/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-44898dd [2022-02-09 02:12:01,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 02:12:01,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 02:12:01,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 02:12:01,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 02:12:01,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 02:12:01,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 02:12:01,387 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 [2022-02-09 02:12:01,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 02:12:01,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 02:12:01,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 02:12:01,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 02:12:01,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 02:12:01,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 02:12:01,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 02:12:01,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 02:12:01,422 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 02:12:01,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 02:12:01,423 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 02:12:01,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 02:12:01,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 02:12:01,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 02:12:01,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 02:12:01,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 02:12:01,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 02:12:01,424 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 02:12:01,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 02:12:01,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 02:12:01,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 02:12:01,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 02:12:01,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 02:12:01,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 02:12:01,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 02:12:01,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 02:12:01,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 02:12:01,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 02:12:01,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 02:12:01,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 02:12:01,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 02:12:01,426 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 02:12:01,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 02:12:01,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-02-09 02:12:01,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 02:12:01,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 02:12:01,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 02:12:01,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 02:12:01,663 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 02:12:01,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-02-09 02:12:01,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a3d5bfd9/c6d01ba89e274892ae7b4185d0146a51/FLAGd0ba473b8 [2022-02-09 02:12:02,126 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 02:12:02,127 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/10-synch_02-thread_nonunique.i [2022-02-09 02:12:02,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a3d5bfd9/c6d01ba89e274892ae7b4185d0146a51/FLAGd0ba473b8 [2022-02-09 02:12:02,459 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a3d5bfd9/c6d01ba89e274892ae7b4185d0146a51 [2022-02-09 02:12:02,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 02:12:02,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 02:12:02,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 02:12:02,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 02:12:02,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 02:12:02,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 02:12:02" (1/1) ... [2022-02-09 02:12:02,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad6ab38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:02, skipping insertion in model container [2022-02-09 02:12:02,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 02:12:02" (1/1) ... [2022-02-09 02:12:02,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 02:12:02,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 02:12:02,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 02:12:02,902 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 02:12:02,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 02:12:03,011 INFO L208 MainTranslator]: Completed translation [2022-02-09 02:12:03,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03 WrapperNode [2022-02-09 02:12:03,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 02:12:03,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 02:12:03,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 02:12:03,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 02:12:03,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,069 INFO L137 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-02-09 02:12:03,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 02:12:03,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 02:12:03,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 02:12:03,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 02:12:03,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 02:12:03,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 02:12:03,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 02:12:03,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 02:12:03,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (1/1) ... [2022-02-09 02:12:03,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 02:12:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 02:12:03,140 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) [2022-02-09 02:12:03,147 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 [2022-02-09 02:12:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 02:12:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 02:12:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 02:12:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 02:12:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-09 02:12:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-09 02:12:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 02:12:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 02:12:03,173 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 02:12:03,289 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 02:12:03,290 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 02:12:03,447 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 02:12:03,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 02:12:03,452 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-09 02:12:03,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:12:03 BoogieIcfgContainer [2022-02-09 02:12:03,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 02:12:03,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 02:12:03,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 02:12:03,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 02:12:03,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 02:12:02" (1/3) ... [2022-02-09 02:12:03,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b79444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:12:03, skipping insertion in model container [2022-02-09 02:12:03,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:12:03" (2/3) ... [2022-02-09 02:12:03,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b79444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:12:03, skipping insertion in model container [2022-02-09 02:12:03,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:12:03" (3/3) ... [2022-02-09 02:12:03,460 INFO L111 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2022-02-09 02:12:03,464 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 02:12:03,464 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 02:12:03,464 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-09 02:12:03,464 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 02:12:03,486 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,487 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,487 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,487 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,488 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,489 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,490 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,493 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,493 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,493 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,493 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,494 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:03,497 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-09 02:12:03,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 02:12:03,542 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 [2022-02-09 02:12:03,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 02:12:03,554 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 56 transitions, 120 flow [2022-02-09 02:12:03,602 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) [2022-02-09 02:12:03,605 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) [2022-02-09 02:12:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-09 02:12:03,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:03,611 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] [2022-02-09 02:12:03,612 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] === [2022-02-09 02:12:03,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1508681915, now seen corresponding path program 1 times [2022-02-09 02:12:03,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:03,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802296972] [2022-02-09 02:12:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:03,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:03,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:03,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:03,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802296972] [2022-02-09 02:12:03,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802296972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:12:03,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:12:03,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 02:12:03,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391487270] [2022-02-09 02:12:03,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:12:03,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 02:12:03,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:03,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 02:12:03,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 02:12:03,802 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) [2022-02-09 02:12:03,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:03,851 INFO L93 Difference]: Finished difference Result 311 states and 554 transitions. [2022-02-09 02:12:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 02:12:03,854 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 [2022-02-09 02:12:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:03,865 INFO L225 Difference]: With dead ends: 311 [2022-02-09 02:12:03,866 INFO L226 Difference]: Without dead ends: 282 [2022-02-09 02:12:03,867 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 [2022-02-09 02:12:03,870 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 [2022-02-09 02:12:03,870 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] [2022-02-09 02:12:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-02-09 02:12:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-02-09 02:12:03,914 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) [2022-02-09 02:12:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 497 transitions. [2022-02-09 02:12:03,917 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 497 transitions. Word has length 21 [2022-02-09 02:12:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:03,917 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 497 transitions. [2022-02-09 02:12:03,917 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) [2022-02-09 02:12:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 497 transitions. [2022-02-09 02:12:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-09 02:12:03,918 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:03,918 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] [2022-02-09 02:12:03,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 02:12:03,919 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] === [2022-02-09 02:12:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:03,920 INFO L85 PathProgramCache]: Analyzing trace with hash -298772548, now seen corresponding path program 1 times [2022-02-09 02:12:03,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:03,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550080406] [2022-02-09 02:12:03,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:03,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:03,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:03,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550080406] [2022-02-09 02:12:03,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550080406] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:12:03,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:12:03,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 02:12:03,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967724711] [2022-02-09 02:12:03,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:12:03,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 02:12:03,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:03,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 02:12:03,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:12:03,989 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) [2022-02-09 02:12:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:04,038 INFO L93 Difference]: Finished difference Result 239 states and 418 transitions. [2022-02-09 02:12:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 02:12:04,040 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 [2022-02-09 02:12:04,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:04,042 INFO L225 Difference]: With dead ends: 239 [2022-02-09 02:12:04,042 INFO L226 Difference]: Without dead ends: 239 [2022-02-09 02:12:04,042 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 [2022-02-09 02:12:04,043 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 [2022-02-09 02:12:04,044 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] [2022-02-09 02:12:04,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-02-09 02:12:04,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-02-09 02:12:04,061 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) [2022-02-09 02:12:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 418 transitions. [2022-02-09 02:12:04,062 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 418 transitions. Word has length 21 [2022-02-09 02:12:04,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:04,062 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 418 transitions. [2022-02-09 02:12:04,062 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) [2022-02-09 02:12:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 418 transitions. [2022-02-09 02:12:04,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-02-09 02:12:04,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:04,063 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] [2022-02-09 02:12:04,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 02:12:04,063 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] === [2022-02-09 02:12:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1391277118, now seen corresponding path program 1 times [2022-02-09 02:12:04,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:04,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430146577] [2022-02-09 02:12:04,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:04,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:04,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:04,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:04,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430146577] [2022-02-09 02:12:04,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430146577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:12:04,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:12:04,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 02:12:04,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107494850] [2022-02-09 02:12:04,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:12:04,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 02:12:04,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:04,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 02:12:04,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:12:04,135 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) [2022-02-09 02:12:04,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:04,147 INFO L93 Difference]: Finished difference Result 218 states and 377 transitions. [2022-02-09 02:12:04,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 02:12:04,148 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 [2022-02-09 02:12:04,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:04,149 INFO L225 Difference]: With dead ends: 218 [2022-02-09 02:12:04,149 INFO L226 Difference]: Without dead ends: 218 [2022-02-09 02:12:04,150 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 [2022-02-09 02:12:04,151 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 [2022-02-09 02:12:04,151 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] [2022-02-09 02:12:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-02-09 02:12:04,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-02-09 02:12:04,162 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) [2022-02-09 02:12:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 377 transitions. [2022-02-09 02:12:04,163 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 377 transitions. Word has length 22 [2022-02-09 02:12:04,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:04,163 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 377 transitions. [2022-02-09 02:12:04,163 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) [2022-02-09 02:12:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 377 transitions. [2022-02-09 02:12:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-02-09 02:12:04,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:04,165 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] [2022-02-09 02:12:04,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 02:12:04,165 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2022-02-09 02:12:04,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:04,166 INFO L85 PathProgramCache]: Analyzing trace with hash 499314067, now seen corresponding path program 1 times [2022-02-09 02:12:04,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:04,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072695032] [2022-02-09 02:12:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:04,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:12:04,211 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 02:12:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:12:04,248 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 02:12:04,249 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 02:12:04,250 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-02-09 02:12:04,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2022-02-09 02:12:04,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-02-09 02:12:04,251 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-02-09 02:12:04,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 02:12:04,254 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-09 02:12:04,256 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-09 02:12:04,256 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-09 02:12:04,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,268 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,268 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,269 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,269 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,269 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,270 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,271 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,272 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,273 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,274 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,275 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,275 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,275 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,276 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:12:04,280 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 02:12:04,282 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 02:12:04,283 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 [2022-02-09 02:12:04,283 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-09 02:12:04,284 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 67 transitions, 152 flow [2022-02-09 02:12:04,386 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) [2022-02-09 02:12:04,393 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) [2022-02-09 02:12:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-09 02:12:04,394 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:04,394 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] [2022-02-09 02:12:04,395 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)] === [2022-02-09 02:12:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:04,396 INFO L85 PathProgramCache]: Analyzing trace with hash -179665602, now seen corresponding path program 1 times [2022-02-09 02:12:04,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:04,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348436414] [2022-02-09 02:12:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:04,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:04,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:04,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348436414] [2022-02-09 02:12:04,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348436414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:12:04,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:12:04,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 02:12:04,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86751120] [2022-02-09 02:12:04,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:12:04,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 02:12:04,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:04,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 02:12:04,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 02:12:04,452 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) [2022-02-09 02:12:04,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:04,498 INFO L93 Difference]: Finished difference Result 3341 states and 8752 transitions. [2022-02-09 02:12:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 02:12:04,499 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 [2022-02-09 02:12:04,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:04,516 INFO L225 Difference]: With dead ends: 3341 [2022-02-09 02:12:04,517 INFO L226 Difference]: Without dead ends: 3172 [2022-02-09 02:12:04,518 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 [2022-02-09 02:12:04,527 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 [2022-02-09 02:12:04,529 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] [2022-02-09 02:12:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-02-09 02:12:04,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3172. [2022-02-09 02:12:04,638 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) [2022-02-09 02:12:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 8303 transitions. [2022-02-09 02:12:04,653 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 8303 transitions. Word has length 21 [2022-02-09 02:12:04,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:04,654 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 8303 transitions. [2022-02-09 02:12:04,654 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) [2022-02-09 02:12:04,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 8303 transitions. [2022-02-09 02:12:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-09 02:12:04,662 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:04,662 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] [2022-02-09 02:12:04,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 02:12:04,663 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)] === [2022-02-09 02:12:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1987120065, now seen corresponding path program 1 times [2022-02-09 02:12:04,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:04,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455592048] [2022-02-09 02:12:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:04,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:04,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:04,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455592048] [2022-02-09 02:12:04,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455592048] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:12:04,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:12:04,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 02:12:04,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749551396] [2022-02-09 02:12:04,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:12:04,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 02:12:04,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:04,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 02:12:04,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:12:04,733 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) [2022-02-09 02:12:04,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:04,810 INFO L93 Difference]: Finished difference Result 2676 states and 6842 transitions. [2022-02-09 02:12:04,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 02:12:04,811 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 [2022-02-09 02:12:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:04,824 INFO L225 Difference]: With dead ends: 2676 [2022-02-09 02:12:04,824 INFO L226 Difference]: Without dead ends: 2676 [2022-02-09 02:12:04,825 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 [2022-02-09 02:12:04,855 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:12:04,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 99 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:12:04,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-02-09 02:12:04,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2589. [2022-02-09 02:12:04,920 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) [2022-02-09 02:12:04,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 6689 transitions. [2022-02-09 02:12:04,932 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 6689 transitions. Word has length 21 [2022-02-09 02:12:04,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:04,933 INFO L470 AbstractCegarLoop]: Abstraction has 2589 states and 6689 transitions. [2022-02-09 02:12:04,933 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) [2022-02-09 02:12:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 6689 transitions. [2022-02-09 02:12:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-02-09 02:12:04,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:04,934 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] [2022-02-09 02:12:04,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 02:12:04,934 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)] === [2022-02-09 02:12:04,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash 849774069, now seen corresponding path program 1 times [2022-02-09 02:12:04,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:04,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453858656] [2022-02-09 02:12:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:04,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:04,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:04,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453858656] [2022-02-09 02:12:04,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453858656] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:12:04,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:12:04,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 02:12:05,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51252166] [2022-02-09 02:12:05,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:12:05,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 02:12:05,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:05,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 02:12:05,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:12:05,013 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) [2022-02-09 02:12:05,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:05,057 INFO L93 Difference]: Finished difference Result 2778 states and 7177 transitions. [2022-02-09 02:12:05,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 02:12:05,058 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 [2022-02-09 02:12:05,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:05,073 INFO L225 Difference]: With dead ends: 2778 [2022-02-09 02:12:05,074 INFO L226 Difference]: Without dead ends: 2743 [2022-02-09 02:12:05,074 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 [2022-02-09 02:12:05,077 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 [2022-02-09 02:12:05,077 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] [2022-02-09 02:12:05,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-02-09 02:12:05,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2599. [2022-02-09 02:12:05,140 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) [2022-02-09 02:12:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 6727 transitions. [2022-02-09 02:12:05,150 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 6727 transitions. Word has length 22 [2022-02-09 02:12:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:05,150 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 6727 transitions. [2022-02-09 02:12:05,150 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) [2022-02-09 02:12:05,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 6727 transitions. [2022-02-09 02:12:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-02-09 02:12:05,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:05,155 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] [2022-02-09 02:12:05,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 02:12:05,156 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)] === [2022-02-09 02:12:05,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash 63309174, now seen corresponding path program 1 times [2022-02-09 02:12:05,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:05,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645755796] [2022-02-09 02:12:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:05,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:05,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:05,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645755796] [2022-02-09 02:12:05,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645755796] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 02:12:05,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103625541] [2022-02-09 02:12:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:05,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 02:12:05,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 02:12:05,244 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) [2022-02-09 02:12:05,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-09 02:12:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:05,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 02:12:05,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 02:12:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:05,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 02:12:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:12:05,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103625541] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 02:12:05,575 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 02:12:05,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 02:12:05,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378168568] [2022-02-09 02:12:05,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 02:12:05,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 02:12:05,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:05,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 02:12:05,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 02:12:05,577 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) [2022-02-09 02:12:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:05,668 INFO L93 Difference]: Finished difference Result 1229 states and 3220 transitions. [2022-02-09 02:12:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 02:12:05,668 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 [2022-02-09 02:12:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:05,674 INFO L225 Difference]: With dead ends: 1229 [2022-02-09 02:12:05,674 INFO L226 Difference]: Without dead ends: 1229 [2022-02-09 02:12:05,674 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 [2022-02-09 02:12:05,675 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 [2022-02-09 02:12:05,675 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] [2022-02-09 02:12:05,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2022-02-09 02:12:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2022-02-09 02:12:05,741 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) [2022-02-09 02:12:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 3220 transitions. [2022-02-09 02:12:05,744 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 3220 transitions. Word has length 31 [2022-02-09 02:12:05,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:05,746 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 3220 transitions. [2022-02-09 02:12:05,746 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) [2022-02-09 02:12:05,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 3220 transitions. [2022-02-09 02:12:05,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-02-09 02:12:05,747 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:05,747 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] [2022-02-09 02:12:05,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-09 02:12:05,963 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 [2022-02-09 02:12:05,964 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)] === [2022-02-09 02:12:05,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:05,964 INFO L85 PathProgramCache]: Analyzing trace with hash 25788934, now seen corresponding path program 1 times [2022-02-09 02:12:05,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:05,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301005393] [2022-02-09 02:12:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:05,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:12:05,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 02:12:05,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:12:05,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301005393] [2022-02-09 02:12:05,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301005393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:12:05,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:12:05,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 02:12:05,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369747830] [2022-02-09 02:12:05,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:12:05,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 02:12:05,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:12:05,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 02:12:05,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:12:05,992 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) [2022-02-09 02:12:06,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:12:06,011 INFO L93 Difference]: Finished difference Result 1262 states and 3294 transitions. [2022-02-09 02:12:06,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 02:12:06,011 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 [2022-02-09 02:12:06,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:12:06,017 INFO L225 Difference]: With dead ends: 1262 [2022-02-09 02:12:06,017 INFO L226 Difference]: Without dead ends: 1262 [2022-02-09 02:12:06,017 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 [2022-02-09 02:12:06,017 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 [2022-02-09 02:12:06,018 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] [2022-02-09 02:12:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-02-09 02:12:06,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1207. [2022-02-09 02:12:06,042 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) [2022-02-09 02:12:06,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 3145 transitions. [2022-02-09 02:12:06,046 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 3145 transitions. Word has length 32 [2022-02-09 02:12:06,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:12:06,050 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 3145 transitions. [2022-02-09 02:12:06,050 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) [2022-02-09 02:12:06,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 3145 transitions. [2022-02-09 02:12:06,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-09 02:12:06,055 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:12:06,055 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] [2022-02-09 02:12:06,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 02:12:06,055 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)] === [2022-02-09 02:12:06,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:12:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1212973435, now seen corresponding path program 1 times [2022-02-09 02:12:06,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:12:06,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182365577] [2022-02-09 02:12:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:12:06,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:12:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:12:06,069 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 02:12:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:12:06,080 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 02:12:06,080 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 02:12:06,080 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-02-09 02:12:06,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-02-09 02:12:06,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-02-09 02:12:06,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2022-02-09 02:12:06,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-02-09 02:12:06,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-09 02:12:06,081 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-02-09 02:12:06,084 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-02-09 02:12:06,084 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 02:12:06,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 02:12:06 BasicIcfg [2022-02-09 02:12:06,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 02:12:06,122 INFO L158 Benchmark]: Toolchain (without parser) took 3659.41ms. Allocated memory was 182.5MB in the beginning and 221.2MB in the end (delta: 38.8MB). Free memory was 133.4MB in the beginning and 136.6MB in the end (delta: -3.2MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. [2022-02-09 02:12:06,122 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 151.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 02:12:06,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.49ms. Allocated memory is still 182.5MB. Free memory was 133.2MB in the beginning and 147.2MB in the end (delta: -14.0MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-02-09 02:12:06,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.86ms. Allocated memory is still 182.5MB. Free memory was 147.2MB in the beginning and 144.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 02:12:06,123 INFO L158 Benchmark]: Boogie Preprocessor took 36.53ms. Allocated memory is still 182.5MB. Free memory was 144.7MB in the beginning and 143.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 02:12:06,123 INFO L158 Benchmark]: RCFGBuilder took 345.43ms. Allocated memory is still 182.5MB. Free memory was 143.4MB in the beginning and 132.2MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-09 02:12:06,124 INFO L158 Benchmark]: TraceAbstraction took 2666.87ms. Allocated memory was 182.5MB in the beginning and 221.2MB in the end (delta: 38.8MB). Free memory was 131.5MB in the beginning and 136.6MB in the end (delta: -5.1MB). Peak memory consumption was 34.0MB. Max. memory is 8.0GB. [2022-02-09 02:12:06,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 151.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 549.49ms. Allocated memory is still 182.5MB. Free memory was 133.2MB in the beginning and 147.2MB in the end (delta: -14.0MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.86ms. Allocated memory is still 182.5MB. Free memory was 147.2MB in the beginning and 144.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.53ms. Allocated memory is still 182.5MB. Free memory was 144.7MB in the beginning and 143.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 345.43ms. Allocated memory is still 182.5MB. Free memory was 143.4MB in the beginning and 132.2MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2666.87ms. Allocated memory was 182.5MB in the beginning and 221.2MB in the end (delta: 38.8MB). Free memory was 131.5MB in the beginning and 136.6MB in the end (delta: -5.1MB). Peak memory consumption was 34.0MB. 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: 0.1s, 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, 0.1s 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: 1.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, 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: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 286 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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 [2022-02-09 02:12:06,200 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...