/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:52,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:52,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:52,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:52,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:52,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:52,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:52,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:52,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:52,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:52,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:52,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:52,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:52,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:52,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:52,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:52,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:52,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:52,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:52,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:52,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-16 23:06:52,310 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:52,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:52,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:52,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:52,312 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:52,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:52,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:52,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:52,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:52,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:52,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:52,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:52,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:52,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:52,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:52,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:52,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:52,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:52,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:52,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:52,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:52,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:52,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:52,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:52,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:52,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:52,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:52,315 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:52,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:52,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:52,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:52,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:52,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:52,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:52,566 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:52,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2021-10-16 23:06:52,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc49ef1df/1508908ecb3e4076bc79bfe59e64bcf9/FLAG3c0754b9e [2021-10-16 23:06:53,077 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:53,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2021-10-16 23:06:53,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc49ef1df/1508908ecb3e4076bc79bfe59e64bcf9/FLAG3c0754b9e [2021-10-16 23:06:53,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc49ef1df/1508908ecb3e4076bc79bfe59e64bcf9 [2021-10-16 23:06:53,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:53,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:53,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:53,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:53,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:53,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffaa4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53, skipping insertion in model container [2021-10-16 23:06:53,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:53,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:53,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:53,534 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:53,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:53,647 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:53,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53 WrapperNode [2021-10-16 23:06:53,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:53,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:53,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:53,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:53,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:53,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:53,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:53,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:53,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:53,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:53,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:53,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:53,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (1/1) ... [2021-10-16 23:06:53,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:53,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:53,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 23:06:53,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 23:06:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:06:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:53,814 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:06:54,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:54,009 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:06:54,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:54 BoogieIcfgContainer [2021-10-16 23:06:54,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:54,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:54,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:54,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:54,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:53" (1/3) ... [2021-10-16 23:06:54,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2a63d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:54, skipping insertion in model container [2021-10-16 23:06:54,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:53" (2/3) ... [2021-10-16 23:06:54,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2a63d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:54, skipping insertion in model container [2021-10-16 23:06:54,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:54" (3/3) ... [2021-10-16 23:06:54,017 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2021-10-16 23:06:54,021 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:54,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:54,022 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:54,043 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,043 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,043 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,043 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,043 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,044 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,044 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,044 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,044 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,044 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,046 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,055 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:54,059 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:06:54,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:54,114 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 23:06:54,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 23:06:54,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 70 transitions, 145 flow [2021-10-16 23:06:54,182 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-10-16 23:06:54,182 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:54,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 20. Up to 2 conditions per place. [2021-10-16 23:06:54,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 70 transitions, 145 flow [2021-10-16 23:06:54,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 69 transitions, 141 flow [2021-10-16 23:06:54,220 INFO L129 PetriNetUnfolder]: 1/50 cut-off events. [2021-10-16 23:06:54,220 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:54,220 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:54,221 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:54,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-10-16 23:06:54,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:54,231 INFO L82 PathProgramCache]: Analyzing trace with hash 481084514, now seen corresponding path program 1 times [2021-10-16 23:06:54,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:54,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118131333] [2021-10-16 23:06:54,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:54,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:54,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:54,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118131333] [2021-10-16 23:06:54,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118131333] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:54,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:54,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:06:54,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408960836] [2021-10-16 23:06:54,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:06:54,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:54,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:06:54,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:06:54,626 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 70 [2021-10-16 23:06:54,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:54,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:54,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 70 [2021-10-16 23:06:54,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:54,849 INFO L129 PetriNetUnfolder]: 185/635 cut-off events. [2021-10-16 23:06:54,849 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:54,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 635 events. 185/635 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3419 event pairs, 82 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 1011. Up to 329 conditions per place. [2021-10-16 23:06:54,856 INFO L132 encePairwiseOnDemand]: 55/70 looper letters, 33 selfloop transitions, 38 changer transitions 4/114 dead transitions. [2021-10-16 23:06:54,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 114 transitions, 381 flow [2021-10-16 23:06:54,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:06:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:06:54,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions. [2021-10-16 23:06:54,869 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7523809523809524 [2021-10-16 23:06:54,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 316 transitions. [2021-10-16 23:06:54,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 316 transitions. [2021-10-16 23:06:54,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:54,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 316 transitions. [2021-10-16 23:06:54,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.666666666666664) internal successors, (316), 6 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:54,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:54,885 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:54,887 INFO L186 Difference]: Start difference. First operand has 72 places, 69 transitions, 141 flow. Second operand 6 states and 316 transitions. [2021-10-16 23:06:54,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 114 transitions, 381 flow [2021-10-16 23:06:54,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 114 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:54,899 INFO L242 Difference]: Finished difference. Result has 81 places, 106 transitions, 394 flow [2021-10-16 23:06:54,901 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=394, PETRI_PLACES=81, PETRI_TRANSITIONS=106} [2021-10-16 23:06:54,901 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, 9 predicate places. [2021-10-16 23:06:54,901 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 106 transitions, 394 flow [2021-10-16 23:06:54,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:54,902 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:54,902 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:54,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:54,903 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] === [2021-10-16 23:06:54,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:54,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1411225619, now seen corresponding path program 1 times [2021-10-16 23:06:54,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:54,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820144084] [2021-10-16 23:06:54,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:54,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:55,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:55,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820144084] [2021-10-16 23:06:55,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820144084] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:55,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:55,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:06:55,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795403685] [2021-10-16 23:06:55,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:06:55,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:55,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:06:55,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:06:55,059 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 70 [2021-10-16 23:06:55,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 106 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:55,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 70 [2021-10-16 23:06:55,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:55,305 INFO L129 PetriNetUnfolder]: 255/798 cut-off events. [2021-10-16 23:06:55,306 INFO L130 PetriNetUnfolder]: For 221/227 co-relation queries the response was YES. [2021-10-16 23:06:55,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 798 events. 255/798 cut-off events. For 221/227 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4513 event pairs, 62 based on Foata normal form. 0/776 useless extension candidates. Maximal degree in co-relation 1815. Up to 437 conditions per place. [2021-10-16 23:06:55,314 INFO L132 encePairwiseOnDemand]: 55/70 looper letters, 63 selfloop transitions, 42 changer transitions 11/158 dead transitions. [2021-10-16 23:06:55,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 158 transitions, 826 flow [2021-10-16 23:06:55,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:06:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:06:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 326 transitions. [2021-10-16 23:06:55,319 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7761904761904762 [2021-10-16 23:06:55,319 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 326 transitions. [2021-10-16 23:06:55,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 326 transitions. [2021-10-16 23:06:55,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:55,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 326 transitions. [2021-10-16 23:06:55,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,324 INFO L186 Difference]: Start difference. First operand has 81 places, 106 transitions, 394 flow. Second operand 6 states and 326 transitions. [2021-10-16 23:06:55,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 158 transitions, 826 flow [2021-10-16 23:06:55,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 158 transitions, 826 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-16 23:06:55,337 INFO L242 Difference]: Finished difference. Result has 91 places, 143 transitions, 722 flow [2021-10-16 23:06:55,337 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=722, PETRI_PLACES=91, PETRI_TRANSITIONS=143} [2021-10-16 23:06:55,338 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, 19 predicate places. [2021-10-16 23:06:55,338 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 143 transitions, 722 flow [2021-10-16 23:06:55,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,338 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:55,338 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:55,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:55,339 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] === [2021-10-16 23:06:55,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:55,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1294489496, now seen corresponding path program 1 times [2021-10-16 23:06:55,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:55,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533247852] [2021-10-16 23:06:55,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:55,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:55,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:55,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533247852] [2021-10-16 23:06:55,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533247852] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:55,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:55,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-16 23:06:55,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339947168] [2021-10-16 23:06:55,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 23:06:55,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 23:06:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-16 23:06:55,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 70 [2021-10-16 23:06:55,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 143 transitions, 722 flow. Second operand has 9 states, 9 states have (on average 38.333333333333336) internal successors, (345), 9 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:55,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 70 [2021-10-16 23:06:55,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:56,383 INFO L129 PetriNetUnfolder]: 567/1751 cut-off events. [2021-10-16 23:06:56,383 INFO L130 PetriNetUnfolder]: For 1189/1226 co-relation queries the response was YES. [2021-10-16 23:06:56,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5051 conditions, 1751 events. 567/1751 cut-off events. For 1189/1226 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 12685 event pairs, 165 based on Foata normal form. 30/1764 useless extension candidates. Maximal degree in co-relation 3502. Up to 556 conditions per place. [2021-10-16 23:06:56,396 INFO L132 encePairwiseOnDemand]: 53/70 looper letters, 182 selfloop transitions, 59 changer transitions 15/292 dead transitions. [2021-10-16 23:06:56,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 292 transitions, 2118 flow [2021-10-16 23:06:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 23:06:56,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-16 23:06:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 452 transitions. [2021-10-16 23:06:56,398 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7174603174603175 [2021-10-16 23:06:56,398 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 452 transitions. [2021-10-16 23:06:56,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 452 transitions. [2021-10-16 23:06:56,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:56,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 452 transitions. [2021-10-16 23:06:56,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 9 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:56,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:56,401 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:56,402 INFO L186 Difference]: Start difference. First operand has 91 places, 143 transitions, 722 flow. Second operand 9 states and 452 transitions. [2021-10-16 23:06:56,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 292 transitions, 2118 flow [2021-10-16 23:06:56,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 292 transitions, 2076 flow, removed 21 selfloop flow, removed 0 redundant places. [2021-10-16 23:06:56,426 INFO L242 Difference]: Finished difference. Result has 106 places, 202 transitions, 1433 flow [2021-10-16 23:06:56,426 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1433, PETRI_PLACES=106, PETRI_TRANSITIONS=202} [2021-10-16 23:06:56,426 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, 34 predicate places. [2021-10-16 23:06:56,427 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 202 transitions, 1433 flow [2021-10-16 23:06:56,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.333333333333336) internal successors, (345), 9 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:56,428 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:56,428 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:56,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:56,428 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] === [2021-10-16 23:06:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:56,429 INFO L82 PathProgramCache]: Analyzing trace with hash -55789661, now seen corresponding path program 1 times [2021-10-16 23:06:56,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:56,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845283812] [2021-10-16 23:06:56,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:56,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:56,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:56,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845283812] [2021-10-16 23:06:56,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845283812] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:56,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:56,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 23:06:56,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915076588] [2021-10-16 23:06:56,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 23:06:56,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:56,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 23:06:56,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-16 23:06:56,659 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 70 [2021-10-16 23:06:56,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 202 transitions, 1433 flow. Second operand has 8 states, 8 states have (on average 39.5) internal successors, (316), 8 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:56,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:56,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 70 [2021-10-16 23:06:56,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:57,149 INFO L129 PetriNetUnfolder]: 539/1674 cut-off events. [2021-10-16 23:06:57,149 INFO L130 PetriNetUnfolder]: For 2263/2313 co-relation queries the response was YES. [2021-10-16 23:06:57,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5544 conditions, 1674 events. 539/1674 cut-off events. For 2263/2313 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11869 event pairs, 163 based on Foata normal form. 32/1690 useless extension candidates. Maximal degree in co-relation 4622. Up to 544 conditions per place. [2021-10-16 23:06:57,162 INFO L132 encePairwiseOnDemand]: 54/70 looper letters, 226 selfloop transitions, 39 changer transitions 36/338 dead transitions. [2021-10-16 23:06:57,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 338 transitions, 2953 flow [2021-10-16 23:06:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 23:06:57,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-16 23:06:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 416 transitions. [2021-10-16 23:06:57,164 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2021-10-16 23:06:57,164 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 416 transitions. [2021-10-16 23:06:57,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 416 transitions. [2021-10-16 23:06:57,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:57,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 416 transitions. [2021-10-16 23:06:57,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 52.0) internal successors, (416), 8 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:57,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:57,167 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:57,167 INFO L186 Difference]: Start difference. First operand has 106 places, 202 transitions, 1433 flow. Second operand 8 states and 416 transitions. [2021-10-16 23:06:57,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 338 transitions, 2953 flow [2021-10-16 23:06:57,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 338 transitions, 2952 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:06:57,198 INFO L242 Difference]: Finished difference. Result has 118 places, 213 transitions, 1686 flow [2021-10-16 23:06:57,199 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=1432, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1686, PETRI_PLACES=118, PETRI_TRANSITIONS=213} [2021-10-16 23:06:57,199 INFO L334 CegarLoopForPetriNet]: 72 programPoint places, 46 predicate places. [2021-10-16 23:06:57,199 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 213 transitions, 1686 flow [2021-10-16 23:06:57,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 39.5) internal successors, (316), 8 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:57,200 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:57,200 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:57,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:06:57,203 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] === [2021-10-16 23:06:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:57,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1727054914, now seen corresponding path program 1 times [2021-10-16 23:06:57,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:57,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706626704] [2021-10-16 23:06:57,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:57,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:57,232 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:06:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:57,270 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:06:57,270 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:06:57,271 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:57,273 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:57,274 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:57,274 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:57,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 23:06:57,282 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:57,282 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:57,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:57 BasicIcfg [2021-10-16 23:06:57,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:57,316 INFO L168 Benchmark]: Toolchain (without parser) took 4196.72 ms. Allocated memory was 184.5 MB in the beginning and 225.4 MB in the end (delta: 40.9 MB). Free memory was 131.7 MB in the beginning and 142.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:57,317 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 184.5 MB. Free memory was 150.3 MB in the beginning and 150.3 MB in the end (delta: 72.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:57,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.69 ms. Allocated memory was 184.5 MB in the beginning and 225.4 MB in the end (delta: 40.9 MB). Free memory was 131.4 MB in the beginning and 185.4 MB in the end (delta: -54.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:57,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.56 ms. Allocated memory is still 225.4 MB. Free memory was 185.4 MB in the beginning and 183.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:57,318 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 ms. Allocated memory is still 225.4 MB. Free memory was 183.3 MB in the beginning and 181.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:57,318 INFO L168 Benchmark]: RCFGBuilder took 266.46 ms. Allocated memory is still 225.4 MB. Free memory was 181.8 MB in the beginning and 169.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:57,319 INFO L168 Benchmark]: TraceAbstraction took 3302.80 ms. Allocated memory is still 225.4 MB. Free memory was 168.7 MB in the beginning and 142.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:57,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 184.5 MB. Free memory was 150.3 MB in the beginning and 150.3 MB in the end (delta: 72.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 528.69 ms. Allocated memory was 184.5 MB in the beginning and 225.4 MB in the end (delta: 40.9 MB). Free memory was 131.4 MB in the beginning and 185.4 MB in the end (delta: -54.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 61.56 ms. Allocated memory is still 225.4 MB. Free memory was 185.4 MB in the beginning and 183.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.20 ms. Allocated memory is still 225.4 MB. Free memory was 183.3 MB in the beginning and 181.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 266.46 ms. Allocated memory is still 225.4 MB. Free memory was 181.8 MB in the beginning and 169.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3302.80 ms. Allocated memory is still 225.4 MB. Free memory was 168.7 MB in the beginning and 142.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 916]: the program contains a data race the program contains a data race We found a FailurePath: [L911-L914] 0 struct { int x; int y; } data; VAL [data={6:0}] [L920] 0 int *i,j = __VERIFIER_nondet_int(); VAL [data={6:0}] [L920] 0 int *i,j = __VERIFIER_nondet_int(); VAL [data={6:0}] [L921] 0 pthread_t id; VAL [data={6:0}] [L922] COND TRUE 0 \read(j) VAL [data={6:0}] [L922] 0 i = &data.x VAL [data={6:0}] [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={6:0}] [L925] 0 \read(*i) VAL [arg={0:0}, arg={0:0}, data={6:0}] [L916] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data={6:0}, data.x=0] [L916] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={6:0}, data.x=0, data.x++=10data.x++=9data.x++=0] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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, 94 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 27.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3170.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1829.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 78.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 67 SDtfs, 156 SDslu, 10 SDs, 0 SdLazy, 843 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 681.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 337.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1686occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.4ms SsaConstructionTime, 148.3ms SatisfiabilityAnalysisTime, 810.5ms InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 1472 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:06:57,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...