/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/04-mutex_44-malloc_sound.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 22:46:18,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 22:46:18,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 22:46:18,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 22:46:18,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 22:46:18,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 22:46:18,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 22:46:18,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 22:46:18,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 22:46:18,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 22:46:18,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 22:46:18,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 22:46:18,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 22:46:18,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 22:46:18,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 22:46:18,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 22:46:18,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 22:46:18,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 22:46:18,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 22:46:18,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 22:46:18,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 22:46:18,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 22:46:18,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 22:46:18,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 22:46:18,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 22:46:18,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 22:46:18,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 22:46:18,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 22:46:18,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 22:46:18,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 22:46:18,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 22:46:18,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 22:46:18,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 22:46:18,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 22:46:18,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 22:46:18,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 22:46:18,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 22:46:18,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 22:46:18,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 22:46:18,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 22:46:18,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 22:46:18,136 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 [2021-10-16 22:46:18,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 22:46:18,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 22:46:18,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-16 22:46:18,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-16 22:46:18,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 22:46:18,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 22:46:18,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 22:46:18,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 22:46:18,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:46:18,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 22:46:18,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 22:46:18,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 22:46:18,166 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 22:46:18,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 22:46:18,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 22:46:18,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 22:46:18,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 22:46:18,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 22:46:18,369 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 22:46:18,370 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 22:46:18,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i [2021-10-16 22:46:18,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c739aae8b/2874fbbfbbb34e86bea6b2832a05da27/FLAG8306816c2 [2021-10-16 22:46:18,852 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 22:46:18,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_44-malloc_sound.i [2021-10-16 22:46:18,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c739aae8b/2874fbbfbbb34e86bea6b2832a05da27/FLAG8306816c2 [2021-10-16 22:46:19,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c739aae8b/2874fbbfbbb34e86bea6b2832a05da27 [2021-10-16 22:46:19,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 22:46:19,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 22:46:19,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 22:46:19,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 22:46:19,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 22:46:19,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac37de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19, skipping insertion in model container [2021-10-16 22:46:19,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 22:46:19,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 22:46:19,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:46:19,529 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 22:46:19,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 22:46:19,605 INFO L208 MainTranslator]: Completed translation [2021-10-16 22:46:19,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19 WrapperNode [2021-10-16 22:46:19,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 22:46:19,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 22:46:19,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 22:46:19,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 22:46:19,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 22:46:19,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 22:46:19,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 22:46:19,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 22:46:19,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 22:46:19,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 22:46:19,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 22:46:19,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 22:46:19,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (1/1) ... [2021-10-16 22:46:19,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 22:46:19,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:19,710 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 22:46:19,715 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 22:46:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-16 22:46:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-16 22:46:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 22:46:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 22:46:19,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 22:46:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 22:46:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 22:46:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 22:46:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 22:46:19,738 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 22:46:20,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 22:46:20,052 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-16 22:46:20,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:46:20 BoogieIcfgContainer [2021-10-16 22:46:20,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 22:46:20,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 22:46:20,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 22:46:20,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 22:46:20,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:46:19" (1/3) ... [2021-10-16 22:46:20,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b383f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:46:20, skipping insertion in model container [2021-10-16 22:46:20,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:19" (2/3) ... [2021-10-16 22:46:20,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b383f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:46:20, skipping insertion in model container [2021-10-16 22:46:20,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:46:20" (3/3) ... [2021-10-16 22:46:20,060 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_44-malloc_sound.i [2021-10-16 22:46:20,063 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 22:46:20,064 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 22:46:20,064 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 22:46:20,064 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 22:46:20,094 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,094 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,095 WARN L313 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,095 WARN L313 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,095 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,095 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#in~x.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,095 WARN L313 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,095 WARN L313 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,096 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,096 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,096 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,096 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,097 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,097 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,097 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,097 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,097 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,098 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,098 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,098 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,098 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,098 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,098 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,099 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,099 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,099 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,099 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,100 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,100 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,100 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,100 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,100 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,100 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,100 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,101 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,101 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,101 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,101 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,101 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,102 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,102 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,102 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,102 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,102 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,105 WARN L313 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,105 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,105 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,105 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,106 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,106 WARN L313 ript$VariableManager]: TermVariabe fThread1of1ForFork0_~x.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,106 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,106 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,106 WARN L313 ript$VariableManager]: TermVariabe |fThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 22:46:20,110 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 22:46:20,150 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 22:46:20,157 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, mConcurrency=FINITE_AUTOMATA, 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 22:46:20,157 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 22:46:20,169 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 88 transitions, 181 flow [2021-10-16 22:46:20,204 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 434 states, 429 states have (on average 1.8344988344988344) internal successors, (787), 433 states have internal predecessors, (787), 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 22:46:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 434 states, 429 states have (on average 1.8344988344988344) internal successors, (787), 433 states have internal predecessors, (787), 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 22:46:20,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-16 22:46:20,211 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:20,211 INFO L517 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] [2021-10-16 22:46:20,212 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:20,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1421901601, now seen corresponding path program 1 times [2021-10-16 22:46:20,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:20,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376580414] [2021-10-16 22:46:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:20,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:20,355 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 22:46:20,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:20,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376580414] [2021-10-16 22:46:20,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376580414] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:20,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:46:20,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 22:46:20,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429915565] [2021-10-16 22:46:20,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:46:20,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:46:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:46:20,373 INFO L87 Difference]: Start difference. First operand has 434 states, 429 states have (on average 1.8344988344988344) internal successors, (787), 433 states have internal predecessors, (787), 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 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 22:46:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:20,427 INFO L93 Difference]: Finished difference Result 443 states and 795 transitions. [2021-10-16 22:46:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:46:20,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2021-10-16 22:46:20,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:20,439 INFO L225 Difference]: With dead ends: 443 [2021-10-16 22:46:20,439 INFO L226 Difference]: Without dead ends: 443 [2021-10-16 22:46:20,440 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 22:46:20,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-10-16 22:46:20,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2021-10-16 22:46:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 436 states have (on average 1.8188073394495412) internal successors, (793), 440 states have internal predecessors, (793), 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 22:46:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 793 transitions. [2021-10-16 22:46:20,486 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 793 transitions. Word has length 23 [2021-10-16 22:46:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:20,486 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 793 transitions. [2021-10-16 22:46:20,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 22:46:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 793 transitions. [2021-10-16 22:46:20,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 22:46:20,487 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:20,487 INFO L517 BasicCegarLoop]: trace histogram [2, 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] [2021-10-16 22:46:20,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 22:46:20,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:20,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash 613213249, now seen corresponding path program 1 times [2021-10-16 22:46:20,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:20,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127817226] [2021-10-16 22:46:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:20,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:46:20,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:20,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127817226] [2021-10-16 22:46:20,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127817226] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:20,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032859598] [2021-10-16 22:46:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:20,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:20,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:20,602 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) [2021-10-16 22:46:20,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 22:46:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:20,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 22:46:20,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:20,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-16 22:46:20,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032859598] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:20,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 22:46:20,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-10-16 22:46:20,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043810593] [2021-10-16 22:46:20,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:46:20,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:20,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:46:20,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:20,781 INFO L87 Difference]: Start difference. First operand 441 states and 793 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) [2021-10-16 22:46:20,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:20,799 INFO L93 Difference]: Finished difference Result 440 states and 792 transitions. [2021-10-16 22:46:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:46:20,800 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 33 [2021-10-16 22:46:20,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:20,803 INFO L225 Difference]: With dead ends: 440 [2021-10-16 22:46:20,803 INFO L226 Difference]: Without dead ends: 440 [2021-10-16 22:46:20,804 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-10-16 22:46:20,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2021-10-16 22:46:20,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 436 states have (on average 1.81651376146789) internal successors, (792), 439 states have internal predecessors, (792), 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 22:46:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 792 transitions. [2021-10-16 22:46:20,821 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 792 transitions. Word has length 33 [2021-10-16 22:46:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:20,821 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 792 transitions. [2021-10-16 22:46:20,821 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) [2021-10-16 22:46:20,821 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 792 transitions. [2021-10-16 22:46:20,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-16 22:46:20,822 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:20,822 INFO L517 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-10-16 22:46:20,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:21,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:21,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:21,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1897678965, now seen corresponding path program 1 times [2021-10-16 22:46:21,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:21,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60095336] [2021-10-16 22:46:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:21,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:46:21,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:21,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60095336] [2021-10-16 22:46:21,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60095336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:21,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398435222] [2021-10-16 22:46:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:21,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:21,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:21,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:21,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 22:46:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:21,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 22:46:21,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-16 22:46:21,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398435222] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:21,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 22:46:21,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-10-16 22:46:21,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731825783] [2021-10-16 22:46:21,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:46:21,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:21,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:46:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:21,317 INFO L87 Difference]: Start difference. First operand 440 states and 792 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) [2021-10-16 22:46:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:21,331 INFO L93 Difference]: Finished difference Result 439 states and 791 transitions. [2021-10-16 22:46:21,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:46:21,332 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 34 [2021-10-16 22:46:21,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:21,333 INFO L225 Difference]: With dead ends: 439 [2021-10-16 22:46:21,334 INFO L226 Difference]: Without dead ends: 439 [2021-10-16 22:46:21,334 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.3ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:21,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-10-16 22:46:21,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2021-10-16 22:46:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 436 states have (on average 1.8142201834862386) internal successors, (791), 438 states have internal predecessors, (791), 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 22:46:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 791 transitions. [2021-10-16 22:46:21,347 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 791 transitions. Word has length 34 [2021-10-16 22:46:21,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:21,347 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 791 transitions. [2021-10-16 22:46:21,347 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) [2021-10-16 22:46:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 791 transitions. [2021-10-16 22:46:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-16 22:46:21,353 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:21,353 INFO L517 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:46:21,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:21,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-16 22:46:21,568 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:21,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:21,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1888545484, now seen corresponding path program 1 times [2021-10-16 22:46:21,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:21,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179082317] [2021-10-16 22:46:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:21,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:46:21,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:21,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179082317] [2021-10-16 22:46:21,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179082317] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:21,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401455940] [2021-10-16 22:46:21,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:21,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:21,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:21,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:21,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 22:46:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:21,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 22:46:21,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 22:46:21,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401455940] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:21,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 22:46:21,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-10-16 22:46:21,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517574284] [2021-10-16 22:46:21,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:46:21,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:21,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:46:21,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:21,782 INFO L87 Difference]: Start difference. First operand 439 states and 791 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 22:46:21,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:21,803 INFO L93 Difference]: Finished difference Result 470 states and 836 transitions. [2021-10-16 22:46:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:46:21,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-10-16 22:46:21,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:21,805 INFO L225 Difference]: With dead ends: 470 [2021-10-16 22:46:21,805 INFO L226 Difference]: Without dead ends: 340 [2021-10-16 22:46:21,805 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:21,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-16 22:46:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 322. [2021-10-16 22:46:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 319 states have (on average 1.7429467084639498) internal successors, (556), 321 states have internal predecessors, (556), 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 22:46:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 556 transitions. [2021-10-16 22:46:21,812 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 556 transitions. Word has length 38 [2021-10-16 22:46:21,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:21,812 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 556 transitions. [2021-10-16 22:46:21,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 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 22:46:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 556 transitions. [2021-10-16 22:46:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 22:46:21,814 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:21,815 INFO L517 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:46:21,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-16 22:46:22,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:22,029 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:22,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:22,029 INFO L82 PathProgramCache]: Analyzing trace with hash 81095754, now seen corresponding path program 1 times [2021-10-16 22:46:22,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:22,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301953369] [2021-10-16 22:46:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:22,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:46:22,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:22,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301953369] [2021-10-16 22:46:22,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301953369] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:22,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376094366] [2021-10-16 22:46:22,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:22,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:22,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:22,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:22,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 22:46:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:22,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 22:46:22,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 22:46:22,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376094366] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:22,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 22:46:22,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-10-16 22:46:22,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515095083] [2021-10-16 22:46:22,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 22:46:22,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:22,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 22:46:22,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:22,256 INFO L87 Difference]: Start difference. First operand 322 states and 556 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 22:46:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:22,271 INFO L93 Difference]: Finished difference Result 329 states and 555 transitions. [2021-10-16 22:46:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 22:46:22,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-10-16 22:46:22,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:22,273 INFO L225 Difference]: With dead ends: 329 [2021-10-16 22:46:22,273 INFO L226 Difference]: Without dead ends: 219 [2021-10-16 22:46:22,273 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.8ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 22:46:22,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-16 22:46:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-10-16 22:46:22,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 217 states have (on average 1.5714285714285714) internal successors, (341), 218 states have internal predecessors, (341), 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 22:46:22,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 341 transitions. [2021-10-16 22:46:22,277 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 341 transitions. Word has length 39 [2021-10-16 22:46:22,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:22,278 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 341 transitions. [2021-10-16 22:46:22,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 22:46:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 341 transitions. [2021-10-16 22:46:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-16 22:46:22,278 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:22,278 INFO L517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:46:22,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:22,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:22,488 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:22,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:22,488 INFO L82 PathProgramCache]: Analyzing trace with hash 673697310, now seen corresponding path program 1 times [2021-10-16 22:46:22,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:22,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050569432] [2021-10-16 22:46:22,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:22,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:46:22,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:22,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050569432] [2021-10-16 22:46:22,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050569432] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:22,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616030284] [2021-10-16 22:46:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:22,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:22,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:22,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:22,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-16 22:46:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:22,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 22:46:22,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:46:22,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616030284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:22,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 22:46:22,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-16 22:46:22,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222573290] [2021-10-16 22:46:22,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 22:46:22,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:22,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 22:46:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 22:46:22,744 INFO L87 Difference]: Start difference. First operand 219 states and 341 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 22:46:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:22,785 INFO L93 Difference]: Finished difference Result 231 states and 353 transitions. [2021-10-16 22:46:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 22:46:22,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 44 [2021-10-16 22:46:22,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:22,787 INFO L225 Difference]: With dead ends: 231 [2021-10-16 22:46:22,787 INFO L226 Difference]: Without dead ends: 231 [2021-10-16 22:46:22,787 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-16 22:46:22,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-16 22:46:22,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2021-10-16 22:46:22,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 227 states have (on average 1.5462555066079295) internal successors, (351), 228 states have internal predecessors, (351), 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 22:46:22,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 351 transitions. [2021-10-16 22:46:22,791 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 351 transitions. Word has length 44 [2021-10-16 22:46:22,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:22,791 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 351 transitions. [2021-10-16 22:46:22,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 22:46:22,792 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 351 transitions. [2021-10-16 22:46:22,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-16 22:46:22,792 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:22,792 INFO L517 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2021-10-16 22:46:22,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:23,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:23,011 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:23,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:23,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1487422468, now seen corresponding path program 2 times [2021-10-16 22:46:23,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:23,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557408] [2021-10-16 22:46:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:23,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 22:46:23,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:23,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557408] [2021-10-16 22:46:23,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557408] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:23,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:46:23,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 22:46:23,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809936904] [2021-10-16 22:46:23,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 22:46:23,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:23,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 22:46:23,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 22:46:23,085 INFO L87 Difference]: Start difference. First operand 229 states and 351 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 22:46:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:23,133 INFO L93 Difference]: Finished difference Result 486 states and 758 transitions. [2021-10-16 22:46:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 22:46:23,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 54 [2021-10-16 22:46:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:23,135 INFO L225 Difference]: With dead ends: 486 [2021-10-16 22:46:23,135 INFO L226 Difference]: Without dead ends: 436 [2021-10-16 22:46:23,135 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 22:46:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-10-16 22:46:23,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 239. [2021-10-16 22:46:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.5316455696202531) internal successors, (363), 238 states have internal predecessors, (363), 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 22:46:23,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 363 transitions. [2021-10-16 22:46:23,140 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 363 transitions. Word has length 54 [2021-10-16 22:46:23,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:23,140 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 363 transitions. [2021-10-16 22:46:23,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 22:46:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 363 transitions. [2021-10-16 22:46:23,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-16 22:46:23,141 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:23,141 INFO L517 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:46:23,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 22:46:23,141 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:23,141 INFO L82 PathProgramCache]: Analyzing trace with hash 193265778, now seen corresponding path program 1 times [2021-10-16 22:46:23,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:23,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642942255] [2021-10-16 22:46:23,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:23,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:23,201 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-16 22:46:23,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:23,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642942255] [2021-10-16 22:46:23,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642942255] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:23,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:46:23,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 22:46:23,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018493145] [2021-10-16 22:46:23,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 22:46:23,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:23,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 22:46:23,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 22:46:23,203 INFO L87 Difference]: Start difference. First operand 239 states and 363 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 22:46:23,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:23,230 INFO L93 Difference]: Finished difference Result 254 states and 379 transitions. [2021-10-16 22:46:23,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 22:46:23,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 69 [2021-10-16 22:46:23,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:23,232 INFO L225 Difference]: With dead ends: 254 [2021-10-16 22:46:23,232 INFO L226 Difference]: Without dead ends: 254 [2021-10-16 22:46:23,233 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 22:46:23,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-16 22:46:23,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-10-16 22:46:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 248 states have (on average 1.5120967741935485) internal successors, (375), 249 states have internal predecessors, (375), 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 22:46:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 375 transitions. [2021-10-16 22:46:23,237 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 375 transitions. Word has length 69 [2021-10-16 22:46:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:23,239 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 375 transitions. [2021-10-16 22:46:23,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 22:46:23,240 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 375 transitions. [2021-10-16 22:46:23,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-16 22:46:23,241 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:23,241 INFO L517 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 22:46:23,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 22:46:23,242 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:23,242 INFO L82 PathProgramCache]: Analyzing trace with hash -2128538087, now seen corresponding path program 1 times [2021-10-16 22:46:23,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:23,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113281749] [2021-10-16 22:46:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:23,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-16 22:46:23,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:23,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113281749] [2021-10-16 22:46:23,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113281749] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 22:46:23,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 22:46:23,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 22:46:23,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969773088] [2021-10-16 22:46:23,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 22:46:23,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 22:46:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 22:46:23,305 INFO L87 Difference]: Start difference. First operand 250 states and 375 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2021-10-16 22:46:23,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:23,336 INFO L93 Difference]: Finished difference Result 264 states and 391 transitions. [2021-10-16 22:46:23,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 22:46:23,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 69 [2021-10-16 22:46:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:23,339 INFO L225 Difference]: With dead ends: 264 [2021-10-16 22:46:23,339 INFO L226 Difference]: Without dead ends: 264 [2021-10-16 22:46:23,339 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 22:46:23,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-10-16 22:46:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 254. [2021-10-16 22:46:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 252 states have (on average 1.503968253968254) internal successors, (379), 253 states have internal predecessors, (379), 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 22:46:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 379 transitions. [2021-10-16 22:46:23,344 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 379 transitions. Word has length 69 [2021-10-16 22:46:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:23,344 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 379 transitions. [2021-10-16 22:46:23,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2021-10-16 22:46:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 379 transitions. [2021-10-16 22:46:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-16 22:46:23,345 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:23,345 INFO L517 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:23,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 22:46:23,345 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:23,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:23,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1080628560, now seen corresponding path program 2 times [2021-10-16 22:46:23,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:23,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696279874] [2021-10-16 22:46:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:23,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 37 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 22:46:23,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:23,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696279874] [2021-10-16 22:46:23,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696279874] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:23,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275618370] [2021-10-16 22:46:23,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 22:46:23,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:23,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:23,402 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:23,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 22:46:23,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 22:46:23,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 22:46:23,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 22:46:23,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 37 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 22:46:23,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275618370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:23,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 22:46:23,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-16 22:46:23,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231850063] [2021-10-16 22:46:23,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 22:46:23,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 22:46:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 22:46:23,731 INFO L87 Difference]: Start difference. First operand 254 states and 379 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 22:46:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:23,780 INFO L93 Difference]: Finished difference Result 266 states and 391 transitions. [2021-10-16 22:46:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 22:46:23,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 79 [2021-10-16 22:46:23,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:23,781 INFO L225 Difference]: With dead ends: 266 [2021-10-16 22:46:23,781 INFO L226 Difference]: Without dead ends: 266 [2021-10-16 22:46:23,782 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 39.4ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-10-16 22:46:23,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-16 22:46:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 264. [2021-10-16 22:46:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 262 states have (on average 1.484732824427481) internal successors, (389), 263 states have internal predecessors, (389), 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 22:46:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 389 transitions. [2021-10-16 22:46:23,787 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 389 transitions. Word has length 79 [2021-10-16 22:46:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:23,787 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 389 transitions. [2021-10-16 22:46:23,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 22:46:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 389 transitions. [2021-10-16 22:46:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-10-16 22:46:23,788 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:23,788 INFO L517 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:23,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:24,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:24,004 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:24,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:24,004 INFO L82 PathProgramCache]: Analyzing trace with hash 282913458, now seen corresponding path program 3 times [2021-10-16 22:46:24,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:24,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530125674] [2021-10-16 22:46:24,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:24,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-16 22:46:24,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:24,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530125674] [2021-10-16 22:46:24,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530125674] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:24,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956029810] [2021-10-16 22:46:24,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-16 22:46:24,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:24,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:24,044 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:24,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-16 22:46:24,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-16 22:46:24,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 22:46:24,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 22:46:24,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-16 22:46:24,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956029810] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:24,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 22:46:24,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-16 22:46:24,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708765181] [2021-10-16 22:46:24,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 22:46:24,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:24,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 22:46:24,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 22:46:24,375 INFO L87 Difference]: Start difference. First operand 264 states and 389 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 22:46:24,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:24,440 INFO L93 Difference]: Finished difference Result 278 states and 404 transitions. [2021-10-16 22:46:24,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 22:46:24,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 89 [2021-10-16 22:46:24,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:24,442 INFO L225 Difference]: With dead ends: 278 [2021-10-16 22:46:24,442 INFO L226 Difference]: Without dead ends: 278 [2021-10-16 22:46:24,442 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 27.2ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-10-16 22:46:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-16 22:46:24,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 274. [2021-10-16 22:46:24,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 272 states have (on average 1.4705882352941178) internal successors, (400), 273 states have internal predecessors, (400), 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 22:46:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 400 transitions. [2021-10-16 22:46:24,446 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 400 transitions. Word has length 89 [2021-10-16 22:46:24,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:24,446 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 400 transitions. [2021-10-16 22:46:24,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 22:46:24,446 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 400 transitions. [2021-10-16 22:46:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-10-16 22:46:24,447 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:24,447 INFO L517 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:24,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:24,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:24,664 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:24,664 INFO L82 PathProgramCache]: Analyzing trace with hash 391338905, now seen corresponding path program 2 times [2021-10-16 22:46:24,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:24,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451864833] [2021-10-16 22:46:24,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:24,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 50 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 22:46:24,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:24,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451864833] [2021-10-16 22:46:24,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451864833] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:24,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581940641] [2021-10-16 22:46:24,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 22:46:24,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:24,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:24,719 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:24,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-16 22:46:24,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 22:46:24,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 22:46:24,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 22:46:24,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 50 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 22:46:25,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581940641] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:25,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 22:46:25,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-10-16 22:46:25,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268895191] [2021-10-16 22:46:25,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 22:46:25,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:25,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 22:46:25,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-16 22:46:25,071 INFO L87 Difference]: Start difference. First operand 274 states and 400 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 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 22:46:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:25,153 INFO L93 Difference]: Finished difference Result 274 states and 399 transitions. [2021-10-16 22:46:25,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 22:46:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 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 89 [2021-10-16 22:46:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:25,155 INFO L225 Difference]: With dead ends: 274 [2021-10-16 22:46:25,155 INFO L226 Difference]: Without dead ends: 274 [2021-10-16 22:46:25,155 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 53.0ms TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-10-16 22:46:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-10-16 22:46:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 273. [2021-10-16 22:46:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 271 states have (on average 1.4686346863468636) internal successors, (398), 272 states have internal predecessors, (398), 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 22:46:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 398 transitions. [2021-10-16 22:46:25,159 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 398 transitions. Word has length 89 [2021-10-16 22:46:25,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:25,160 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 398 transitions. [2021-10-16 22:46:25,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 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 22:46:25,160 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 398 transitions. [2021-10-16 22:46:25,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-10-16 22:46:25,160 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:25,160 INFO L517 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:25,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:25,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-16 22:46:25,376 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:25,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:25,376 INFO L82 PathProgramCache]: Analyzing trace with hash 160509840, now seen corresponding path program 4 times [2021-10-16 22:46:25,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:25,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771410037] [2021-10-16 22:46:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:25,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-16 22:46:25,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:25,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771410037] [2021-10-16 22:46:25,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771410037] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:25,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082385995] [2021-10-16 22:46:25,433 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-16 22:46:25,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:25,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:25,447 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:25,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 22:46:25,644 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-16 22:46:25,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 22:46:25,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 22:46:25,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-16 22:46:25,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082385995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:25,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 22:46:25,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-16 22:46:25,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909014568] [2021-10-16 22:46:25,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 22:46:25,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:25,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 22:46:25,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 22:46:25,811 INFO L87 Difference]: Start difference. First operand 273 states and 398 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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 22:46:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:25,872 INFO L93 Difference]: Finished difference Result 298 states and 425 transitions. [2021-10-16 22:46:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-16 22:46:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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 99 [2021-10-16 22:46:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:25,873 INFO L225 Difference]: With dead ends: 298 [2021-10-16 22:46:25,873 INFO L226 Difference]: Without dead ends: 298 [2021-10-16 22:46:25,874 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 44.2ms TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2021-10-16 22:46:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-10-16 22:46:25,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 283. [2021-10-16 22:46:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 281 states have (on average 1.4555160142348755) internal successors, (409), 282 states have internal predecessors, (409), 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 22:46:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 409 transitions. [2021-10-16 22:46:25,879 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 409 transitions. Word has length 99 [2021-10-16 22:46:25,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:25,879 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 409 transitions. [2021-10-16 22:46:25,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 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 22:46:25,879 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 409 transitions. [2021-10-16 22:46:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-16 22:46:25,880 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:25,880 INFO L517 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:25,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:26,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-16 22:46:26,096 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:26,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1894549778, now seen corresponding path program 5 times [2021-10-16 22:46:26,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:26,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41763069] [2021-10-16 22:46:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:26,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 124 proven. 45 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-16 22:46:26,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:26,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41763069] [2021-10-16 22:46:26,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41763069] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:26,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047841624] [2021-10-16 22:46:26,205 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-16 22:46:26,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:26,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:26,206 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:26,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-16 22:46:26,436 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-10-16 22:46:26,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 22:46:26,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-16 22:46:26,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 22:46:26,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047841624] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:26,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 22:46:26,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 17 [2021-10-16 22:46:26,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099225781] [2021-10-16 22:46:26,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-16 22:46:26,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:26,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-16 22:46:26,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-10-16 22:46:26,758 INFO L87 Difference]: Start difference. First operand 283 states and 409 transitions. Second operand has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 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 22:46:26,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:26,916 INFO L93 Difference]: Finished difference Result 293 states and 421 transitions. [2021-10-16 22:46:26,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 22:46:26,916 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 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 109 [2021-10-16 22:46:26,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:26,917 INFO L225 Difference]: With dead ends: 293 [2021-10-16 22:46:26,917 INFO L226 Difference]: Without dead ends: 293 [2021-10-16 22:46:26,918 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 175.1ms TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2021-10-16 22:46:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-10-16 22:46:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-10-16 22:46:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 291 states have (on average 1.4467353951890034) internal successors, (421), 292 states have internal predecessors, (421), 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 22:46:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 421 transitions. [2021-10-16 22:46:26,922 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 421 transitions. Word has length 109 [2021-10-16 22:46:26,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:26,922 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 421 transitions. [2021-10-16 22:46:26,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 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 22:46:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 421 transitions. [2021-10-16 22:46:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-10-16 22:46:26,923 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:26,924 INFO L517 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:26,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:27,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-16 22:46:27,140 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:27,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1655070843, now seen corresponding path program 1 times [2021-10-16 22:46:27,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:27,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030806408] [2021-10-16 22:46:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:27,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 106 proven. 4 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-10-16 22:46:27,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 22:46:27,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030806408] [2021-10-16 22:46:27,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030806408] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:27,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633260659] [2021-10-16 22:46:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:27,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 22:46:27,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 22:46:27,186 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 22:46:27,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-16 22:46:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 22:46:27,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 22:46:27,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 22:46:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 106 proven. 4 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-10-16 22:46:27,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633260659] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 22:46:27,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-16 22:46:27,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-16 22:46:27,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809109708] [2021-10-16 22:46:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 22:46:27,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 22:46:27,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 22:46:27,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 22:46:27,674 INFO L87 Difference]: Start difference. First operand 293 states and 421 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 22:46:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 22:46:27,713 INFO L93 Difference]: Finished difference Result 303 states and 433 transitions. [2021-10-16 22:46:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 22:46:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 134 [2021-10-16 22:46:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 22:46:27,714 INFO L225 Difference]: With dead ends: 303 [2021-10-16 22:46:27,714 INFO L226 Difference]: Without dead ends: 303 [2021-10-16 22:46:27,716 INFO L842 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2021-10-16 22:46:27,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-10-16 22:46:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2021-10-16 22:46:27,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 301 states have (on average 1.4385382059800664) internal successors, (433), 302 states have internal predecessors, (433), 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 22:46:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 433 transitions. [2021-10-16 22:46:27,720 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 433 transitions. Word has length 134 [2021-10-16 22:46:27,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 22:46:27,721 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 433 transitions. [2021-10-16 22:46:27,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 22:46:27,721 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 433 transitions. [2021-10-16 22:46:27,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-10-16 22:46:27,722 INFO L509 BasicCegarLoop]: Found error trace [2021-10-16 22:46:27,722 INFO L517 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:27,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-16 22:46:27,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-16 22:46:27,935 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2021-10-16 22:46:27,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 22:46:27,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1321453405, now seen corresponding path program 2 times [2021-10-16 22:46:27,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 22:46:27,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654225512] [2021-10-16 22:46:27,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 22:46:27,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 22:46:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:46:27,973 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 22:46:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 22:46:28,027 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 22:46:28,027 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 22:46:28,028 WARN L672 BasicCegarLoop]: Found data race on ~glob~0 between C: glob++ [1002] and C: glob++ [984] [2021-10-16 22:46:28,028 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location fErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:46:28,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:46:28,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:46:28,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:46:28,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-10-16 22:46:28,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 22:46:28,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 22:46:28,034 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 22:46:28,034 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 22:46:28,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:46:28 BasicIcfg [2021-10-16 22:46:28,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 22:46:28,096 INFO L168 Benchmark]: Toolchain (without parser) took 8905.08 ms. Allocated memory was 200.3 MB in the beginning and 299.9 MB in the end (delta: 99.6 MB). Free memory was 141.5 MB in the beginning and 264.8 MB in the end (delta: -123.3 MB). Peak memory consumption was 117.4 MB. Max. memory is 8.0 GB. [2021-10-16 22:46:28,097 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 200.3 MB. Free memory was 160.1 MB in the beginning and 160.0 MB in the end (delta: 129.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 22:46:28,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.70 ms. Allocated memory was 200.3 MB in the beginning and 249.6 MB in the end (delta: 49.3 MB). Free memory was 141.4 MB in the beginning and 204.4 MB in the end (delta: -63.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. [2021-10-16 22:46:28,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.89 ms. Allocated memory is still 249.6 MB. Free memory was 204.4 MB in the beginning and 202.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:46:28,097 INFO L168 Benchmark]: Boogie Preprocessor took 27.23 ms. Allocated memory is still 249.6 MB. Free memory was 202.3 MB in the beginning and 200.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 22:46:28,097 INFO L168 Benchmark]: RCFGBuilder took 374.63 ms. Allocated memory is still 249.6 MB. Free memory was 200.8 MB in the beginning and 188.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-16 22:46:28,098 INFO L168 Benchmark]: TraceAbstraction took 8040.72 ms. Allocated memory was 249.6 MB in the beginning and 299.9 MB in the end (delta: 50.3 MB). Free memory was 188.2 MB in the beginning and 264.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 114.8 MB. Max. memory is 8.0 GB. [2021-10-16 22:46:28,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 200.3 MB. Free memory was 160.1 MB in the beginning and 160.0 MB in the end (delta: 129.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 413.70 ms. Allocated memory was 200.3 MB in the beginning and 249.6 MB in the end (delta: 49.3 MB). Free memory was 141.4 MB in the beginning and 204.4 MB in the end (delta: -63.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.89 ms. Allocated memory is still 249.6 MB. Free memory was 204.4 MB in the beginning and 202.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.23 ms. Allocated memory is still 249.6 MB. Free memory was 202.3 MB in the beginning and 200.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 374.63 ms. Allocated memory is still 249.6 MB. Free memory was 200.8 MB in the beginning and 188.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8040.72 ms. Allocated memory was 249.6 MB in the beginning and 299.9 MB in the end (delta: 50.3 MB). Free memory was 188.2 MB in the beginning and 264.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 114.8 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: 984]: the program contains a data race the program contains a data race We found a FailurePath: [L980] 0 int glob; VAL [glob=0] [L981] 0 pthread_mutex_t *p, *q; VAL [glob=0, p={0:0}, q={0:0}] [L989] 0 pthread_t t1, t2; VAL [glob=0, p={0:0}, q={0:0}] [L990] 0 int i; VAL [glob=0, p={0:0}, q={0:0}] [L991] 0 pthread_mutex_t *a; VAL [glob=0, p={0:0}, q={0:0}] [L992] 0 i=0 VAL [glob=0, p={0:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={0:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={0:0}, q={0:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={0:0}, q={0:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={0:0}, q={0:0}] [L992] 0 i++ VAL [glob=0, p={0:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={0:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={0:0}, q={0:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={0:0}, q={0:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={0:0}, q={0:0}] [L992] 0 i++ VAL [glob=0, p={0:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={0:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={0:0}, q={0:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={0:0}, q={0:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={0:0}, q={0:0}] [L992] 0 i++ VAL [glob=0, p={0:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={0:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={0:0}, q={0:0}] [L995] COND TRUE 0 i==3 VAL [glob=0, p={0:0}, q={0:0}] [L996] 0 p = a VAL [glob=0, p={-5:0}, q={0:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={-5:0}, q={0:0}] [L992] 0 i++ VAL [glob=0, p={-5:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={-5:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={-5:0}, q={0:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={-5:0}, q={0:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={-5:0}, q={0:0}] [L992] 0 i++ VAL [glob=0, p={-5:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={-5:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={-5:0}, q={0:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={-5:0}, q={0:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={-5:0}, q={0:0}] [L992] 0 i++ VAL [glob=0, p={-5:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={-5:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={-5:0}, q={0:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={-5:0}, q={0:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={-5:0}, q={0:0}] [L992] 0 i++ VAL [glob=0, p={-5:0}, q={0:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={-5:0}, q={0:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={-5:0}, q={0:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={-5:0}, q={0:0}] [L997] COND TRUE 0 i==7 VAL [glob=0, p={-5:0}, q={0:0}] [L998] 0 q = a VAL [glob=0, p={-5:0}, q={-9:0}] [L992] 0 i++ VAL [glob=0, p={-5:0}, q={-9:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={-5:0}, q={-9:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={-5:0}, q={-9:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={-5:0}, q={-9:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={-5:0}, q={-9:0}] [L992] 0 i++ VAL [glob=0, p={-5:0}, q={-9:0}] [L992] COND TRUE 0 i < 10 VAL [glob=0, p={-5:0}, q={-9:0}] [L993] 0 a = malloc(sizeof(pthread_mutex_t)) VAL [glob=0, p={-5:0}, q={-9:0}] [L995] COND FALSE 0 !(i==3) VAL [glob=0, p={-5:0}, q={-9:0}] [L997] COND FALSE 0 !(i==7) VAL [glob=0, p={-5:0}, q={-9:0}] [L992] 0 i++ VAL [glob=0, p={-5:0}, q={-9:0}] [L992] COND FALSE 0 !(i < 10) VAL [glob=0, p={-5:0}, q={-9:0}] [L1000] FCALL, FORK 0 pthread_create(&t1, 0, f, 0) VAL [glob=0, p={-5:0}, q={-9:0}, x={0:0}] [L984] 1 glob++ VAL [glob=1, glob++=29, glob++=26, glob++=0, p={-5:0}, q={-9:0}, x={0:0}, x={0:0}] [L984] 1 glob++ VAL [glob=1, glob++=29, glob++=26, glob++=0, p={-5:0}, q={-9:0}, x={0:0}, x={0:0}] - UnprovableResult [Line: 996]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 998]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1002]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1000]: 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, 107 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7883.4ms, OverallIterations: 16, TraceHistogramMax: 10, EmptinessCheckTime: 20.4ms, AutomataDifference: 800.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 47.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1266 SDtfs, 537 SDslu, 3142 SDs, 0 SdLazy, 526 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 297.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 916 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 493.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred in iteration=1, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 121.6ms AutomataMinimizationTime, 15 MinimizatonAttempts, 255 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 128.4ms SsaConstructionTime, 412.9ms SatisfiabilityAnalysisTime, 2450.6ms InterpolantComputationTime, 1933 NumberOfCodeBlocks, 1897 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1763 ConstructedInterpolants, 0 QuantifiedInterpolants, 3005 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1669 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 1659/2142 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 22:46:28,120 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...