532847) internal successors, (432), 212 states have internal predecessors, (432), 0 states have call successors, (0), 0 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 11:36:21,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 11:36:21,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:21,242 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 11:36:21,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:21,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:21,247 INFO L85 PathProgramCache]: Analyzing trace with hash 703, now seen corresponding path program 1 times [2022-12-14 11:36:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:21,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740899843] [2022-12-14 11:36:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:21,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:21,332 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 11:36:21,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:21,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740899843] [2022-12-14 11:36:21,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740899843] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:21,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:21,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 11:36:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333264721] [2022-12-14 11:36:21,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:21,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:36:21,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:21,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:36:21,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:36:21,357 INFO L87 Difference]: Start difference. First operand has 213 states, 137 states have (on average 3.153284671532847) internal successors, (432), 212 states have internal predecessors, (432), 0 states have call successors, (0), 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) [2022-12-14 11:36:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:21,387 INFO L93 Difference]: Finished difference Result 64 states and 123 transitions. [2022-12-14 11:36:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:36:21,390 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 [2022-12-14 11:36:21,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:21,396 INFO L225 Difference]: With dead ends: 64 [2022-12-14 11:36:21,396 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 11:36:21,396 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 [2022-12-14 11:36:21,399 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:21,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:36:21,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 11:36:21,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-12-14 11:36:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.016949152542373) internal successors, (119), 61 states have internal predecessors, (119), 0 states have call successors, (0), 0 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 11:36:21,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 119 transitions. [2022-12-14 11:36:21,423 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 119 transitions. Word has length 1 [2022-12-14 11:36:21,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:21,424 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 119 transitions. [2022-12-14 11:36:21,424 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) [2022-12-14 11:36:21,424 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 119 transitions. [2022-12-14 11:36:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:36:21,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:21,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:36:21,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:36:21,425 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:21,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:21,425 INFO L85 PathProgramCache]: Analyzing trace with hash 682191282, now seen corresponding path program 1 times [2022-12-14 11:36:21,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:21,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702078229] [2022-12-14 11:36:21,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:21,539 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 11:36:21,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:21,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702078229] [2022-12-14 11:36:21,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702078229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:21,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:21,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:36:21,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16342933] [2022-12-14 11:36:21,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:21,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:36:21,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:21,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:36:21,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:21,542 INFO L87 Difference]: Start difference. First operand 62 states and 119 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 11:36:21,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:21,575 INFO L93 Difference]: Finished difference Result 107 states and 199 transitions. [2022-12-14 11:36:21,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:36:21,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 11:36:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:21,578 INFO L225 Difference]: With dead ends: 107 [2022-12-14 11:36:21,578 INFO L226 Difference]: Without dead ends: 107 [2022-12-14 11:36:21,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:21,580 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:21,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:36:21,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-14 11:36:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 62. [2022-12-14 11:36:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.0) internal successors, (118), 61 states have internal predecessors, (118), 0 states have call successors, (0), 0 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 11:36:21,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 118 transitions. [2022-12-14 11:36:21,591 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 118 transitions. Word has length 5 [2022-12-14 11:36:21,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:21,591 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 118 transitions. [2022-12-14 11:36:21,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 11:36:21,591 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 118 transitions. [2022-12-14 11:36:21,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:36:21,592 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:21,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 11:36:21,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:36:21,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:21,593 INFO L85 PathProgramCache]: Analyzing trace with hash -327419838, now seen corresponding path program 1 times [2022-12-14 11:36:21,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:21,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917021338] [2022-12-14 11:36:21,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:21,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:21,669 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 11:36:21,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:21,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917021338] [2022-12-14 11:36:21,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917021338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:21,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:21,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:36:21,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495922232] [2022-12-14 11:36:21,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:21,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:36:21,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:36:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:21,672 INFO L87 Difference]: Start difference. First operand 62 states and 118 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 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 11:36:21,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:21,698 INFO L93 Difference]: Finished difference Result 68 states and 128 transitions. [2022-12-14 11:36:21,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:36:21,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-12-14 11:36:21,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:21,699 INFO L225 Difference]: With dead ends: 68 [2022-12-14 11:36:21,699 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 11:36:21,700 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 [2022-12-14 11:36:21,701 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:21,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:36:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 11:36:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-14 11:36:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 64 states have (on average 1.96875) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 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 11:36:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 126 transitions. [2022-12-14 11:36:21,710 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 126 transitions. Word has length 6 [2022-12-14 11:36:21,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:21,710 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 126 transitions. [2022-12-14 11:36:21,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 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 11:36:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 126 