/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:05:44,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:05:44,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:05:44,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 23:05:44,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 23:05:44,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 23:05:44,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 23:05:44,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 23:05:44,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 23:05:44,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 23:05:44,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 23:05:44,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 23:05:44,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:05:44,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:05:44,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:05:44,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:05:44,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:05:44,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:05:44,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:05:44,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:05:44,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:05:44,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:05:44,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:05:44,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:05:44,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:05:44,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:05:44,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:05:44,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:05:44,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-16 23:05:44,824 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:05:44,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:05:44,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:05:44,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:05:44,825 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:05:44,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:05:44,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:05:44,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:05:44,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:05:44,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:05:44,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:05:44,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:05:44,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:05:44,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:05:44,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:05:44,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:05:44,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:05:44,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:05:44,829 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:05:44,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:05:44,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:05:44,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:05:45,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:05:45,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:05:45,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:05:45,015 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:05:45,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2021-10-16 23:05:45,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa3fa12d/4325108e00f94839b568ea9734ac8207/FLAG39259441a [2021-10-16 23:05:45,515 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:05:45,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2021-10-16 23:05:45,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa3fa12d/4325108e00f94839b568ea9734ac8207/FLAG39259441a [2021-10-16 23:05:45,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa3fa12d/4325108e00f94839b568ea9734ac8207 [2021-10-16 23:05:45,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:05:45,882 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:05:45,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:05:45,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:05:45,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:05:45,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:05:45" (1/1) ... [2021-10-16 23:05:45,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfe37e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:45, skipping insertion in model container [2021-10-16 23:05:45,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:05:45" (1/1) ... [2021-10-16 23:05:45,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:05:45,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:05:46,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:05:46,360 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:05:46,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:05:46,477 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:05:46,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46 WrapperNode [2021-10-16 23:05:46,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:05:46,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:05:46,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:05:46,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:05:46,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:05:46,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:05:46,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:05:46,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:05:46,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:05:46,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:05:46,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:05:46,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:05:46,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (1/1) ... [2021-10-16 23:05:46,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:05:46,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:05:46,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 23:05:46,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 23:05:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:05:46,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:05:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:05:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:05:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:05:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 23:05:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:05:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:05:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:05:46,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:05:46,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:05:46,689 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:05:47,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:05:47,052 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:05:47,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:05:47 BoogieIcfgContainer [2021-10-16 23:05:47,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:05:47,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:05:47,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:05:47,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:05:47,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:05:45" (1/3) ... [2021-10-16 23:05:47,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fb7e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:05:47, skipping insertion in model container [2021-10-16 23:05:47,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:46" (2/3) ... [2021-10-16 23:05:47,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fb7e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:05:47, skipping insertion in model container [2021-10-16 23:05:47,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:05:47" (3/3) ... [2021-10-16 23:05:47,064 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2021-10-16 23:05:47,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:05:47,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 23:05:47,068 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:05:47,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,089 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,094 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,097 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,097 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,097 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,097 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,097 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,097 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,098 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,098 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,098 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:47,101 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:05:47,132 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:05:47,136 INFO L339 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=false, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 23:05:47,136 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 23:05:47,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 109 transitions, 223 flow [2021-10-16 23:05:47,174 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-10-16 23:05:47,174 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:47,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 108 events. 0/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-16 23:05:47,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 109 transitions, 223 flow [2021-10-16 23:05:47,179 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 102 transitions, 207 flow [2021-10-16 23:05:47,185 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-10-16 23:05:47,185 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:47,185 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:47,186 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:47,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:47,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:47,193 INFO L82 PathProgramCache]: Analyzing trace with hash -920298377, now seen corresponding path program 1 times [2021-10-16 23:05:47,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:47,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498610717] [2021-10-16 23:05:47,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:47,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:05:47,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:47,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498610717] [2021-10-16 23:05:47,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498610717] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:47,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:47,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:05:47,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374460081] [2021-10-16 23:05:47,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:05:47,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:47,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:05:47,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:05:47,424 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 109 [2021-10-16 23:05:47,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:47,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 109 [2021-10-16 23:05:47,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:47,472 INFO L129 PetriNetUnfolder]: 1/122 cut-off events. [2021-10-16 23:05:47,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:47,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 122 events. 1/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 1 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 83. Up to 8 conditions per place. [2021-10-16 23:05:47,475 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 5 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2021-10-16 23:05:47,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 101 transitions, 219 flow [2021-10-16 23:05:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:05:47,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:05:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2021-10-16 23:05:47,494 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9510703363914373 [2021-10-16 23:05:47,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2021-10-16 23:05:47,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2021-10-16 23:05:47,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:47,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2021-10-16 23:05:47,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,514 INFO L186 Difference]: Start difference. First operand has 106 places, 102 transitions, 207 flow. Second operand 3 states and 311 transitions. [2021-10-16 23:05:47,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 101 transitions, 219 flow [2021-10-16 23:05:47,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:05:47,519 INFO L242 Difference]: Finished difference. Result has 106 places, 101 transitions, 208 flow [2021-10-16 23:05:47,520 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2021-10-16 23:05:47,521 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2021-10-16 23:05:47,521 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 208 flow [2021-10-16 23:05:47,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,521 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:47,521 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:47,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:05:47,522 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:47,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1535217939, now seen corresponding path program 1 times [2021-10-16 23:05:47,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:47,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164817654] [2021-10-16 23:05:47,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:47,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:05:47,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:47,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164817654] [2021-10-16 23:05:47,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164817654] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:47,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:47,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:05:47,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007462405] [2021-10-16 23:05:47,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:05:47,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:05:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:05:47,636 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 109 [2021-10-16 23:05:47,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:47,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 109 [2021-10-16 23:05:47,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:47,661 INFO L129 PetriNetUnfolder]: 1/109 cut-off events. [2021-10-16 23:05:47,661 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:47,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 109 events. 1/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 1 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 88. Up to 8 conditions per place. [2021-10-16 23:05:47,662 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 5 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2021-10-16 23:05:47,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 220 flow [2021-10-16 23:05:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:05:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:05:47,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2021-10-16 23:05:47,664 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9510703363914373 [2021-10-16 23:05:47,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2021-10-16 23:05:47,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2021-10-16 23:05:47,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:47,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2021-10-16 23:05:47,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,666 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,666 INFO L186 Difference]: Start difference. First operand has 106 places, 101 transitions, 208 flow. Second operand 3 states and 311 transitions. [2021-10-16 23:05:47,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 220 flow [2021-10-16 23:05:47,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:05:47,669 INFO L242 Difference]: Finished difference. Result has 105 places, 100 transitions, 206 flow [2021-10-16 23:05:47,669 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2021-10-16 23:05:47,669 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, -1 predicate places. [2021-10-16 23:05:47,670 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 206 flow [2021-10-16 23:05:47,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,670 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:47,670 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:47,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:05:47,670 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:47,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:47,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1063787481, now seen corresponding path program 1 times [2021-10-16 23:05:47,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:47,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390816672] [2021-10-16 23:05:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:47,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:05:47,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:47,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390816672] [2021-10-16 23:05:47,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390816672] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:47,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:47,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:05:47,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047275593] [2021-10-16 23:05:47,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:05:47,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:47,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:05:47,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:05:47,851 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2021-10-16 23:05:47,852 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:47,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:47,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2021-10-16 23:05:47,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:48,193 INFO L129 PetriNetUnfolder]: 185/758 cut-off events. [2021-10-16 23:05:48,193 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:48,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 758 events. 185/758 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4163 event pairs, 78 based on Foata normal form. 0/730 useless extension candidates. Maximal degree in co-relation 1121. Up to 290 conditions per place. [2021-10-16 23:05:48,201 INFO L132 encePairwiseOnDemand]: 94/109 looper letters, 41 selfloop transitions, 38 changer transitions 0/153 dead transitions. [2021-10-16 23:05:48,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 153 transitions, 470 flow [2021-10-16 23:05:48,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:05:48,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:05:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 572 transitions. [2021-10-16 23:05:48,204 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8746177370030581 [2021-10-16 23:05:48,204 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 572 transitions. [2021-10-16 23:05:48,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 572 transitions. [2021-10-16 23:05:48,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:48,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 572 transitions. [2021-10-16 23:05:48,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,209 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,209 INFO L186 Difference]: Start difference. First operand has 105 places, 100 transitions, 206 flow. Second operand 6 states and 572 transitions. [2021-10-16 23:05:48,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 153 transitions, 470 flow [2021-10-16 23:05:48,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 153 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:05:48,217 INFO L242 Difference]: Finished difference. Result has 112 places, 138 transitions, 436 flow [2021-10-16 23:05:48,219 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=436, PETRI_PLACES=112, PETRI_TRANSITIONS=138} [2021-10-16 23:05:48,219 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 6 predicate places. [2021-10-16 23:05:48,220 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 138 transitions, 436 flow [2021-10-16 23:05:48,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,223 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:48,224 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:48,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:05:48,224 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:48,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:48,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1303654271, now seen corresponding path program 1 times [2021-10-16 23:05:48,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:48,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302893885] [2021-10-16 23:05:48,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:48,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:05:48,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:48,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302893885] [2021-10-16 23:05:48,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302893885] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:48,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:48,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 23:05:48,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942966394] [2021-10-16 23:05:48,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:05:48,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:48,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:05:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:05:48,290 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 109 [2021-10-16 23:05:48,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 138 transitions, 436 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:48,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 109 [2021-10-16 23:05:48,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:48,323 INFO L129 PetriNetUnfolder]: 39/260 cut-off events. [2021-10-16 23:05:48,323 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-16 23:05:48,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 260 events. 39/260 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 798 event pairs, 4 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 374. Up to 56 conditions per place. [2021-10-16 23:05:48,324 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 6 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2021-10-16 23:05:48,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 121 transitions, 361 flow [2021-10-16 23:05:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:05:48,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:05:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2021-10-16 23:05:48,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9418960244648318 [2021-10-16 23:05:48,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2021-10-16 23:05:48,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2021-10-16 23:05:48,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:48,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2021-10-16 23:05:48,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,327 INFO L186 Difference]: Start difference. First operand has 112 places, 138 transitions, 436 flow. Second operand 3 states and 308 transitions. [2021-10-16 23:05:48,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 121 transitions, 361 flow [2021-10-16 23:05:48,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 121 transitions, 351 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-10-16 23:05:48,332 INFO L242 Difference]: Finished difference. Result has 114 places, 121 transitions, 339 flow [2021-10-16 23:05:48,332 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=114, PETRI_TRANSITIONS=121} [2021-10-16 23:05:48,332 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 8 predicate places. [2021-10-16 23:05:48,333 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 121 transitions, 339 flow [2021-10-16 23:05:48,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,333 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:48,333 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:48,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:05:48,333 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:48,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:48,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1411162862, now seen corresponding path program 1 times [2021-10-16 23:05:48,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:48,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122789098] [2021-10-16 23:05:48,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:48,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:48,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:05:48,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:48,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122789098] [2021-10-16 23:05:48,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122789098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:48,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:48,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:05:48,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098484986] [2021-10-16 23:05:48,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:05:48,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:48,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:05:48,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:05:48,454 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2021-10-16 23:05:48,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 121 transitions, 339 flow. Second operand has 6 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) [2021-10-16 23:05:48,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:48,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2021-10-16 23:05:48,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:48,569 INFO L129 PetriNetUnfolder]: 93/490 cut-off events. [2021-10-16 23:05:48,569 INFO L130 PetriNetUnfolder]: For 59/62 co-relation queries the response was YES. [2021-10-16 23:05:48,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 490 events. 93/490 cut-off events. For 59/62 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2190 event pairs, 25 based on Foata normal form. 7/495 useless extension candidates. Maximal degree in co-relation 899. Up to 174 conditions per place. [2021-10-16 23:05:48,571 INFO L132 encePairwiseOnDemand]: 100/109 looper letters, 59 selfloop transitions, 14 changer transitions 1/150 dead transitions. [2021-10-16 23:05:48,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 150 transitions, 577 flow [2021-10-16 23:05:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:05:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:05:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2021-10-16 23:05:48,572 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8363914373088684 [2021-10-16 23:05:48,572 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 547 transitions. [2021-10-16 23:05:48,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 547 transitions. [2021-10-16 23:05:48,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:48,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 547 transitions. [2021-10-16 23:05:48,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,575 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,575 INFO L186 Difference]: Start difference. First operand has 114 places, 121 transitions, 339 flow. Second operand 6 states and 547 transitions. [2021-10-16 23:05:48,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 150 transitions, 577 flow [2021-10-16 23:05:48,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 150 transitions, 574 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:05:48,578 INFO L242 Difference]: Finished difference. Result has 122 places, 135 transitions, 457 flow [2021-10-16 23:05:48,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=122, PETRI_TRANSITIONS=135} [2021-10-16 23:05:48,579 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 16 predicate places. [2021-10-16 23:05:48,579 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 135 transitions, 457 flow [2021-10-16 23:05:48,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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) [2021-10-16 23:05:48,579 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:48,579 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:48,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 23:05:48,580 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:48,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:48,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1432983127, now seen corresponding path program 1 times [2021-10-16 23:05:48,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:48,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619018816] [2021-10-16 23:05:48,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:48,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:05:48,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:48,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619018816] [2021-10-16 23:05:48,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619018816] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:48,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:48,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-16 23:05:48,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568506022] [2021-10-16 23:05:48,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 23:05:48,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:48,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 23:05:48,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-16 23:05:48,714 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 109 [2021-10-16 23:05:48,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 135 transitions, 457 flow. Second operand has 11 states, 11 states have (on average 69.63636363636364) internal successors, (766), 11 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:48,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 109 [2021-10-16 23:05:48,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:48,982 INFO L129 PetriNetUnfolder]: 124/596 cut-off events. [2021-10-16 23:05:48,982 INFO L130 PetriNetUnfolder]: For 193/197 co-relation queries the response was YES. [2021-10-16 23:05:48,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1371 conditions, 596 events. 124/596 cut-off events. For 193/197 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2945 event pairs, 35 based on Foata normal form. 7/597 useless extension candidates. Maximal degree in co-relation 1299. Up to 168 conditions per place. [2021-10-16 23:05:48,985 INFO L132 encePairwiseOnDemand]: 96/109 looper letters, 71 selfloop transitions, 16 changer transitions 30/176 dead transitions. [2021-10-16 23:05:48,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 176 transitions, 881 flow [2021-10-16 23:05:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 23:05:48,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-16 23:05:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1219 transitions. [2021-10-16 23:05:48,988 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6578521316783594 [2021-10-16 23:05:48,988 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1219 transitions. [2021-10-16 23:05:48,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1219 transitions. [2021-10-16 23:05:48,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:48,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1219 transitions. [2021-10-16 23:05:48,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 71.70588235294117) internal successors, (1219), 17 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,993 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,993 INFO L186 Difference]: Start difference. First operand has 122 places, 135 transitions, 457 flow. Second operand 17 states and 1219 transitions. [2021-10-16 23:05:48,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 176 transitions, 881 flow [2021-10-16 23:05:48,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 176 transitions, 863 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-10-16 23:05:48,997 INFO L242 Difference]: Finished difference. Result has 136 places, 130 transitions, 451 flow [2021-10-16 23:05:48,998 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=451, PETRI_PLACES=136, PETRI_TRANSITIONS=130} [2021-10-16 23:05:48,998 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2021-10-16 23:05:48,998 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 130 transitions, 451 flow [2021-10-16 23:05:48,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.63636363636364) internal successors, (766), 11 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:48,998 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:48,998 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:48,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 23:05:48,999 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:48,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:48,999 INFO L82 PathProgramCache]: Analyzing trace with hash 919027714, now seen corresponding path program 1 times [2021-10-16 23:05:48,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:48,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329355851] [2021-10-16 23:05:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:48,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:05:49,057 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:05:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:05:49,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:05:49,089 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:05:49,089 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:49,090 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:49,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:49,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:05:49,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:49,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:49,091 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:49,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 23:05:49,096 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:05:49,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:05:49,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:05:49 BasicIcfg [2021-10-16 23:05:49,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:05:49,138 INFO L168 Benchmark]: Toolchain (without parser) took 3255.75 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 117.8 MB in the beginning and 162.9 MB in the end (delta: -45.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:05:49,138 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 174.1 MB. Free memory was 136.3 MB in the beginning and 136.3 MB in the end (delta: 65.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:05:49,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.99 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 117.6 MB in the beginning and 157.6 MB in the end (delta: -39.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:49,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.06 ms. Allocated memory is still 209.7 MB. Free memory was 157.6 MB in the beginning and 155.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:49,139 INFO L168 Benchmark]: Boogie Preprocessor took 43.60 ms. Allocated memory is still 209.7 MB. Free memory was 155.1 MB in the beginning and 153.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:49,139 INFO L168 Benchmark]: RCFGBuilder took 465.45 ms. Allocated memory is still 209.7 MB. Free memory was 153.4 MB in the beginning and 139.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:49,139 INFO L168 Benchmark]: TraceAbstraction took 2082.53 ms. Allocated memory is still 209.7 MB. Free memory was 139.1 MB in the beginning and 162.9 MB in the end (delta: -23.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:05:49,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 174.1 MB. Free memory was 136.3 MB in the beginning and 136.3 MB in the end (delta: 65.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 581.99 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 117.6 MB in the beginning and 157.6 MB in the end (delta: -39.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 65.06 ms. Allocated memory is still 209.7 MB. Free memory was 157.6 MB in the beginning and 155.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.60 ms. Allocated memory is still 209.7 MB. Free memory was 155.1 MB in the beginning and 153.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 465.45 ms. Allocated memory is still 209.7 MB. Free memory was 153.4 MB in the beginning and 139.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2082.53 ms. Allocated memory is still 209.7 MB. Free memory was 139.1 MB in the beginning and 162.9 MB in the end (delta: -23.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1222]: the program contains a data race the program contains a data race We found a FailurePath: [L1216] 0 int *x; VAL [x={0:0}] [L1217] 0 int *y; VAL [x={0:0}, y={0:0}] [L1218] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={9:0}, x={0:0}, y={0:0}] [L1227] 0 pthread_t id; VAL [m={9:0}, x={0:0}, y={0:0}] [L1228] 0 x = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={0:0}] [L1229] 0 y = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={-3:0}] [L1230] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1232] 0 \read(*x) VAL [arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1221] 1 *x = 3 VAL [*x=110, *x = 3=108, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1234] 0 \read(*y) VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1221]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1964.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 969.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 43.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 78 SDtfs, 77 SDslu, 48 SDs, 0 SdLazy, 577 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 315.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 169.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=457occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.3ms SsaConstructionTime, 190.5ms SatisfiabilityAnalysisTime, 487.1ms InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 1072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:05:49,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...