./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/safestack_relacy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/safestack_relacy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 --- 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-38b53e6 [2022-11-25 17:16:06,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:16:06,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:16:06,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:16:06,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:16:06,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:16:06,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:16:06,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:16:06,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:16:06,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:16:06,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:16:06,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:16:06,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:16:06,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:16:06,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:16:06,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:16:06,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:16:06,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:16:06,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:16:06,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:16:06,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:16:06,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:16:06,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:16:06,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:16:06,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:16:06,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:16:06,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:16:06,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:16:06,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:16:06,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:16:06,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:16:06,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:16:06,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:16:06,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:16:06,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:16:06,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:16:06,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:16:06,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:16:06,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:16:06,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:16:06,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:16:06,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:16:06,594 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:16:06,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:16:06,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:16:06,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:16:06,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:16:06,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:16:06,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:16:06,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:16:06,598 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:16:06,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:16:06,599 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:16:06,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:16:06,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:16:06,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:16:06,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:16:06,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:16:06,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:16:06,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:16:06,600 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:16:06,601 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:16:06,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:16:06,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:16:06,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:16:06,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:16:06,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:16:06,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:16:06,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:16:06,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:16:06,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:16:06,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:16:06,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:16:06,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:16:06,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:16:06,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:16:06,604 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:16:06,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:16:06,605 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 [2022-11-25 17:16:06,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:16:06,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:16:06,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:16:06,987 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:16:06,987 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:16:06,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-complex/safestack_relacy.i [2022-11-25 17:16:10,199 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:16:10,534 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:16:10,535 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2022-11-25 17:16:10,560 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/data/d75f57d29/564de5ed81994905bc6ec92f839bafab/FLAG5cc842164 [2022-11-25 17:16:10,586 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/data/d75f57d29/564de5ed81994905bc6ec92f839bafab [2022-11-25 17:16:10,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:16:10,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:16:10,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:16:10,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:16:10,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:16:10,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:16:10" (1/1) ... [2022-11-25 17:16:10,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e49d5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:10, skipping insertion in model container [2022-11-25 17:16:10,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:16:10" (1/1) ... [2022-11-25 17:16:10,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:16:10,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:16:11,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,662 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_db88df15-af4a-4a29-876f-3e67f483df20/sv-benchmarks/c/pthread-complex/safestack_relacy.i[78860,78873] [2022-11-25 17:16:11,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:16:11,687 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:16:11,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:16:11,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:16:11,804 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_db88df15-af4a-4a29-876f-3e67f483df20/sv-benchmarks/c/pthread-complex/safestack_relacy.i[78860,78873] [2022-11-25 17:16:11,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:16:11,906 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:16:11,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11 WrapperNode [2022-11-25 17:16:11,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:16:11,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:16:11,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:16:11,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:16:11,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:11,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,028 INFO L138 Inliner]: procedures = 481, calls = 74, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 471 [2022-11-25 17:16:12,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:16:12,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:16:12,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:16:12,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:16:12,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:16:12,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:16:12,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:16:12,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:16:12,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (1/1) ... [2022-11-25 17:16:12,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:16:12,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:16:12,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:16:12,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:16:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:16:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:16:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:16:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:16:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:16:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-11-25 17:16:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-11-25 17:16:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:16:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:16:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:16:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:16:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:16:12,254 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:16:12,683 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:16:12,686 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:16:13,793 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:16:14,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:16:14,139 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-25 17:16:14,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:16:14 BoogieIcfgContainer [2022-11-25 17:16:14,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:16:14,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:16:14,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:16:14,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:16:14,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:16:10" (1/3) ... [2022-11-25 17:16:14,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114fc0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:16:14, skipping insertion in model container [2022-11-25 17:16:14,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:11" (2/3) ... [2022-11-25 17:16:14,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114fc0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:16:14, skipping insertion in model container [2022-11-25 17:16:14,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:16:14" (3/3) ... [2022-11-25 17:16:14,158 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2022-11-25 17:16:14,169 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:16:14,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:16:14,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-25 17:16:14,182 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:16:14,401 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 17:16:14,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 351 transitions, 710 flow [2022-11-25 17:16:14,717 INFO L130 PetriNetUnfolder]: 19/372 cut-off events. [2022-11-25 17:16:14,718 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:16:14,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 372 events. 19/372 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 684 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 270. Up to 4 conditions per place. [2022-11-25 17:16:14,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 337 places, 351 transitions, 710 flow [2022-11-25 17:16:14,747 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 337 places, 351 transitions, 710 flow [2022-11-25 17:16:14,751 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:16:14,776 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 337 places, 351 transitions, 710 flow [2022-11-25 17:16:14,781 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 337 places, 351 transitions, 710 flow [2022-11-25 17:16:14,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 351 transitions, 710 flow [2022-11-25 17:16:14,918 INFO L130 PetriNetUnfolder]: 19/372 cut-off events. [2022-11-25 17:16:14,918 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:16:14,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 372 events. 19/372 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 684 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 270. Up to 4 conditions per place. [2022-11-25 17:16:14,931 INFO L119 LiptonReduction]: Number of co-enabled transitions 13176 [2022-11-25 17:17:57,881 INFO L134 LiptonReduction]: Checked pairs total: 60224 [2022-11-25 17:17:57,881 INFO L136 LiptonReduction]: Total number of compositions: 549 [2022-11-25 17:17:57,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:17:57,914 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=PETRI_NET, 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;@6316169a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:17:57,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-11-25 17:17:57,917 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:17:57,917 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:17:57,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:17:57,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:17:57,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 17:17:57,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:57,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1892, now seen corresponding path program 1 times [2022-11-25 17:17:57,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:57,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428474782] [2022-11-25 17:17:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:57,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:17:58,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:17:58,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428474782] [2022-11-25 17:17:58,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428474782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:17:58,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:17:58,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:17:58,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366524537] [2022-11-25 17:17:58,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:17:58,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:17:58,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:17:58,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:17:58,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:17:58,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 900 [2022-11-25 17:17:58,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 102 transitions, 212 flow. Second operand has 2 states, 2 states have (on average 303.5) internal successors, (607), 2 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:58,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:17:58,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 900 [2022-11-25 17:17:58,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:17:58,554 INFO L130 PetriNetUnfolder]: 153/480 cut-off events. [2022-11-25 17:17:58,554 INFO L131 PetriNetUnfolder]: For 3/7 co-relation queries the response was YES. [2022-11-25 17:17:58,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 480 events. 153/480 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1970 event pairs, 115 based on Foata normal form. 12/396 useless extension candidates. Maximal degree in co-relation 756. Up to 305 conditions per place. [2022-11-25 17:17:58,558 INFO L137 encePairwiseOnDemand]: 871/900 looper letters, 40 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2022-11-25 17:17:58,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 234 flow [2022-11-25 17:17:58,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:17:58,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:17:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 675 transitions. [2022-11-25 17:17:58,580 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-11-25 17:17:58,581 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 675 transitions. [2022-11-25 17:17:58,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 675 transitions. [2022-11-25 17:17:58,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:17:58,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 675 transitions. [2022-11-25 17:17:58,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 337.5) internal successors, (675), 2 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:58,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 900.0) internal successors, (2700), 3 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:58,605 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 900.0) internal successors, (2700), 3 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:58,608 INFO L175 Difference]: Start difference. First operand has 93 places, 102 transitions, 212 flow. Second operand 2 states and 675 transitions. [2022-11-25 17:17:58,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 234 flow [2022-11-25 17:17:58,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:17:58,615 INFO L231 Difference]: Finished difference. Result has 69 places, 73 transitions, 154 flow [2022-11-25 17:17:58,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=900, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=69, PETRI_TRANSITIONS=73} [2022-11-25 17:17:58,622 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, -24 predicate places. [2022-11-25 17:17:58,622 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 73 transitions, 154 flow [2022-11-25 17:17:58,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 303.5) internal successors, (607), 2 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:58,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:17:58,624 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-25 17:17:58,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:17:58,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 17:17:58,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:58,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1755714295, now seen corresponding path program 1 times [2022-11-25 17:17:58,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:58,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33777800] [2022-11-25 17:17:58,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:58,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:17:59,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:17:59,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33777800] [2022-11-25 17:17:59,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33777800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:17:59,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:17:59,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:17:59,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27522008] [2022-11-25 17:17:59,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:17:59,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:17:59,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:17:59,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:17:59,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:17:59,107 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 900 [2022-11-25 17:17:59,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 73 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:59,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:17:59,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 900 [2022-11-25 17:17:59,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:17:59,745 INFO L130 PetriNetUnfolder]: 153/481 cut-off events. [2022-11-25 17:17:59,747 INFO L131 PetriNetUnfolder]: For 3/7 co-relation queries the response was YES. [2022-11-25 17:17:59,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 481 events. 153/481 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1974 event pairs, 115 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 791. Up to 305 conditions per place. [2022-11-25 17:17:59,750 INFO L137 encePairwiseOnDemand]: 897/900 looper letters, 39 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2022-11-25 17:17:59,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 74 transitions, 238 flow [2022-11-25 17:17:59,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:17:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:17:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-11-25 17:17:59,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3466666666666667 [2022-11-25 17:17:59,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-11-25 17:17:59,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-11-25 17:17:59,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:17:59,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-11-25 17:17:59,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:59,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 900.0) internal successors, (3600), 4 states have internal predecessors, (3600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:59,772 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 900.0) internal successors, (3600), 4 states have internal predecessors, (3600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:59,772 INFO L175 Difference]: Start difference. First operand has 69 places, 73 transitions, 154 flow. Second operand 3 states and 936 transitions. [2022-11-25 17:17:59,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 74 transitions, 238 flow [2022-11-25 17:17:59,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 74 transitions, 238 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:17:59,775 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 166 flow [2022-11-25 17:17:59,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=900, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2022-11-25 17:17:59,777 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, -21 predicate places. [2022-11-25 17:17:59,777 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 166 flow [2022-11-25 17:17:59,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:59,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:17:59,778 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:17:59,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:17:59,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 17:17:59,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1693311902, now seen corresponding path program 1 times [2022-11-25 17:17:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:17:59,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840995192] [2022-11-25 17:17:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:17:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:18:00,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:00,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840995192] [2022-11-25 17:18:00,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840995192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:18:00,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93550390] [2022-11-25 17:18:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:00,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:00,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:00,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:18:00,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:18:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:00,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:18:00,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:18:00,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:18:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:18:00,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93550390] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:18:00,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:18:00,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-11-25 17:18:00,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231155003] [2022-11-25 17:18:00,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:18:00,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:18:00,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:18:00,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:18:00,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 900 [2022-11-25 17:18:00,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 166 flow. Second operand has 8 states, 8 states have (on average 297.5) internal successors, (2380), 8 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:00,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:18:00,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 900 [2022-11-25 17:18:00,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:18:01,534 INFO L130 PetriNetUnfolder]: 153/482 cut-off events. [2022-11-25 17:18:01,534 INFO L131 PetriNetUnfolder]: For 3/7 co-relation queries the response was YES. [2022-11-25 17:18:01,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 482 events. 153/482 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1974 event pairs, 115 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 799. Up to 305 conditions per place. [2022-11-25 17:18:01,538 INFO L137 encePairwiseOnDemand]: 897/900 looper letters, 39 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2022-11-25 17:18:01,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 254 flow [2022-11-25 17:18:01,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:18:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:18:01,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1227 transitions. [2022-11-25 17:18:01,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3408333333333333 [2022-11-25 17:18:01,543 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1227 transitions. [2022-11-25 17:18:01,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1227 transitions. [2022-11-25 17:18:01,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:18:01,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1227 transitions. [2022-11-25 17:18:01,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 306.75) internal successors, (1227), 4 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:01,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 900.0) internal successors, (4500), 5 states have internal predecessors, (4500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:01,559 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 900.0) internal successors, (4500), 5 states have internal predecessors, (4500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:01,559 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 166 flow. Second operand 4 states and 1227 transitions. [2022-11-25 17:18:01,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 254 flow [2022-11-25 17:18:01,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 250 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:18:01,562 INFO L231 Difference]: Finished difference. Result has 75 places, 75 transitions, 178 flow [2022-11-25 17:18:01,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=900, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=75, PETRI_TRANSITIONS=75} [2022-11-25 17:18:01,564 INFO L288 CegarLoopForPetriNet]: 93 programPoint places, -18 predicate places. [2022-11-25 17:18:01,564 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 75 transitions, 178 flow [2022-11-25 17:18:01,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 297.5) internal successors, (2380), 8 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:18:01,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:18:01,566 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 17:18:01,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:18:01,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:01,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-25 17:18:01,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:01,774 INFO L85 PathProgramCache]: Analyzing trace with hash 241162281, now seen corresponding path program 2 times [2022-11-25 17:18:01,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:01,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939936525] [2022-11-25 17:18:01,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:01,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:18:01,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:18:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:18:01,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:18:01,915 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:18:01,916 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (59 of 60 remaining) [2022-11-25 17:18:01,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2022-11-25 17:18:01,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2022-11-25 17:18:01,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2022-11-25 17:18:01,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2022-11-25 17:18:01,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2022-11-25 17:18:01,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2022-11-25 17:18:01,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2022-11-25 17:18:01,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2022-11-25 17:18:01,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2022-11-25 17:18:01,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2022-11-25 17:18:01,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2022-11-25 17:18:01,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2022-11-25 17:18:01,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2022-11-25 17:18:01,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2022-11-25 17:18:01,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2022-11-25 17:18:01,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2022-11-25 17:18:01,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2022-11-25 17:18:01,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2022-11-25 17:18:01,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2022-11-25 17:18:01,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2022-11-25 17:18:01,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2022-11-25 17:18:01,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2022-11-25 17:18:01,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2022-11-25 17:18:01,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2022-11-25 17:18:01,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2022-11-25 17:18:01,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2022-11-25 17:18:01,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2022-11-25 17:18:01,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2022-11-25 17:18:01,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2022-11-25 17:18:01,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2022-11-25 17:18:01,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2022-11-25 17:18:01,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2022-11-25 17:18:01,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2022-11-25 17:18:01,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2022-11-25 17:18:01,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2022-11-25 17:18:01,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2022-11-25 17:18:01,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2022-11-25 17:18:01,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2022-11-25 17:18:01,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2022-11-25 17:18:01,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2022-11-25 17:18:01,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2022-11-25 17:18:01,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2022-11-25 17:18:01,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2022-11-25 17:18:01,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2022-11-25 17:18:01,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2022-11-25 17:18:01,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2022-11-25 17:18:01,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2022-11-25 17:18:01,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2022-11-25 17:18:01,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2022-11-25 17:18:01,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2022-11-25 17:18:01,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2022-11-25 17:18:01,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2022-11-25 17:18:01,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2022-11-25 17:18:01,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2022-11-25 17:18:01,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2022-11-25 17:18:01,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2022-11-25 17:18:01,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2022-11-25 17:18:01,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2022-11-25 17:18:01,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2022-11-25 17:18:01,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:18:01,932 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-25 17:18:01,935 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:18:01,935 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 17:18:02,058 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 17:18:02,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 597 transitions, 1212 flow [2022-11-25 17:18:02,307 INFO L130 PetriNetUnfolder]: 36/668 cut-off events. [2022-11-25 17:18:02,308 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 17:18:02,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 668 events. 36/668 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2370 event pairs, 0 based on Foata normal form. 0/566 useless extension candidates. Maximal degree in co-relation 534. Up to 8 conditions per place. [2022-11-25 17:18:02,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 572 places, 597 transitions, 1212 flow [2022-11-25 17:18:02,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 572 places, 597 transitions, 1212 flow [2022-11-25 17:18:02,334 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:18:02,334 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 572 places, 597 transitions, 1212 flow [2022-11-25 17:18:02,335 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 572 places, 597 transitions, 1212 flow [2022-11-25 17:18:02,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 597 transitions, 1212 flow [2022-11-25 17:18:02,536 INFO L130 PetriNetUnfolder]: 36/668 cut-off events. [2022-11-25 17:18:02,536 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 17:18:02,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 668 events. 36/668 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2370 event pairs, 0 based on Foata normal form. 0/566 useless extension candidates. Maximal degree in co-relation 534. Up to 8 conditions per place. [2022-11-25 17:18:02,658 INFO L119 LiptonReduction]: Number of co-enabled transitions 150792 [2022-11-25 17:18:38,958 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 100 DAG size of output: 88 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:19:01,717 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 100 DAG size of output: 88 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:19:14,858 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 100 DAG size of output: 88 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:21:04,512 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 102 DAG size of output: 90 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:23:31,985 WARN L233 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 130 DAG size of output: 102 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:24:43,405 INFO L134 LiptonReduction]: Checked pairs total: 799023 [2022-11-25 17:24:43,406 INFO L136 LiptonReduction]: Total number of compositions: 982 [2022-11-25 17:24:43,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:24:43,409 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=PETRI_NET, 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;@6316169a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:24:43,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2022-11-25 17:24:43,410 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:24:43,410 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:24:43,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:43,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:24:43,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2022-11-25 17:24:43,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:43,411 INFO L85 PathProgramCache]: Analyzing trace with hash 3511, now seen corresponding path program 1 times [2022-11-25 17:24:43,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:43,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57837485] [2022-11-25 17:24:43,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:43,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:43,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:43,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57837485] [2022-11-25 17:24:43,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57837485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:43,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:43,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:24:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19411577] [2022-11-25 17:24:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:43,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:24:43,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:43,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:24:43,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:24:43,437 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 512 out of 1579 [2022-11-25 17:24:43,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 204 transitions, 426 flow. Second operand has 2 states, 2 states have (on average 512.5) internal successors, (1025), 2 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:43,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:43,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 512 of 1579 [2022-11-25 17:24:43,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:48,193 INFO L130 PetriNetUnfolder]: 11398/22506 cut-off events. [2022-11-25 17:24:48,205 INFO L131 PetriNetUnfolder]: For 305/355 co-relation queries the response was YES. [2022-11-25 17:24:48,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39439 conditions, 22506 events. 11398/22506 cut-off events. For 305/355 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 186300 event pairs, 9212 based on Foata normal form. 359/18605 useless extension candidates. Maximal degree in co-relation 32699. Up to 16771 conditions per place. [2022-11-25 17:24:48,374 INFO L137 encePairwiseOnDemand]: 1527/1579 looper letters, 81 selfloop transitions, 0 changer transitions 0/152 dead transitions. [2022-11-25 17:24:48,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 152 transitions, 484 flow [2022-11-25 17:24:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:24:48,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:24:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1157 transitions. [2022-11-25 17:24:48,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3663711209626346 [2022-11-25 17:24:48,382 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1157 transitions. [2022-11-25 17:24:48,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1157 transitions. [2022-11-25 17:24:48,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:48,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1157 transitions. [2022-11-25 17:24:48,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 578.5) internal successors, (1157), 2 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1579.0) internal successors, (4737), 3 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,400 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1579.0) internal successors, (4737), 3 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,400 INFO L175 Difference]: Start difference. First operand has 188 places, 204 transitions, 426 flow. Second operand 2 states and 1157 transitions. [2022-11-25 17:24:48,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 152 transitions, 484 flow [2022-11-25 17:24:48,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 152 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:24:48,409 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 322 flow [2022-11-25 17:24:48,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1579, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=322, PETRI_PLACES=143, PETRI_TRANSITIONS=152} [2022-11-25 17:24:48,412 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -45 predicate places. [2022-11-25 17:24:48,412 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 322 flow [2022-11-25 17:24:48,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 512.5) internal successors, (1025), 2 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:48,414 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:48,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:24:48,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2022-11-25 17:24:48,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:48,415 INFO L85 PathProgramCache]: Analyzing trace with hash 572364449, now seen corresponding path program 1 times [2022-11-25 17:24:48,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:48,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785411379] [2022-11-25 17:24:48,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:48,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:24:48,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:48,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785411379] [2022-11-25 17:24:48,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785411379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:48,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:48,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:24:48,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695822171] [2022-11-25 17:24:48,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:48,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:24:48,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:48,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:24:48,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:24:48,749 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 1579 [2022-11-25 17:24:48,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 152 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:48,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:48,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 1579 [2022-11-25 17:24:48,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:53,634 INFO L130 PetriNetUnfolder]: 11398/22507 cut-off events. [2022-11-25 17:24:53,634 INFO L131 PetriNetUnfolder]: For 305/355 co-relation queries the response was YES. [2022-11-25 17:24:53,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39442 conditions, 22507 events. 11398/22507 cut-off events. For 305/355 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 186188 event pairs, 9212 based on Foata normal form. 0/18247 useless extension candidates. Maximal degree in co-relation 39437. Up to 16771 conditions per place. [2022-11-25 17:24:53,756 INFO L137 encePairwiseOnDemand]: 1576/1579 looper letters, 80 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2022-11-25 17:24:53,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 153 transitions, 488 flow [2022-11-25 17:24:53,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:24:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:24:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1604 transitions. [2022-11-25 17:24:53,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3386109351910492 [2022-11-25 17:24:53,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1604 transitions. [2022-11-25 17:24:53,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1604 transitions. [2022-11-25 17:24:53,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:53,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1604 transitions. [2022-11-25 17:24:53,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.6666666666666) internal successors, (1604), 3 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:53,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1579.0) internal successors, (6316), 4 states have internal predecessors, (6316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:53,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1579.0) internal successors, (6316), 4 states have internal predecessors, (6316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:53,787 INFO L175 Difference]: Start difference. First operand has 143 places, 152 transitions, 322 flow. Second operand 3 states and 1604 transitions. [2022-11-25 17:24:53,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 153 transitions, 488 flow [2022-11-25 17:24:53,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:24:53,792 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 334 flow [2022-11-25 17:24:53,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1579, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2022-11-25 17:24:53,793 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -42 predicate places. [2022-11-25 17:24:53,794 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 334 flow [2022-11-25 17:24:53,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:53,795 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:53,795 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:53,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:24:53,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2022-11-25 17:24:53,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:53,797 INFO L85 PathProgramCache]: Analyzing trace with hash -877824030, now seen corresponding path program 1 times [2022-11-25 17:24:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:53,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608968486] [2022-11-25 17:24:53,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:53,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:24:53,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:53,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608968486] [2022-11-25 17:24:53,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608968486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:53,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:53,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:24:53,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372240089] [2022-11-25 17:24:53,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:53,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:24:53,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:53,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:24:53,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:24:54,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 1579 [2022-11-25 17:24:54,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:54,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:54,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 1579 [2022-11-25 17:24:54,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:24:58,183 INFO L130 PetriNetUnfolder]: 9465/20375 cut-off events. [2022-11-25 17:24:58,183 INFO L131 PetriNetUnfolder]: For 262/262 co-relation queries the response was YES. [2022-11-25 17:24:58,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34609 conditions, 20375 events. 9465/20375 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 180876 event pairs, 4694 based on Foata normal form. 0/16999 useless extension candidates. Maximal degree in co-relation 34602. Up to 8141 conditions per place. [2022-11-25 17:24:58,307 INFO L137 encePairwiseOnDemand]: 1574/1579 looper letters, 152 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2022-11-25 17:24:58,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 227 transitions, 800 flow [2022-11-25 17:24:58,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:24:58,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:24:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1669 transitions. [2022-11-25 17:24:58,315 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3523327000211104 [2022-11-25 17:24:58,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1669 transitions. [2022-11-25 17:24:58,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1669 transitions. [2022-11-25 17:24:58,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:24:58,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1669 transitions. [2022-11-25 17:24:58,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:58,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1579.0) internal successors, (6316), 4 states have internal predecessors, (6316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:58,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1579.0) internal successors, (6316), 4 states have internal predecessors, (6316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:58,336 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 334 flow. Second operand 3 states and 1669 transitions. [2022-11-25 17:24:58,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 227 transitions, 800 flow [2022-11-25 17:24:58,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 227 transitions, 796 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:24:58,344 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 352 flow [2022-11-25 17:24:58,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1579, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2022-11-25 17:24:58,345 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -40 predicate places. [2022-11-25 17:24:58,345 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 352 flow [2022-11-25 17:24:58,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:58,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:24:58,347 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:58,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:24:58,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2022-11-25 17:24:58,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1174915145, now seen corresponding path program 1 times [2022-11-25 17:24:58,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:58,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776843887] [2022-11-25 17:24:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:58,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 17:24:58,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:58,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776843887] [2022-11-25 17:24:58,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776843887] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:24:58,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916905533] [2022-11-25 17:24:58,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:58,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:24:58,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:24:58,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:24:58,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:24:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:58,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:24:58,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:24:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 17:24:58,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:24:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 17:24:59,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916905533] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:24:59,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:24:59,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-11-25 17:24:59,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989607462] [2022-11-25 17:24:59,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:24:59,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:24:59,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:24:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:24:59,406 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 1579 [2022-11-25 17:24:59,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 352 flow. Second operand has 8 states, 8 states have (on average 506.625) internal successors, (4053), 8 states have internal predecessors, (4053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:24:59,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:24:59,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 1579 [2022-11-25 17:24:59,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:25:03,390 INFO L130 PetriNetUnfolder]: 9465/19023 cut-off events. [2022-11-25 17:25:03,390 INFO L131 PetriNetUnfolder]: For 3907/3966 co-relation queries the response was YES. [2022-11-25 17:25:03,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35200 conditions, 19023 events. 9465/19023 cut-off events. For 3907/3966 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 156215 event pairs, 7645 based on Foata normal form. 1/16892 useless extension candidates. Maximal degree in co-relation 35192. Up to 14056 conditions per place. [2022-11-25 17:25:03,493 INFO L137 encePairwiseOnDemand]: 1576/1579 looper letters, 82 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2022-11-25 17:25:03,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 156 transitions, 526 flow [2022-11-25 17:25:03,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:25:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:25:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2104 transitions. [2022-11-25 17:25:03,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3331222292590247 [2022-11-25 17:25:03,503 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2104 transitions. [2022-11-25 17:25:03,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2104 transitions. [2022-11-25 17:25:03,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:25:03,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2104 transitions. [2022-11-25 17:25:03,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 526.0) internal successors, (2104), 4 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1579.0) internal successors, (7895), 5 states have internal predecessors, (7895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,540 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1579.0) internal successors, (7895), 5 states have internal predecessors, (7895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,541 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 352 flow. Second operand 4 states and 2104 transitions. [2022-11-25 17:25:03,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 156 transitions, 526 flow [2022-11-25 17:25:03,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 522 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:25:03,560 INFO L231 Difference]: Finished difference. Result has 151 places, 156 transitions, 364 flow [2022-11-25 17:25:03,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1579, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=151, PETRI_TRANSITIONS=156} [2022-11-25 17:25:03,562 INFO L288 CegarLoopForPetriNet]: 188 programPoint places, -37 predicate places. [2022-11-25 17:25:03,563 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 156 transitions, 364 flow [2022-11-25 17:25:03,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 506.625) internal successors, (4053), 8 states have internal predecessors, (4053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:25:03,565 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:25:03,565 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 17:25:03,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:25:03,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db88df15-af4a-4a29-876f-3e67f483df20/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:25:03,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2022-11-25 17:25:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:03,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1782812792, now seen corresponding path program 2 times [2022-11-25 17:25:03,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:03,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129529899] [2022-11-25 17:25:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:03,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:25:03,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:25:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:25:03,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:25:03,900 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:25:03,901 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (86 of 87 remaining) [2022-11-25 17:25:03,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (85 of 87 remaining) [2022-11-25 17:25:03,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (84 of 87 remaining) [2022-11-25 17:25:03,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (83 of 87 remaining) [2022-11-25 17:25:03,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (82 of 87 remaining) [2022-11-25 17:25:03,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (81 of 87 remaining) [2022-11-25 17:25:03,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (80 of 87 remaining) [2022-11-25 17:25:03,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (79 of 87 remaining) [2022-11-25 17:25:03,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (78 of 87 remaining) [2022-11-25 17:25:03,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (77 of 87 remaining) [2022-11-25 17:25:03,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (76 of 87 remaining) [2022-11-25 17:25:03,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (75 of 87 remaining) [2022-11-25 17:25:03,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (74 of 87 remaining) [2022-11-25 17:25:03,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (73 of 87 remaining) [2022-11-25 17:25:03,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (72 of 87 remaining) [2022-11-25 17:25:03,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (71 of 87 remaining) [2022-11-25 17:25:03,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (70 of 87 remaining) [2022-11-25 17:25:03,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (69 of 87 remaining) [2022-11-25 17:25:03,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (68 of 87 remaining) [2022-11-25 17:25:03,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (67 of 87 remaining) [2022-11-25 17:25:03,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (66 of 87 remaining) [2022-11-25 17:25:03,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (65 of 87 remaining) [2022-11-25 17:25:03,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (64 of 87 remaining) [2022-11-25 17:25:03,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (63 of 87 remaining) [2022-11-25 17:25:03,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (62 of 87 remaining) [2022-11-25 17:25:03,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (61 of 87 remaining) [2022-11-25 17:25:03,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (60 of 87 remaining) [2022-11-25 17:25:03,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (59 of 87 remaining) [2022-11-25 17:25:03,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (58 of 87 remaining) [2022-11-25 17:25:03,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (57 of 87 remaining) [2022-11-25 17:25:03,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (56 of 87 remaining) [2022-11-25 17:25:03,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (55 of 87 remaining) [2022-11-25 17:25:03,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (54 of 87 remaining) [2022-11-25 17:25:03,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (53 of 87 remaining) [2022-11-25 17:25:03,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (52 of 87 remaining) [2022-11-25 17:25:03,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (51 of 87 remaining) [2022-11-25 17:25:03,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (50 of 87 remaining) [2022-11-25 17:25:03,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (49 of 87 remaining) [2022-11-25 17:25:03,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (48 of 87 remaining) [2022-11-25 17:25:03,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (47 of 87 remaining) [2022-11-25 17:25:03,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (46 of 87 remaining) [2022-11-25 17:25:03,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (45 of 87 remaining) [2022-11-25 17:25:03,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (44 of 87 remaining) [2022-11-25 17:25:03,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (43 of 87 remaining) [2022-11-25 17:25:03,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (42 of 87 remaining) [2022-11-25 17:25:03,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (41 of 87 remaining) [2022-11-25 17:25:03,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (40 of 87 remaining) [2022-11-25 17:25:03,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (39 of 87 remaining) [2022-11-25 17:25:03,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (38 of 87 remaining) [2022-11-25 17:25:03,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (37 of 87 remaining) [2022-11-25 17:25:03,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (36 of 87 remaining) [2022-11-25 17:25:03,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (35 of 87 remaining) [2022-11-25 17:25:03,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (34 of 87 remaining) [2022-11-25 17:25:03,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (33 of 87 remaining) [2022-11-25 17:25:03,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (32 of 87 remaining) [2022-11-25 17:25:03,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (31 of 87 remaining) [2022-11-25 17:25:03,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (30 of 87 remaining) [2022-11-25 17:25:03,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (29 of 87 remaining) [2022-11-25 17:25:03,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (28 of 87 remaining) [2022-11-25 17:25:03,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (27 of 87 remaining) [2022-11-25 17:25:03,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (26 of 87 remaining) [2022-11-25 17:25:03,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (25 of 87 remaining) [2022-11-25 17:25:03,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (24 of 87 remaining) [2022-11-25 17:25:03,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONDATA_RACE (23 of 87 remaining) [2022-11-25 17:25:03,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 87 remaining) [2022-11-25 17:25:03,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (21 of 87 remaining) [2022-11-25 17:25:03,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (20 of 87 remaining) [2022-11-25 17:25:03,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 87 remaining) [2022-11-25 17:25:03,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (18 of 87 remaining) [2022-11-25 17:25:03,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (17 of 87 remaining) [2022-11-25 17:25:03,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (16 of 87 remaining) [2022-11-25 17:25:03,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (15 of 87 remaining) [2022-11-25 17:25:03,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (14 of 87 remaining) [2022-11-25 17:25:03,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (13 of 87 remaining) [2022-11-25 17:25:03,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (12 of 87 remaining) [2022-11-25 17:25:03,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (11 of 87 remaining) [2022-11-25 17:25:03,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (10 of 87 remaining) [2022-11-25 17:25:03,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 87 remaining) [2022-11-25 17:25:03,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (8 of 87 remaining) [2022-11-25 17:25:03,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (7 of 87 remaining) [2022-11-25 17:25:03,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (6 of 87 remaining) [2022-11-25 17:25:03,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (5 of 87 remaining) [2022-11-25 17:25:03,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 87 remaining) [2022-11-25 17:25:03,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 87 remaining) [2022-11-25 17:25:03,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 87 remaining) [2022-11-25 17:25:03,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 87 remaining) [2022-11-25 17:25:03,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 87 remaining) [2022-11-25 17:25:03,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:25:03,923 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-11-25 17:25:03,925 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:25:03,925 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-25 17:25:04,065 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 17:25:04,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 807 places, 843 transitions, 1716 flow [2022-11-25 17:25:04,667 INFO L130 PetriNetUnfolder]: 58/1005 cut-off events. [2022-11-25 17:25:04,668 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-25 17:25:04,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 1005 events. 58/1005 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4750 event pairs, 1 based on Foata normal form. 0/850 useless extension candidates. Maximal degree in co-relation 820. Up to 16 conditions per place. [2022-11-25 17:25:04,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 807 places, 843 transitions, 1716 flow [2022-11-25 17:25:04,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 807 places, 843 transitions, 1716 flow [2022-11-25 17:25:04,744 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:25:04,744 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 807 places, 843 transitions, 1716 flow [2022-11-25 17:25:04,745 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 807 places, 843 transitions, 1716 flow [2022-11-25 17:25:04,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 807 places, 843 transitions, 1716 flow [2022-11-25 17:25:05,211 INFO L130 PetriNetUnfolder]: 58/1005 cut-off events. [2022-11-25 17:25:05,211 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-25 17:25:05,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 1005 events. 58/1005 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4750 event pairs, 1 based on Foata normal form. 0/850 useless extension candidates. Maximal degree in co-relation 820. Up to 16 conditions per place. [2022-11-25 17:25:05,426 INFO L119 LiptonReduction]: Number of co-enabled transitions 406992 [2022-11-25 17:25:23,851 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 100 DAG size of output: 88 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:25:44,910 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 100 DAG size of output: 88 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:26:01,848 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 100 DAG size of output: 88 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:26:22,398 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 100 DAG size of output: 88 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:27:00,175 WARN L233 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 102 DAG size of output: 90 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:27:16,063 WARN L233 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 102 DAG size of output: 90 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)