transitions. [2022-12-14 11:36:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 11:36:21,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:21,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:36:21,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:36:21,711 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:21,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1563607182, now seen corresponding path program 1 times [2022-12-14 11:36:21,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:21,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347929016] [2022-12-14 11:36:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:21,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:21,746 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 11:36:21,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:21,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347929016] [2022-12-14 11:36:21,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347929016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:21,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:21,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:36:21,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001656015] [2022-12-14 11:36:21,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:21,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:36:21,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:21,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:36:21,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:21,748 INFO L87 Difference]: Start difference. First operand 67 states and 126 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 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 11:36:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:21,777 INFO L93 Difference]: Finished difference Result 66 states and 120 transitions. [2022-12-14 11:36:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:36:21,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-12-14 11:36:21,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:21,778 INFO L225 Difference]: With dead ends: 66 [2022-12-14 11:36:21,778 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 11:36:21,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:21,779 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:21,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:36:21,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 11:36:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 11:36:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.9473684210526316) internal successors, (111), 60 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 11:36:21,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 111 transitions. [2022-12-14 11:36:21,785 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 111 transitions. Word has length 7 [2022-12-14 11:36:21,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:21,785 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 111 transitions. [2022-12-14 11:36:21,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 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 11:36:21,785 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 111 transitions. [2022-12-14 11:36:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 11:36:21,786 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:21,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:36:21,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:36:21,786 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:21,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1561175096, now seen corresponding path program 1 times [2022-12-14 11:36:21,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:21,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553861253] [2022-12-14 11:36:21,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:21,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:21,808 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 11:36:21,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:21,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553861253] [2022-12-14 11:36:21,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553861253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:21,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:21,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:36:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392915434] [2022-12-14 11:36:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:21,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:36:21,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:36:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:21,810 INFO L87 Difference]: Start difference. First operand 61 states and 111 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 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 11:36:21,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:21,840 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2022-12-14 11:36:21,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:36:21,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2022-12-14 11:36:21,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:21,841 INFO L225 Difference]: With dead ends: 57 [2022-12-14 11:36:21,841 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 11:36:21,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:36:21,842 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:21,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:36:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 11:36:21,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-14 11:36:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 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 11:36:21,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2022-12-14 11:36:21,845 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 7 [2022-12-14 11:36:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:21,845 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2022-12-14 11:36:21,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 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 11:36:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2022-12-14 11:36:21,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:36:21,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:21,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:36:21,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:36:21,846 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:21,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:21,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1345485070, now seen corresponding path program 1 times [2022-12-14 11:36:21,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:21,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755200295] [2022-12-14 11:36:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:21,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:21,914 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 11:36:21,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:21,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755200295] [2022-12-14 11:36:21,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755200295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:21,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:21,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:36:21,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041138087] [2022-12-14 11:36:21,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:21,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:36:21,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:21,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:36:21,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:36:21,917 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-12-14 11:36:21,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:21,954 INFO L93 Difference]: Finished difference Result 46 states and 69 transitions. [2022-12-14 11:36:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:36:21,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-12-14 11:36:21,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:21,955 INFO L225 Difference]: With dead ends: 46 [2022-12-14 11:36:21,956 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 11:36:21,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:36:21,957 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:21,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:36:21,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 11:36:21,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-14 11:36:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.641025641025641) internal successors, (64), 41 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 11:36:21,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2022-12-14 11:36:21,960 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 64 transitions. Word has length 9 [2022-12-14 11:36:21,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:21,961 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 64 transitions. [2022-12-14 11:36:21,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-12-14 11:36:21,961 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 64 transitions. [2022-12-14 11:36:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:36:21,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:21,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:36:21,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:36:21,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:21,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:21,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1345600390, now seen corresponding path program 2 times [2022-12-14 11:36:21,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:21,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361867351] [2022-12-14 11:36:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:21,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:22,029 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 11:36:22,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:22,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361867351] [2022-12-14 11:36:22,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361867351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:22,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:36:22,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:36:22,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449609094] [2022-12-14 11:36:22,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:22,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:36:22,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:22,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:36:22,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:36:22,031 INFO L87 Difference]: Start difference. First operand 42 states and 64 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2022-12-14 11:36:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:22,072 INFO L93 Difference]: Finished difference Result 45 states and 67 transitions. [2022-12-14 11:36:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:36:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 [2022-12-14 11:36:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:22,073 INFO L225 Difference]: With dead ends: 45 [2022-12-14 11:36:22,073 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 11:36:22,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:36:22,074 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:22,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:36:22,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 11:36:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-12-14 11:36:22,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 37 states have internal predecessors, (57), 0 states have call successors, (0), 0 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 11:36:22,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 57 transitions. [2022-12-14 11:36:22,076 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 57 transitions. Word has length 9 [2022-12-14 11:36:22,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:22,077 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 57 transitions. [2022-12-14 11:36:22,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2022-12-14 11:36:22,077 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2022-12-14 11:36:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 11:36:22,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:22,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:36:22,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:36:22,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-14 11:36:22,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash 11454205, now seen corresponding path program 1 times [2022-12-14 11:36:22,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:22,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732738122] [2022-12-14 11:36:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:22,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:36:22,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:36:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:36:22,106 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:36:22,106 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:36:22,107 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-12-14 11:36:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-12-14 11:36:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-12-14 11:36:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-12-14 11:36:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-12-14 11:36:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-12-14 11:36:22,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-12-14 11:36:22,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-12-14 11:36:22,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-12-14 11:36:22,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-12-14 11:36:22,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-12-14 11:36:22,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-12-14 11:36:22,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:36:22,114 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-12-14 11:36:22,119 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 11:36:22,119 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:36:22,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:36:22 BasicIcfg [2022-12-14 11:36:22,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:36:22,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:36:22,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:36:22,138 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:36:22,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:36:18" (3/4) ... [2022-12-14 11:36:22,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:36:22,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:36:22,141 INFO L158 Benchmark]: Toolchain (without parser) took 4799.01ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 77.6MB in the beginning and 86.9MB in the end (delta: -9.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-12-14 11:36:22,141 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 89.2MB in the end (delta: 78.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:36:22,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.40ms. Allocated memory is still 119.5MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 914.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 11:36:22,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.37ms. Allocated memory is still 119.5MB. Free memory was 76.6MB in the beginning and 74.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:36:22,142 INFO L158 Benchmark]: Boogie Preprocessor took 18.98ms. Allocated memory is still 119.5MB. Free memory was 74.2MB in the beginning and 72.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:36:22,142 INFO L158 Benchmark]: RCFGBuilder took 456.84ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 72.7MB in the beginning and 115.4MB in the end (delta: -42.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-12-14 11:36:22,142 INFO L158 Benchmark]: TraceAbstraction took 3875.60ms. Allocated memory is still 144.7MB. Free memory was 114.6MB in the beginning and 87.9MB in the end (delta: 26.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-12-14 11:36:22,142 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 144.7MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:36:22,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 89.2MB in the end (delta: 78.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.40ms. Allocated memory is still 119.5MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 914.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.37ms. Allocated memory is still 119.5MB. Free memory was 76.6MB in the beginning and 74.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.98ms. Allocated memory is still 119.5MB. Free memory was 74.2MB in the beginning and 72.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.84ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 72.7MB in the beginning and 115.4MB in the end (delta: -42.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3875.60ms. Allocated memory is still 144.7MB. Free memory was 114.6MB in the beginning and 87.9MB in the end (delta: 26.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 144.7MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 157 PlacesBefore, 38 PlacesAfterwards, 159 TransitionsBefore, 37 TransitionsAfterwards, 5964 CoEnabledTransitionPairs, 8 FixpointIterations, 55 TrivialSequentialCompositions, 125 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 201 TotalNumberOfCompositions, 8794 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6965, independent: 6801, independent conditional: 0, independent unconditional: 6801, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4698, independent: 4630, independent conditional: 0, independent unconditional: 4630, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4698, independent: 4515, independent conditional: 0, independent unconditional: 4515, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 183, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6965, independent: 2171, independent conditional: 0, independent unconditional: 2171, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 4698, unknown conditional: 0, unknown unconditional: 4698] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 751]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L755] 0 pthread_t t; [L756] 0 pendingIo = 1 [L757] 0 stoppingFlag = 0 [L758] 0 stoppingEvent = 0 [L759] 0 stopped = 0 [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 [L746] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; [L722] 1 return tmp; [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() [L727] COND TRUE 1 pending == 0 [L729] 1 stoppingEvent = 1 [L746] RET 1 BCSP_IoDecrement() [L748] 1 int lse = stoppingEvent; [L750] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=0, stopped=1, stopped = 1=49, stoppingEvent=1, stoppingFlag=1] [L709] 0 int lp = pendingIo; VAL [lp=0, lsf=0, pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 [L715] 0 return 0; [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=1, stopped=1, stopped = 1=49, stoppingEvent=1, stoppingFlag=1] Now there is a data race on ~stopped~0 between C: !stopped [737] and C: stopped = 1 [751] - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 14 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 11:36:22,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62a1f260-e032-4b52-bb7a-42da7e0427a2/bin/utaipan-gh47qXpMRh/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE