./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/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_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/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_83fe5ff4-75b9-4138-b5a1-3222629138bb/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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- 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 16:41:39,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:41:39,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:41:39,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:41:39,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:41:39,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:41:39,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:41:39,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:41:39,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:41:39,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:41:39,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:41:39,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:41:39,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:41:39,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:41:39,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:41:39,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:41:39,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:41:39,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:41:39,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:41:39,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:41:39,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:41:39,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:41:39,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:41:39,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:41:39,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:41:39,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:41:39,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:41:39,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:41:39,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:41:39,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:41:39,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:41:39,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:41:39,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:41:39,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:41:39,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:41:39,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:41:39,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:41:39,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:41:39,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:41:39,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:41:39,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:41:39,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 16:41:39,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:41:39,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:41:39,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:41:39,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:41:39,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:41:39,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:41:39,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:41:39,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:41:39,791 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:41:39,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:41:39,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:41:39,793 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:41:39,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:41:39,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:41:39,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:41:39,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:41:39,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:41:39,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:41:39,794 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 16:41:39,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:41:39,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:41:39,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:41:39,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:41:39,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:41:39,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:41:39,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:41:39,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:41:39,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:41:39,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:41:39,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:41:39,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:41:39,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:41:39,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:41:39,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:41:39,798 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:41:39,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:41:39,799 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_83fe5ff4-75b9-4138-b5a1-3222629138bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2022-11-25 16:41:40,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:41:40,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:41:40,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:41:40,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:41:40,125 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:41:40,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-25 16:41:43,365 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:41:43,698 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:41:43,699 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-25 16:41:43,720 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/data/4ed556798/248740f25d1248ce984e0153d3799945/FLAG5b8c823d8 [2022-11-25 16:41:43,740 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/data/4ed556798/248740f25d1248ce984e0153d3799945 [2022-11-25 16:41:43,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:41:43,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:41:43,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:41:43,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:41:43,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:41:43,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:41:43" (1/1) ... [2022-11-25 16:41:43,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2ddf8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:43, skipping insertion in model container [2022-11-25 16:41:43,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:41:43" (1/1) ... [2022-11-25 16:41:43,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:41:43,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:41:44,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:41:44,430 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:41:44,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:41:44,536 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:41:44,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44 WrapperNode [2022-11-25 16:41:44,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:41:44,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:41:44,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:41:44,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:41:44,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,587 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-11-25 16:41:44,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:41:44,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:41:44,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:41:44,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:41:44,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,654 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:41:44,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:41:44,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:41:44,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:41:44,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (1/1) ... [2022-11-25 16:41:44,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:41:44,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:41:44,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:41:44,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:41:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:41:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:41:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:41:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 16:41:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:41:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 16:41:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 16:41:44,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:41:44,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:41:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:41:44,782 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 16:41:44,998 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:41:45,001 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:41:45,438 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:41:45,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:41:45,452 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:41:45,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:41:45 BoogieIcfgContainer [2022-11-25 16:41:45,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:41:45,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:41:45,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:41:45,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:41:45,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:41:43" (1/3) ... [2022-11-25 16:41:45,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a5f126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:41:45, skipping insertion in model container [2022-11-25 16:41:45,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:44" (2/3) ... [2022-11-25 16:41:45,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a5f126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:41:45, skipping insertion in model container [2022-11-25 16:41:45,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:41:45" (3/3) ... [2022-11-25 16:41:45,469 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2022-11-25 16:41:45,479 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:41:45,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:41:45,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 16:41:45,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:41:45,582 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 16:41:45,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 189 flow [2022-11-25 16:41:45,675 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-11-25 16:41:45,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:41:45,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 1/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-25 16:41:45,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 189 flow [2022-11-25 16:41:45,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 89 transitions, 181 flow [2022-11-25 16:41:45,689 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:41:45,706 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 89 transitions, 181 flow [2022-11-25 16:41:45,709 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 89 transitions, 181 flow [2022-11-25 16:41:45,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 181 flow [2022-11-25 16:41:45,763 INFO L130 PetriNetUnfolder]: 1/89 cut-off events. [2022-11-25 16:41:45,770 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:41:45,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 1/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-11-25 16:41:45,772 INFO L119 LiptonReduction]: Number of co-enabled transitions 600 [2022-11-25 16:41:52,957 INFO L134 LiptonReduction]: Checked pairs total: 3034 [2022-11-25 16:41:52,957 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-11-25 16:41:52,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:41:52,981 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;@7f748f41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:41:52,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 16:41:52,988 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-11-25 16:41:52,988 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:41:52,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:41:52,989 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:41:52,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:41:52,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:41:52,996 INFO L85 PathProgramCache]: Analyzing trace with hash -234279197, now seen corresponding path program 1 times [2022-11-25 16:41:53,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:41:53,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129126530] [2022-11-25 16:41:53,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:41:53,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:41:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:41:53,749 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 16:41:53,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:41:53,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129126530] [2022-11-25 16:41:53,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129126530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:41:53,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:41:53,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:41:53,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567611854] [2022-11-25 16:41:53,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:41:53,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:41:53,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:41:53,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:41:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:41:53,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 169 [2022-11-25 16:41:54,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 16:41:54,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:41:54,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 169 [2022-11-25 16:41:54,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:41:54,213 INFO L130 PetriNetUnfolder]: 72/186 cut-off events. [2022-11-25 16:41:54,218 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:41:54,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 186 events. 72/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 738 event pairs, 19 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 348. Up to 117 conditions per place. [2022-11-25 16:41:54,221 INFO L137 encePairwiseOnDemand]: 158/169 looper letters, 20 selfloop transitions, 22 changer transitions 4/49 dead transitions. [2022-11-25 16:41:54,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 49 transitions, 193 flow [2022-11-25 16:41:54,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:41:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:41:54,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2022-11-25 16:41:54,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5078895463510849 [2022-11-25 16:41:54,245 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2022-11-25 16:41:54,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2022-11-25 16:41:54,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:41:54,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2022-11-25 16:41:54,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states 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 16:41:54,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 16:41:54,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 16:41:54,274 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 515 transitions. [2022-11-25 16:41:54,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 49 transitions, 193 flow [2022-11-25 16:41:54,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 49 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:41:54,280 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2022-11-25 16:41:54,282 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2022-11-25 16:41:54,287 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2022-11-25 16:41:54,287 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2022-11-25 16:41:54,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 16:41:54,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:41:54,288 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:41:54,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:41:54,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:41:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:41:54,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1012133688, now seen corresponding path program 1 times [2022-11-25 16:41:54,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:41:54,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918909707] [2022-11-25 16:41:54,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:41:54,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:41:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:41:54,699 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 16:41:54,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:41:54,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918909707] [2022-11-25 16:41:54,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918909707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:41:54,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:41:54,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:41:54,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008471135] [2022-11-25 16:41:54,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:41:54,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:41:54,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:41:54,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:41:54,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:41:54,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 169 [2022-11-25 16:41:54,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 16:41:54,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:41:54,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 169 [2022-11-25 16:41:54,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:41:54,967 INFO L130 PetriNetUnfolder]: 113/268 cut-off events. [2022-11-25 16:41:54,967 INFO L131 PetriNetUnfolder]: For 102/108 co-relation queries the response was YES. [2022-11-25 16:41:54,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 268 events. 113/268 cut-off events. For 102/108 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1145 event pairs, 14 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 782. Up to 166 conditions per place. [2022-11-25 16:41:54,975 INFO L137 encePairwiseOnDemand]: 158/169 looper letters, 40 selfloop transitions, 29 changer transitions 11/84 dead transitions. [2022-11-25 16:41:54,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 84 transitions, 532 flow [2022-11-25 16:41:54,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:41:54,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:41:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2022-11-25 16:41:54,982 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-11-25 16:41:54,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2022-11-25 16:41:54,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2022-11-25 16:41:54,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:41:54,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2022-11-25 16:41:54,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states 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 16:41:54,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 16:41:54,988 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states 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 16:41:54,989 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 507 transitions. [2022-11-25 16:41:54,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 84 transitions, 532 flow [2022-11-25 16:41:54,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 84 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:41:54,997 INFO L231 Difference]: Finished difference. Result has 43 places, 65 transitions, 446 flow [2022-11-25 16:41:54,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=43, PETRI_TRANSITIONS=65} [2022-11-25 16:41:55,001 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2022-11-25 16:41:55,002 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 65 transitions, 446 flow [2022-11-25 16:41:55,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 16:41:55,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:41:55,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:41:55,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:41:55,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:41:55,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:41:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1942901666, now seen corresponding path program 1 times [2022-11-25 16:41:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:41:55,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032181162] [2022-11-25 16:41:55,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:41:55,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:41:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:41:55,761 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 16:41:55,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:41:55,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032181162] [2022-11-25 16:41:55,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032181162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:41:55,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:41:55,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:41:55,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512217663] [2022-11-25 16:41:55,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:41:55,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:41:55,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:41:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:41:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:41:56,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:41:56,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 65 transitions, 446 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:41:56,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:41:56,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:41:56,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:41:56,322 INFO L130 PetriNetUnfolder]: 148/370 cut-off events. [2022-11-25 16:41:56,322 INFO L131 PetriNetUnfolder]: For 426/429 co-relation queries the response was YES. [2022-11-25 16:41:56,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 370 events. 148/370 cut-off events. For 426/429 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1862 event pairs, 8 based on Foata normal form. 10/380 useless extension candidates. Maximal degree in co-relation 1456. Up to 136 conditions per place. [2022-11-25 16:41:56,326 INFO L137 encePairwiseOnDemand]: 158/169 looper letters, 84 selfloop transitions, 34 changer transitions 13/135 dead transitions. [2022-11-25 16:41:56,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 135 transitions, 1186 flow [2022-11-25 16:41:56,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:41:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 16:41:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 727 transitions. [2022-11-25 16:41:56,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4301775147928994 [2022-11-25 16:41:56,331 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 727 transitions. [2022-11-25 16:41:56,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 727 transitions. [2022-11-25 16:41:56,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:41:56,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 727 transitions. [2022-11-25 16:41:56,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.7) internal successors, (727), 10 states have internal predecessors, (727), 0 states have call successors, (0), 0 states 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 16:41:56,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:41:56,338 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:41:56,339 INFO L175 Difference]: Start difference. First operand has 43 places, 65 transitions, 446 flow. Second operand 10 states and 727 transitions. [2022-11-25 16:41:56,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 135 transitions, 1186 flow [2022-11-25 16:41:56,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 135 transitions, 1150 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-25 16:41:56,349 INFO L231 Difference]: Finished difference. Result has 58 places, 87 transitions, 722 flow [2022-11-25 16:41:56,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=722, PETRI_PLACES=58, PETRI_TRANSITIONS=87} [2022-11-25 16:41:56,350 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 34 predicate places. [2022-11-25 16:41:56,350 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 87 transitions, 722 flow [2022-11-25 16:41:56,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:41:56,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:41:56,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:41:56,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:41:56,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:41:56,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:41:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash -87971486, now seen corresponding path program 2 times [2022-11-25 16:41:56,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:41:56,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084827113] [2022-11-25 16:41:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:41:56,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:41:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:41:57,180 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 16:41:57,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:41:57,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084827113] [2022-11-25 16:41:57,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084827113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:41:57,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:41:57,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:41:57,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380638209] [2022-11-25 16:41:57,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:41:57,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:41:57,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:41:57,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:41:57,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:41:57,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:41:57,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 87 transitions, 722 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:41:57,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:41:57,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:41:57,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:41:57,940 INFO L130 PetriNetUnfolder]: 154/385 cut-off events. [2022-11-25 16:41:57,940 INFO L131 PetriNetUnfolder]: For 969/972 co-relation queries the response was YES. [2022-11-25 16:41:57,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1855 conditions, 385 events. 154/385 cut-off events. For 969/972 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1947 event pairs, 12 based on Foata normal form. 6/391 useless extension candidates. Maximal degree in co-relation 1829. Up to 128 conditions per place. [2022-11-25 16:41:57,945 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 62 selfloop transitions, 61 changer transitions 31/158 dead transitions. [2022-11-25 16:41:57,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 158 transitions, 1572 flow [2022-11-25 16:41:57,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:41:57,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:41:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 809 transitions. [2022-11-25 16:41:57,948 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43518020441097366 [2022-11-25 16:41:57,948 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 809 transitions. [2022-11-25 16:41:57,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 809 transitions. [2022-11-25 16:41:57,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:41:57,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 809 transitions. [2022-11-25 16:41:57,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.54545454545455) internal successors, (809), 11 states have internal predecessors, (809), 0 states have call successors, (0), 0 states 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 16:41:57,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:41:57,955 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:41:57,955 INFO L175 Difference]: Start difference. First operand has 58 places, 87 transitions, 722 flow. Second operand 11 states and 809 transitions. [2022-11-25 16:41:57,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 158 transitions, 1572 flow [2022-11-25 16:41:57,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 158 transitions, 1571 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:41:57,967 INFO L231 Difference]: Finished difference. Result has 72 places, 96 transitions, 1012 flow [2022-11-25 16:41:57,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1012, PETRI_PLACES=72, PETRI_TRANSITIONS=96} [2022-11-25 16:41:57,968 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 48 predicate places. [2022-11-25 16:41:57,968 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 96 transitions, 1012 flow [2022-11-25 16:41:57,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:41:57,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:41:57,969 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:41:57,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:41:57,970 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:41:57,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:41:57,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1681887865, now seen corresponding path program 1 times [2022-11-25 16:41:57,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:41:57,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678066123] [2022-11-25 16:41:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:41:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:41:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:41:58,583 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 16:41:58,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:41:58,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678066123] [2022-11-25 16:41:58,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678066123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:41:58,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:41:58,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:41:58,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268753589] [2022-11-25 16:41:58,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:41:58,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:41:58,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:41:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:41:58,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:41:58,955 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:41:58,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 96 transitions, 1012 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:41:58,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:41:58,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:41:58,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:41:59,215 INFO L130 PetriNetUnfolder]: 170/412 cut-off events. [2022-11-25 16:41:59,216 INFO L131 PetriNetUnfolder]: For 1800/1807 co-relation queries the response was YES. [2022-11-25 16:41:59,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 412 events. 170/412 cut-off events. For 1800/1807 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2104 event pairs, 4 based on Foata normal form. 13/424 useless extension candidates. Maximal degree in co-relation 2352. Up to 143 conditions per place. [2022-11-25 16:41:59,221 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 116 selfloop transitions, 36 changer transitions 17/174 dead transitions. [2022-11-25 16:41:59,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 174 transitions, 2184 flow [2022-11-25 16:41:59,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:41:59,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 16:41:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 729 transitions. [2022-11-25 16:41:59,226 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43136094674556213 [2022-11-25 16:41:59,226 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 729 transitions. [2022-11-25 16:41:59,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 729 transitions. [2022-11-25 16:41:59,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:41:59,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 729 transitions. [2022-11-25 16:41:59,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 0 states have call successors, (0), 0 states 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 16:41:59,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:41:59,234 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:41:59,234 INFO L175 Difference]: Start difference. First operand has 72 places, 96 transitions, 1012 flow. Second operand 10 states and 729 transitions. [2022-11-25 16:41:59,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 174 transitions, 2184 flow [2022-11-25 16:41:59,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 174 transitions, 2149 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-11-25 16:41:59,261 INFO L231 Difference]: Finished difference. Result has 80 places, 114 transitions, 1295 flow [2022-11-25 16:41:59,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1295, PETRI_PLACES=80, PETRI_TRANSITIONS=114} [2022-11-25 16:41:59,264 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 56 predicate places. [2022-11-25 16:41:59,265 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 114 transitions, 1295 flow [2022-11-25 16:41:59,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:41:59,265 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:41:59,266 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:41:59,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:41:59,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:41:59,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:41:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash -40603796, now seen corresponding path program 3 times [2022-11-25 16:41:59,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:41:59,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154255279] [2022-11-25 16:41:59,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:41:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:41:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:00,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:00,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154255279] [2022-11-25 16:42:00,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154255279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:00,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:00,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:00,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688083604] [2022-11-25 16:42:00,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:00,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:00,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:00,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:00,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 114 transitions, 1295 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:00,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:00,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:00,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:00,999 INFO L130 PetriNetUnfolder]: 165/437 cut-off events. [2022-11-25 16:42:00,999 INFO L131 PetriNetUnfolder]: For 2637/2638 co-relation queries the response was YES. [2022-11-25 16:42:01,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2878 conditions, 437 events. 165/437 cut-off events. For 2637/2638 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2430 event pairs, 19 based on Foata normal form. 11/448 useless extension candidates. Maximal degree in co-relation 2841. Up to 164 conditions per place. [2022-11-25 16:42:01,005 INFO L137 encePairwiseOnDemand]: 155/169 looper letters, 88 selfloop transitions, 47 changer transitions 30/170 dead transitions. [2022-11-25 16:42:01,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 170 transitions, 2251 flow [2022-11-25 16:42:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:42:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 16:42:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 732 transitions. [2022-11-25 16:42:01,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4331360946745562 [2022-11-25 16:42:01,008 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 732 transitions. [2022-11-25 16:42:01,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 732 transitions. [2022-11-25 16:42:01,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:01,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 732 transitions. [2022-11-25 16:42:01,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.2) internal successors, (732), 10 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 16:42:01,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:01,015 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:01,015 INFO L175 Difference]: Start difference. First operand has 80 places, 114 transitions, 1295 flow. Second operand 10 states and 732 transitions. [2022-11-25 16:42:01,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 170 transitions, 2251 flow [2022-11-25 16:42:01,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 170 transitions, 2193 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-11-25 16:42:01,038 INFO L231 Difference]: Finished difference. Result has 86 places, 114 transitions, 1394 flow [2022-11-25 16:42:01,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=1261, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1394, PETRI_PLACES=86, PETRI_TRANSITIONS=114} [2022-11-25 16:42:01,040 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 62 predicate places. [2022-11-25 16:42:01,040 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 114 transitions, 1394 flow [2022-11-25 16:42:01,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:01,040 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:42:01,041 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:01,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:42:01,041 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:42:01,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash 772506453, now seen corresponding path program 2 times [2022-11-25 16:42:01,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:01,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055224015] [2022-11-25 16:42:01,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:01,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:01,472 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 16:42:01,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:01,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055224015] [2022-11-25 16:42:01,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055224015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:01,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:01,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822983759] [2022-11-25 16:42:01,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:01,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:01,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:01,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:01,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:01,854 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:01,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 114 transitions, 1394 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:01,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:01,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:01,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:02,247 INFO L130 PetriNetUnfolder]: 179/467 cut-off events. [2022-11-25 16:42:02,248 INFO L131 PetriNetUnfolder]: For 3301/3311 co-relation queries the response was YES. [2022-11-25 16:42:02,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3273 conditions, 467 events. 179/467 cut-off events. For 3301/3311 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2613 event pairs, 10 based on Foata normal form. 10/477 useless extension candidates. Maximal degree in co-relation 3234. Up to 172 conditions per place. [2022-11-25 16:42:02,254 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 121 selfloop transitions, 35 changer transitions 42/203 dead transitions. [2022-11-25 16:42:02,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 203 transitions, 2958 flow [2022-11-25 16:42:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:42:02,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:42:02,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 806 transitions. [2022-11-25 16:42:02,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43356643356643354 [2022-11-25 16:42:02,258 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 806 transitions. [2022-11-25 16:42:02,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 806 transitions. [2022-11-25 16:42:02,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:02,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 806 transitions. [2022-11-25 16:42:02,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.27272727272727) internal successors, (806), 11 states have internal predecessors, (806), 0 states have call successors, (0), 0 states 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 16:42:02,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:42:02,264 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:42:02,265 INFO L175 Difference]: Start difference. First operand has 86 places, 114 transitions, 1394 flow. Second operand 11 states and 806 transitions. [2022-11-25 16:42:02,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 203 transitions, 2958 flow [2022-11-25 16:42:02,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 203 transitions, 2713 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-25 16:42:02,304 INFO L231 Difference]: Finished difference. Result has 90 places, 129 transitions, 1585 flow [2022-11-25 16:42:02,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1585, PETRI_PLACES=90, PETRI_TRANSITIONS=129} [2022-11-25 16:42:02,305 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 66 predicate places. [2022-11-25 16:42:02,305 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 129 transitions, 1585 flow [2022-11-25 16:42:02,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:02,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:42:02,306 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:02,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:42:02,306 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:42:02,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1448959118, now seen corresponding path program 4 times [2022-11-25 16:42:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:02,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521587215] [2022-11-25 16:42:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:02,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:02,948 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 16:42:02,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:02,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521587215] [2022-11-25 16:42:02,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521587215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:02,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:02,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:02,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206211739] [2022-11-25 16:42:02,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:02,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:02,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:02,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:02,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:03,331 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:03,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 129 transitions, 1585 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:03,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:03,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:03,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:03,623 INFO L130 PetriNetUnfolder]: 160/455 cut-off events. [2022-11-25 16:42:03,623 INFO L131 PetriNetUnfolder]: For 3530/3535 co-relation queries the response was YES. [2022-11-25 16:42:03,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3171 conditions, 455 events. 160/455 cut-off events. For 3530/3535 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2695 event pairs, 23 based on Foata normal form. 13/468 useless extension candidates. Maximal degree in co-relation 3129. Up to 168 conditions per place. [2022-11-25 16:42:03,629 INFO L137 encePairwiseOnDemand]: 156/169 looper letters, 76 selfloop transitions, 19 changer transitions 94/195 dead transitions. [2022-11-25 16:42:03,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 195 transitions, 2778 flow [2022-11-25 16:42:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:42:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 16:42:03,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 727 transitions. [2022-11-25 16:42:03,632 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4301775147928994 [2022-11-25 16:42:03,632 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 727 transitions. [2022-11-25 16:42:03,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 727 transitions. [2022-11-25 16:42:03,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:03,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 727 transitions. [2022-11-25 16:42:03,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.7) internal successors, (727), 10 states have internal predecessors, (727), 0 states have call successors, (0), 0 states 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 16:42:03,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:03,637 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:03,638 INFO L175 Difference]: Start difference. First operand has 90 places, 129 transitions, 1585 flow. Second operand 10 states and 727 transitions. [2022-11-25 16:42:03,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 195 transitions, 2778 flow [2022-11-25 16:42:03,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 195 transitions, 2718 flow, removed 20 selfloop flow, removed 2 redundant places. [2022-11-25 16:42:03,668 INFO L231 Difference]: Finished difference. Result has 101 places, 96 transitions, 1230 flow [2022-11-25 16:42:03,669 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1230, PETRI_PLACES=101, PETRI_TRANSITIONS=96} [2022-11-25 16:42:03,669 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 77 predicate places. [2022-11-25 16:42:03,669 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 1230 flow [2022-11-25 16:42:03,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:03,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:42:03,670 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:03,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:42:03,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:42:03,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1455008254, now seen corresponding path program 5 times [2022-11-25 16:42:03,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:03,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497594163] [2022-11-25 16:42:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:03,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:04,661 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 16:42:04,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:04,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497594163] [2022-11-25 16:42:04,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497594163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:04,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:04,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:04,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696857921] [2022-11-25 16:42:04,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:04,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:04,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:04,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:05,093 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:05,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 1230 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:05,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:05,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:05,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:05,509 INFO L130 PetriNetUnfolder]: 79/259 cut-off events. [2022-11-25 16:42:05,509 INFO L131 PetriNetUnfolder]: For 2251/2253 co-relation queries the response was YES. [2022-11-25 16:42:05,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 259 events. 79/259 cut-off events. For 2251/2253 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1362 event pairs, 9 based on Foata normal form. 3/261 useless extension candidates. Maximal degree in co-relation 1838. Up to 123 conditions per place. [2022-11-25 16:42:05,513 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 39 selfloop transitions, 53 changer transitions 16/114 dead transitions. [2022-11-25 16:42:05,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 114 transitions, 1681 flow [2022-11-25 16:42:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:42:05,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 16:42:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 721 transitions. [2022-11-25 16:42:05,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42662721893491123 [2022-11-25 16:42:05,517 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 721 transitions. [2022-11-25 16:42:05,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 721 transitions. [2022-11-25 16:42:05,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:05,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 721 transitions. [2022-11-25 16:42:05,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.1) internal successors, (721), 10 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 16:42:05,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:05,523 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:05,523 INFO L175 Difference]: Start difference. First operand has 101 places, 96 transitions, 1230 flow. Second operand 10 states and 721 transitions. [2022-11-25 16:42:05,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 114 transitions, 1681 flow [2022-11-25 16:42:05,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 114 transitions, 1547 flow, removed 36 selfloop flow, removed 8 redundant places. [2022-11-25 16:42:05,549 INFO L231 Difference]: Finished difference. Result has 104 places, 95 transitions, 1200 flow [2022-11-25 16:42:05,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1200, PETRI_PLACES=104, PETRI_TRANSITIONS=95} [2022-11-25 16:42:05,551 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 80 predicate places. [2022-11-25 16:42:05,551 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 95 transitions, 1200 flow [2022-11-25 16:42:05,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:05,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:42:05,554 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:05,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:42:05,556 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:42:05,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:05,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1439787874, now seen corresponding path program 6 times [2022-11-25 16:42:05,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:05,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761426354] [2022-11-25 16:42:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:05,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:06,526 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 16:42:06,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:06,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761426354] [2022-11-25 16:42:06,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761426354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:06,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:06,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:06,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236118067] [2022-11-25 16:42:06,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:06,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:06,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:06,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:06,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:07,026 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:07,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 1200 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:07,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:07,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:07,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:07,250 INFO L130 PetriNetUnfolder]: 68/210 cut-off events. [2022-11-25 16:42:07,251 INFO L131 PetriNetUnfolder]: For 1814/1815 co-relation queries the response was YES. [2022-11-25 16:42:07,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1514 conditions, 210 events. 68/210 cut-off events. For 1814/1815 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 979 event pairs, 9 based on Foata normal form. 9/219 useless extension candidates. Maximal degree in co-relation 1467. Up to 76 conditions per place. [2022-11-25 16:42:07,254 INFO L137 encePairwiseOnDemand]: 157/169 looper letters, 41 selfloop transitions, 14 changer transitions 48/107 dead transitions. [2022-11-25 16:42:07,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 107 transitions, 1532 flow [2022-11-25 16:42:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:42:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 16:42:07,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 717 transitions. [2022-11-25 16:42:07,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4242603550295858 [2022-11-25 16:42:07,257 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 717 transitions. [2022-11-25 16:42:07,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 717 transitions. [2022-11-25 16:42:07,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:07,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 717 transitions. [2022-11-25 16:42:07,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.7) internal successors, (717), 10 states have internal predecessors, (717), 0 states have call successors, (0), 0 states 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 16:42:07,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:07,263 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:07,264 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 1200 flow. Second operand 10 states and 717 transitions. [2022-11-25 16:42:07,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 107 transitions, 1532 flow [2022-11-25 16:42:07,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 107 transitions, 1381 flow, removed 45 selfloop flow, removed 12 redundant places. [2022-11-25 16:42:07,300 INFO L231 Difference]: Finished difference. Result has 98 places, 55 transitions, 610 flow [2022-11-25 16:42:07,301 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=1041, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=610, PETRI_PLACES=98, PETRI_TRANSITIONS=55} [2022-11-25 16:42:07,302 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 74 predicate places. [2022-11-25 16:42:07,303 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 55 transitions, 610 flow [2022-11-25 16:42:07,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:07,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:42:07,303 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:07,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 16:42:07,304 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:42:07,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:07,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1554210553, now seen corresponding path program 3 times [2022-11-25 16:42:07,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:07,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616930355] [2022-11-25 16:42:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:07,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:07,778 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 16:42:07,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:07,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616930355] [2022-11-25 16:42:07,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616930355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:07,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:07,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:07,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501478193] [2022-11-25 16:42:07,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:07,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:07,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:07,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:08,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:08,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 55 transitions, 610 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:08,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:08,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:08,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:08,454 INFO L130 PetriNetUnfolder]: 71/198 cut-off events. [2022-11-25 16:42:08,455 INFO L131 PetriNetUnfolder]: For 1613/1613 co-relation queries the response was YES. [2022-11-25 16:42:08,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1339 conditions, 198 events. 71/198 cut-off events. For 1613/1613 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 854 event pairs, 6 based on Foata normal form. 10/208 useless extension candidates. Maximal degree in co-relation 1308. Up to 68 conditions per place. [2022-11-25 16:42:08,457 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 35 selfloop transitions, 16 changer transitions 46/100 dead transitions. [2022-11-25 16:42:08,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 100 transitions, 1355 flow [2022-11-25 16:42:08,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:42:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:42:08,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 783 transitions. [2022-11-25 16:42:08,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42119419042495965 [2022-11-25 16:42:08,462 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 783 transitions. [2022-11-25 16:42:08,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 783 transitions. [2022-11-25 16:42:08,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:08,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 783 transitions. [2022-11-25 16:42:08,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 71.18181818181819) internal successors, (783), 11 states have internal predecessors, (783), 0 states have call successors, (0), 0 states 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 16:42:08,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:42:08,469 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:42:08,469 INFO L175 Difference]: Start difference. First operand has 98 places, 55 transitions, 610 flow. Second operand 11 states and 783 transitions. [2022-11-25 16:42:08,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 100 transitions, 1355 flow [2022-11-25 16:42:08,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 100 transitions, 950 flow, removed 17 selfloop flow, removed 33 redundant places. [2022-11-25 16:42:08,479 INFO L231 Difference]: Finished difference. Result has 67 places, 42 transitions, 379 flow [2022-11-25 16:42:08,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=379, PETRI_PLACES=67, PETRI_TRANSITIONS=42} [2022-11-25 16:42:08,480 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 43 predicate places. [2022-11-25 16:42:08,480 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 379 flow [2022-11-25 16:42:08,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:08,481 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:42:08,481 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:08,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:42:08,482 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:42:08,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:08,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1801140167, now seen corresponding path program 4 times [2022-11-25 16:42:08,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:08,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191385890] [2022-11-25 16:42:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:08,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:09,041 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 16:42:09,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:09,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191385890] [2022-11-25 16:42:09,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191385890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:09,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:09,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505766394] [2022-11-25 16:42:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:09,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:09,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:09,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:09,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:09,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:09,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 379 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:09,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:09,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:09,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:09,761 INFO L130 PetriNetUnfolder]: 36/125 cut-off events. [2022-11-25 16:42:09,761 INFO L131 PetriNetUnfolder]: For 771/771 co-relation queries the response was YES. [2022-11-25 16:42:09,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 125 events. 36/125 cut-off events. For 771/771 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 491 event pairs, 6 based on Foata normal form. 5/129 useless extension candidates. Maximal degree in co-relation 660. Up to 68 conditions per place. [2022-11-25 16:42:09,763 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 30 selfloop transitions, 11 changer transitions 14/58 dead transitions. [2022-11-25 16:42:09,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 58 transitions, 635 flow [2022-11-25 16:42:09,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:42:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:42:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 769 transitions. [2022-11-25 16:42:09,767 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41366325981710594 [2022-11-25 16:42:09,768 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 769 transitions. [2022-11-25 16:42:09,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 769 transitions. [2022-11-25 16:42:09,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:09,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 769 transitions. [2022-11-25 16:42:09,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states 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 16:42:09,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:42:09,779 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 16:42:09,780 INFO L175 Difference]: Start difference. First operand has 67 places, 42 transitions, 379 flow. Second operand 11 states and 769 transitions. [2022-11-25 16:42:09,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 58 transitions, 635 flow [2022-11-25 16:42:09,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 58 transitions, 535 flow, removed 29 selfloop flow, removed 14 redundant places. [2022-11-25 16:42:09,785 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 343 flow [2022-11-25 16:42:09,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=343, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2022-11-25 16:42:09,787 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 37 predicate places. [2022-11-25 16:42:09,787 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 343 flow [2022-11-25 16:42:09,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:09,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:42:09,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:09,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 16:42:09,789 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-25 16:42:09,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:09,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1722203627, now seen corresponding path program 5 times [2022-11-25 16:42:09,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:09,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026372062] [2022-11-25 16:42:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:09,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:10,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:10,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026372062] [2022-11-25 16:42:10,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026372062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:10,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:10,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:42:10,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406168079] [2022-11-25 16:42:10,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:10,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:42:10,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:10,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:42:10,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:42:10,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 169 [2022-11-25 16:42:10,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 343 flow. Second operand has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:10,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:42:10,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 169 [2022-11-25 16:42:10,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:42:11,487 INFO L130 PetriNetUnfolder]: 20/87 cut-off events. [2022-11-25 16:42:11,487 INFO L131 PetriNetUnfolder]: For 374/376 co-relation queries the response was YES. [2022-11-25 16:42:11,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 87 events. 20/87 cut-off events. For 374/376 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 298 event pairs, 0 based on Foata normal form. 11/98 useless extension candidates. Maximal degree in co-relation 436. Up to 27 conditions per place. [2022-11-25 16:42:11,488 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2022-11-25 16:42:11,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 593 flow [2022-11-25 16:42:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:42:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 16:42:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2022-11-25 16:42:11,490 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41893491124260357 [2022-11-25 16:42:11,491 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 708 transitions. [2022-11-25 16:42:11,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 708 transitions. [2022-11-25 16:42:11,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:42:11,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 708 transitions. [2022-11-25 16:42:11,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.8) internal successors, (708), 10 states have internal predecessors, (708), 0 states have call successors, (0), 0 states 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 16:42:11,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:11,498 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states 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 16:42:11,498 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 343 flow. Second operand 10 states and 708 transitions. [2022-11-25 16:42:11,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 593 flow [2022-11-25 16:42:11,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 62 transitions, 565 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-25 16:42:11,501 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2022-11-25 16:42:11,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2022-11-25 16:42:11,502 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, 36 predicate places. [2022-11-25 16:42:11,503 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2022-11-25 16:42:11,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.1) internal successors, (681), 10 states have internal predecessors, (681), 0 states have call successors, (0), 0 states 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 16:42:11,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-25 16:42:11,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-25 16:42:11,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-25 16:42:11,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-25 16:42:11,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 16:42:11,508 INFO L445 BasicCegarLoop]: Path program histogram: [6, 5, 1, 1] [2022-11-25 16:42:11,514 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:42:11,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:42:11,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:42:11 BasicIcfg [2022-11-25 16:42:11,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:42:11,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:42:11,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:42:11,520 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:42:11,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:41:45" (3/4) ... [2022-11-25 16:42:11,523 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:42:11,530 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 16:42:11,537 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 16:42:11,538 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 16:42:11,538 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 16:42:11,583 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:42:11,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:42:11,584 INFO L158 Benchmark]: Toolchain (without parser) took 27837.62ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 94.0MB in the beginning and 125.8MB in the end (delta: -31.8MB). Peak memory consumption was 170.1MB. Max. memory is 16.1GB. [2022-11-25 16:42:11,585 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 112.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:42:11,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 786.82ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 66.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 16:42:11,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.37ms. Allocated memory is still 142.6MB. Free memory was 66.0MB in the beginning and 63.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:42:11,586 INFO L158 Benchmark]: Boogie Preprocessor took 68.94ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 61.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:42:11,586 INFO L158 Benchmark]: RCFGBuilder took 796.80ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 61.8MB in the beginning and 163.4MB in the end (delta: -101.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-11-25 16:42:11,587 INFO L158 Benchmark]: TraceAbstraction took 26060.29ms. Allocated memory was 197.1MB in the beginning and 343.9MB in the end (delta: 146.8MB). Free memory was 163.4MB in the beginning and 128.9MB in the end (delta: 34.5MB). Peak memory consumption was 182.4MB. Max. memory is 16.1GB. [2022-11-25 16:42:11,587 INFO L158 Benchmark]: Witness Printer took 64.31ms. Allocated memory is still 343.9MB. Free memory was 128.9MB in the beginning and 125.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:42:11,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 112.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 786.82ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 66.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.37ms. Allocated memory is still 142.6MB. Free memory was 66.0MB in the beginning and 63.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.94ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 61.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 796.80ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 61.8MB in the beginning and 163.4MB in the end (delta: -101.6MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 26060.29ms. Allocated memory was 197.1MB in the beginning and 343.9MB in the end (delta: 146.8MB). Free memory was 163.4MB in the beginning and 128.9MB in the end (delta: 34.5MB). Peak memory consumption was 182.4MB. Max. memory is 16.1GB. * Witness Printer took 64.31ms. Allocated memory is still 343.9MB. Free memory was 128.9MB in the beginning and 125.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 92 PlacesBefore, 24 PlacesAfterwards, 89 TransitionsBefore, 20 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 8 FixpointIterations, 53 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 3034 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1109, independent: 833, independent conditional: 0, independent unconditional: 833, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 410, independent: 362, independent conditional: 0, independent unconditional: 362, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 410, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 235, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1109, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 410, unknown conditional: 0, unknown unconditional: 410] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 25.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2315 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1833 mSDsluCounter, 177 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 591 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5318 IncrementalHoareTripleChecker+Invalid, 5909 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 591 mSolverCounterUnsat, 41 mSDtfsCounter, 5318 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1585occurred in iteration=7, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 4017 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 16:42:11,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83fe5ff4-75b9-4138-b5a1-3222629138bb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE