/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-FA-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/10-synch_02-thread_nonunique.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 15:19:38,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 15:19:38,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 15:19:38,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 15:19:38,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 15:19:38,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 15:19:38,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 15:19:38,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 15:19:38,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 15:19:38,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 15:19:38,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 15:19:38,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 15:19:38,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 15:19:38,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 15:19:38,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 15:19:38,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 15:19:38,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 15:19:38,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 15:19:38,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 15:19:38,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 15:19:38,526 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-FA-NoLbe.epf [2022-03-15 15:19:38,545 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 15:19:38,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 15:19:38,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 15:19:38,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 15:19:38,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 15:19:38,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 15:19:38,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 15:19:38,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 15:19:38,548 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 15:19:38,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 15:19:38,549 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 15:19:38,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 15:19:38,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 15:19:38,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 15:19:38,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 15:19:38,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 15:19:38,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 15:19:38,550 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 15:19:38,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 15:19:38,550 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 15:19:38,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 15:19:38,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 15:19:38,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 15:19:38,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 15:19:38,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 15:19:38,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:19:38,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 15:19:38,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 15:19:38,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 15:19:38,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 15:19:38,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 15:19:38,552 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 15:19:38,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 15:19:38,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-03-15 15:19:38,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 15:19:38,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 15:19:38,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 15:19:38,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 15:19:38,807 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 15:19:38,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-03-15 15:19:38,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547b409e2/f6b3d77fb5254783a319a37464e423dd/FLAG90b3a31c8 [2022-03-15 15:19:39,321 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 15:19:39,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-03-15 15:19:39,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547b409e2/f6b3d77fb5254783a319a37464e423dd/FLAG90b3a31c8 [2022-03-15 15:19:39,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547b409e2/f6b3d77fb5254783a319a37464e423dd [2022-03-15 15:19:39,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 15:19:39,839 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 15:19:39,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 15:19:39,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 15:19:39,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 15:19:39,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:19:39" (1/1) ... [2022-03-15 15:19:39,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7524a495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:39, skipping insertion in model container [2022-03-15 15:19:39,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:19:39" (1/1) ... [2022-03-15 15:19:39,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 15:19:39,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 15:19:40,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 15:19:40,238 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 15:19:40,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 15:19:40,315 INFO L208 MainTranslator]: Completed translation [2022-03-15 15:19:40,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40 WrapperNode [2022-03-15 15:19:40,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 15:19:40,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 15:19:40,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 15:19:40,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 15:19:40,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,365 INFO L137 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-03-15 15:19:40,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 15:19:40,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 15:19:40,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 15:19:40,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 15:19:40,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 15:19:40,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 15:19:40,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 15:19:40,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 15:19:40,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (1/1) ... [2022-03-15 15:19:40,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:19:40,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:19:40,422 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) [2022-03-15 15:19:40,429 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 [2022-03-15 15:19:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 15:19:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 15:19:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 15:19:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 15:19:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 15:19:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 15:19:40,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 15:19:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 15:19:40,448 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 15:19:40,536 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 15:19:40,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 15:19:40,676 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 15:19:40,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 15:19:40,680 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-15 15:19:40,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:19:40 BoogieIcfgContainer [2022-03-15 15:19:40,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 15:19:40,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 15:19:40,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 15:19:40,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 15:19:40,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 03:19:39" (1/3) ... [2022-03-15 15:19:40,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66036c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:19:40, skipping insertion in model container [2022-03-15 15:19:40,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:19:40" (2/3) ... [2022-03-15 15:19:40,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66036c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:19:40, skipping insertion in model container [2022-03-15 15:19:40,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:19:40" (3/3) ... [2022-03-15 15:19:40,687 INFO L111 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2022-03-15 15:19:40,690 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 15:19:40,690 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 15:19:40,690 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-15 15:19:40,690 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 15:19:40,707 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,708 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,709 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,713 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:40,715 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 15:19:40,742 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:19:40,746 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 15:19:40,747 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 15:19:40,755 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 56 transitions, 120 flow [2022-03-15 15:19:40,793 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:40,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 15:19:40,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:40,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:40,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-03-15 15:19:40,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:40,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1508681915, now seen corresponding path program 1 times [2022-03-15 15:19:40,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:40,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033717655] [2022-03-15 15:19:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:40,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:40,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033717655] [2022-03-15 15:19:40,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033717655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:19:41,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:19:41,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 15:19:41,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226153088] [2022-03-15 15:19:41,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:19:41,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 15:19:41,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:41,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 15:19:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 15:19:41,036 INFO L87 Difference]: Start difference. First operand has 311 states, 302 states have (on average 1.903973509933775) internal successors, (575), 310 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:41,074 INFO L93 Difference]: Finished difference Result 311 states and 554 transitions. [2022-03-15 15:19:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 15:19:41,076 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-15 15:19:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:41,092 INFO L225 Difference]: With dead ends: 311 [2022-03-15 15:19:41,092 INFO L226 Difference]: Without dead ends: 282 [2022-03-15 15:19:41,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 15:19:41,100 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:41,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:41,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-15 15:19:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-03-15 15:19:41,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 275 states have (on average 1.8072727272727274) internal successors, (497), 281 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 497 transitions. [2022-03-15 15:19:41,162 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 497 transitions. Word has length 21 [2022-03-15 15:19:41,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:41,162 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 497 transitions. [2022-03-15 15:19:41,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,162 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 497 transitions. [2022-03-15 15:19:41,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 15:19:41,163 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:41,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:41,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 15:19:41,163 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-03-15 15:19:41,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:41,164 INFO L85 PathProgramCache]: Analyzing trace with hash -298772548, now seen corresponding path program 1 times [2022-03-15 15:19:41,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:41,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372013145] [2022-03-15 15:19:41,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:41,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:41,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:41,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372013145] [2022-03-15 15:19:41,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372013145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:19:41,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:19:41,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:19:41,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224104490] [2022-03-15 15:19:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:19:41,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:19:41,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:41,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:19:41,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:41,214 INFO L87 Difference]: Start difference. First operand 282 states and 497 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:41,271 INFO L93 Difference]: Finished difference Result 239 states and 418 transitions. [2022-03-15 15:19:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:19:41,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-15 15:19:41,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:41,273 INFO L225 Difference]: With dead ends: 239 [2022-03-15 15:19:41,273 INFO L226 Difference]: Without dead ends: 239 [2022-03-15 15:19:41,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:41,278 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:41,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 56 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:41,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-03-15 15:19:41,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-03-15 15:19:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 233 states have (on average 1.793991416309013) internal successors, (418), 238 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 418 transitions. [2022-03-15 15:19:41,284 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 418 transitions. Word has length 21 [2022-03-15 15:19:41,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:41,285 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 418 transitions. [2022-03-15 15:19:41,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 418 transitions. [2022-03-15 15:19:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 15:19:41,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:41,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:41,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 15:19:41,287 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-03-15 15:19:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:41,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1391277118, now seen corresponding path program 1 times [2022-03-15 15:19:41,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:41,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75318066] [2022-03-15 15:19:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:41,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:41,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:41,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75318066] [2022-03-15 15:19:41,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75318066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:19:41,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:19:41,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 15:19:41,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375925584] [2022-03-15 15:19:41,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:19:41,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:19:41,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:41,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:19:41,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:41,340 INFO L87 Difference]: Start difference. First operand 239 states and 418 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:41,353 INFO L93 Difference]: Finished difference Result 218 states and 377 transitions. [2022-03-15 15:19:41,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:19:41,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-03-15 15:19:41,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:41,355 INFO L225 Difference]: With dead ends: 218 [2022-03-15 15:19:41,355 INFO L226 Difference]: Without dead ends: 218 [2022-03-15 15:19:41,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:41,361 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 21 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:41,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:41,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-15 15:19:41,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-03-15 15:19:41,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 215 states have (on average 1.7534883720930232) internal successors, (377), 217 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 377 transitions. [2022-03-15 15:19:41,365 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 377 transitions. Word has length 22 [2022-03-15 15:19:41,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:41,366 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 377 transitions. [2022-03-15 15:19:41,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,366 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 377 transitions. [2022-03-15 15:19:41,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:19:41,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:41,366 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:41,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 15:19:41,367 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-03-15 15:19:41,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:41,367 INFO L85 PathProgramCache]: Analyzing trace with hash 499314067, now seen corresponding path program 1 times [2022-03-15 15:19:41,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:41,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459577301] [2022-03-15 15:19:41,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:41,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:19:41,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 15:19:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:19:41,427 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 15:19:41,427 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 15:19:41,428 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-03-15 15:19:41,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2022-03-15 15:19:41,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-03-15 15:19:41,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-03-15 15:19:41,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 15:19:41,431 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-03-15 15:19:41,432 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-15 15:19:41,432 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-03-15 15:19:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,452 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,453 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,453 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,453 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,453 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,453 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,454 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,455 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,456 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,456 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,456 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,457 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,459 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,460 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,461 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,463 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,463 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,464 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,464 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,464 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,465 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,465 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:19:41,468 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 15:19:41,471 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:19:41,473 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 15:19:41,474 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 15:19:41,476 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 67 transitions, 152 flow [2022-03-15 15:19:41,593 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 15:19:41,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:41,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:41,602 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-15 15:19:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash -179665602, now seen corresponding path program 1 times [2022-03-15 15:19:41,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:41,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064176440] [2022-03-15 15:19:41,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:41,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:41,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:41,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064176440] [2022-03-15 15:19:41,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064176440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:19:41,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:19:41,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 15:19:41,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001773818] [2022-03-15 15:19:41,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:19:41,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 15:19:41,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:41,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 15:19:41,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 15:19:41,632 INFO L87 Difference]: Start difference. First operand has 3341 states, 3316 states have (on average 2.708986731001206) internal successors, (8983), 3340 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:41,675 INFO L93 Difference]: Finished difference Result 3341 states and 8752 transitions. [2022-03-15 15:19:41,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 15:19:41,675 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-15 15:19:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:41,694 INFO L225 Difference]: With dead ends: 3341 [2022-03-15 15:19:41,694 INFO L226 Difference]: Without dead ends: 3172 [2022-03-15 15:19:41,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 15:19:41,696 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:41,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-03-15 15:19:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3172. [2022-03-15 15:19:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3151 states have (on average 2.6350364963503647) internal successors, (8303), 3171 states have internal predecessors, (8303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 8303 transitions. [2022-03-15 15:19:41,778 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 8303 transitions. Word has length 21 [2022-03-15 15:19:41,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:41,779 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 8303 transitions. [2022-03-15 15:19:41,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 8303 transitions. [2022-03-15 15:19:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 15:19:41,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:41,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:41,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 15:19:41,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-15 15:19:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1987120065, now seen corresponding path program 1 times [2022-03-15 15:19:41,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:41,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154673682] [2022-03-15 15:19:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:41,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:41,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:41,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154673682] [2022-03-15 15:19:41,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154673682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:19:41,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:19:41,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:19:41,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650496798] [2022-03-15 15:19:41,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:19:41,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:19:41,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:41,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:19:41,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:41,826 INFO L87 Difference]: Start difference. First operand 3172 states and 8303 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:41,890 INFO L93 Difference]: Finished difference Result 2676 states and 6842 transitions. [2022-03-15 15:19:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:19:41,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-15 15:19:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:41,901 INFO L225 Difference]: With dead ends: 2676 [2022-03-15 15:19:41,901 INFO L226 Difference]: Without dead ends: 2676 [2022-03-15 15:19:41,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:41,902 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:41,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 99 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:41,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-03-15 15:19:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2589. [2022-03-15 15:19:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2589 states, 2571 states have (on average 2.601711396343835) internal successors, (6689), 2588 states have internal predecessors, (6689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 6689 transitions. [2022-03-15 15:19:41,977 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 6689 transitions. Word has length 21 [2022-03-15 15:19:41,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:41,977 INFO L470 AbstractCegarLoop]: Abstraction has 2589 states and 6689 transitions. [2022-03-15 15:19:41,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 6689 transitions. [2022-03-15 15:19:41,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 15:19:41,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:41,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:41,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 15:19:41,978 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-15 15:19:41,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:41,979 INFO L85 PathProgramCache]: Analyzing trace with hash 849774069, now seen corresponding path program 1 times [2022-03-15 15:19:41,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:41,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512688685] [2022-03-15 15:19:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:41,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:42,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:42,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512688685] [2022-03-15 15:19:42,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512688685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:19:42,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:19:42,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 15:19:42,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535433015] [2022-03-15 15:19:42,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:19:42,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:19:42,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:19:42,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:42,011 INFO L87 Difference]: Start difference. First operand 2589 states and 6689 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:42,049 INFO L93 Difference]: Finished difference Result 2778 states and 7177 transitions. [2022-03-15 15:19:42,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:19:42,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-03-15 15:19:42,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:42,062 INFO L225 Difference]: With dead ends: 2778 [2022-03-15 15:19:42,062 INFO L226 Difference]: Without dead ends: 2743 [2022-03-15 15:19:42,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:42,063 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 42 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:42,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 151 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-03-15 15:19:42,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2599. [2022-03-15 15:19:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2581 states have (on average 2.606354126307633) internal successors, (6727), 2598 states have internal predecessors, (6727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 6727 transitions. [2022-03-15 15:19:42,157 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 6727 transitions. Word has length 22 [2022-03-15 15:19:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:42,158 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 6727 transitions. [2022-03-15 15:19:42,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 6727 transitions. [2022-03-15 15:19:42,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 15:19:42,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:42,161 INFO L514 BasicCegarLoop]: 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] [2022-03-15 15:19:42,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 15:19:42,164 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-15 15:19:42,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:42,165 INFO L85 PathProgramCache]: Analyzing trace with hash 63309174, now seen corresponding path program 1 times [2022-03-15 15:19:42,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:42,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697843881] [2022-03-15 15:19:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:42,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:42,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:42,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697843881] [2022-03-15 15:19:42,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697843881] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 15:19:42,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301273733] [2022-03-15 15:19:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:42,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:19:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:19:42,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 15:19:42,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 15:19:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:42,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 15:19:42,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 15:19:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:42,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 15:19:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:19:42,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301273733] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 15:19:42,489 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 15:19:42,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-15 15:19:42,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154267415] [2022-03-15 15:19:42,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 15:19:42,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 15:19:42,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:42,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 15:19:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:19:42,490 INFO L87 Difference]: Start difference. First operand 2599 states and 6727 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:42,548 INFO L93 Difference]: Finished difference Result 1229 states and 3220 transitions. [2022-03-15 15:19:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:19:42,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-03-15 15:19:42,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:42,553 INFO L225 Difference]: With dead ends: 1229 [2022-03-15 15:19:42,553 INFO L226 Difference]: Without dead ends: 1229 [2022-03-15 15:19:42,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-15 15:19:42,553 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 201 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:42,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 256 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:42,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2022-03-15 15:19:42,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2022-03-15 15:19:42,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1225 states have (on average 2.6285714285714286) internal successors, (3220), 1228 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3220 transitions. [2022-03-15 15:19:42,573 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3220 transitions. Word has length 31 [2022-03-15 15:19:42,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:42,573 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3220 transitions. [2022-03-15 15:19:42,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3220 transitions. [2022-03-15 15:19:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 15:19:42,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:42,573 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:19:42,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 15:19:42,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 15:19:42,780 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-15 15:19:42,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:42,781 INFO L85 PathProgramCache]: Analyzing trace with hash 25788934, now seen corresponding path program 1 times [2022-03-15 15:19:42,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:42,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613960623] [2022-03-15 15:19:42,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:42,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:19:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-15 15:19:42,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:19:42,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613960623] [2022-03-15 15:19:42,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613960623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:19:42,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:19:42,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 15:19:42,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61964431] [2022-03-15 15:19:42,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:19:42,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:19:42,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:19:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:19:42,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:42,798 INFO L87 Difference]: Start difference. First operand 1229 states and 3220 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:19:42,811 INFO L93 Difference]: Finished difference Result 1262 states and 3294 transitions. [2022-03-15 15:19:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:19:42,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-03-15 15:19:42,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:19:42,816 INFO L225 Difference]: With dead ends: 1262 [2022-03-15 15:19:42,816 INFO L226 Difference]: Without dead ends: 1262 [2022-03-15 15:19:42,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:19:42,817 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:19:42,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 87 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:19:42,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-03-15 15:19:42,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1207. [2022-03-15 15:19:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1204 states have (on average 2.612126245847176) internal successors, (3145), 1206 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 3145 transitions. [2022-03-15 15:19:42,837 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 3145 transitions. Word has length 32 [2022-03-15 15:19:42,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:19:42,838 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 3145 transitions. [2022-03-15 15:19:42,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:19:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 3145 transitions. [2022-03-15 15:19:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-03-15 15:19:42,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:19:42,840 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2022-03-15 15:19:42,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 15:19:42,840 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-03-15 15:19:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:19:42,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1212973435, now seen corresponding path program 1 times [2022-03-15 15:19:42,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:19:42,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253172107] [2022-03-15 15:19:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:19:42,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:19:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:19:42,858 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 15:19:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:19:42,876 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 15:19:42,877 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 15:19:42,877 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-03-15 15:19:42,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-03-15 15:19:42,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 15:19:42,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2022-03-15 15:19:42,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-03-15 15:19:42,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 15:19:42,877 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-03-15 15:19:42,880 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-03-15 15:19:42,880 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 15:19:42,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:19:42 BasicIcfg [2022-03-15 15:19:42,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 15:19:42,921 INFO L158 Benchmark]: Toolchain (without parser) took 3082.55ms. Allocated memory was 195.0MB in the beginning and 237.0MB in the end (delta: 41.9MB). Free memory was 142.5MB in the beginning and 100.9MB in the end (delta: 41.7MB). Peak memory consumption was 85.0MB. Max. memory is 8.0GB. [2022-03-15 15:19:42,922 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 160.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:19:42,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.02ms. Allocated memory is still 195.0MB. Free memory was 142.4MB in the beginning and 154.7MB in the end (delta: -12.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-15 15:19:42,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.68ms. Allocated memory is still 195.0MB. Free memory was 154.7MB in the beginning and 152.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 15:19:42,922 INFO L158 Benchmark]: Boogie Preprocessor took 28.54ms. Allocated memory is still 195.0MB. Free memory was 152.7MB in the beginning and 151.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:19:42,923 INFO L158 Benchmark]: RCFGBuilder took 286.43ms. Allocated memory is still 195.0MB. Free memory was 151.1MB in the beginning and 139.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-15 15:19:42,923 INFO L158 Benchmark]: TraceAbstraction took 2238.34ms. Allocated memory was 195.0MB in the beginning and 237.0MB in the end (delta: 41.9MB). Free memory was 139.1MB in the beginning and 100.9MB in the end (delta: 38.2MB). Peak memory consumption was 81.2MB. Max. memory is 8.0GB. [2022-03-15 15:19:42,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 160.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 474.02ms. Allocated memory is still 195.0MB. Free memory was 142.4MB in the beginning and 154.7MB in the end (delta: -12.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.68ms. Allocated memory is still 195.0MB. Free memory was 154.7MB in the beginning and 152.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.54ms. Allocated memory is still 195.0MB. Free memory was 152.7MB in the beginning and 151.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 286.43ms. Allocated memory is still 195.0MB. Free memory was 151.1MB in the beginning and 139.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2238.34ms. Allocated memory was 195.0MB in the beginning and 237.0MB in the end (delta: 41.9MB). Free memory was 139.1MB in the beginning and 100.9MB in the end (delta: 38.2MB). Peak memory consumption was 81.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L923] 0 pthread_t id[10]; VAL [id={2:0}, myglobal=0] [L924] 0 int i; VAL [id={2:0}, myglobal=0] [L925] 0 i=0 VAL [i=0, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 VAL [i=0, id={2:0}, myglobal=0] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=0, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-1] [L919] 1 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=43] [L925] 0 i++ VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43] [L925] COND TRUE 0 i<10 VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, myglobal=42=43, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=0] [L919] 2 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=44] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. - UnprovableResult [Line: 928]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 926]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 64 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 148 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 74 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 654 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 341 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 326 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3341occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 286 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 2 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 5/8 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 could not prove your program: unable to determine feasibility of some traces [2022-03-15 15:19:42,973 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...