/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/weaver/test-easy11.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:03:31,126 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-16 23:03:31,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:03:31,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:03:31,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:03:31,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-16 23:03:31,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:03:31,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:03:31,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:03:31,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:03:31,256 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:03:31,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:03:31,256 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:03:31,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:03:31,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:03:31,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:03:31,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:03:31,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:03:31,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:03:31,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:03:31,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:03:31,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:03:31,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:03:31,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:03:31,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:03:31,259 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:03:31,259 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:03:31,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:03:31,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:03:31,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:03:31,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:03:31,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:03:31,487 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:03:31,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy11.wvr.c [2021-10-16 23:03:31,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e83bb8a5/c58372518d664fba8cc19fc5a3582861/FLAGf15d9f344 [2021-10-16 23:03:31,958 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:03:31,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy11.wvr.c [2021-10-16 23:03:31,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e83bb8a5/c58372518d664fba8cc19fc5a3582861/FLAGf15d9f344 [2021-10-16 23:03:31,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e83bb8a5/c58372518d664fba8cc19fc5a3582861 [2021-10-16 23:03:31,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:03:31,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:03:31,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:03:31,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:03:31,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:03:31,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:03:31" (1/1) ... [2021-10-16 23:03:31,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b156f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:31, skipping insertion in model container [2021-10-16 23:03:31,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:03:31" (1/1) ... [2021-10-16 23:03:31,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:03:32,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:03:32,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy11.wvr.c[1893,1906] [2021-10-16 23:03:32,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:03:32,160 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:03:32,181 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy11.wvr.c[1893,1906] [2021-10-16 23:03:32,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:03:32,191 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:03:32,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32 WrapperNode [2021-10-16 23:03:32,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:03:32,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:03:32,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:03:32,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:03:32,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:03:32,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:03:32,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:03:32,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:03:32,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:03:32,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:03:32,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:03:32,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:03:32,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (1/1) ... [2021-10-16 23:03:32,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:03:32,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:03:32,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 23:03:32,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 23:03:32,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 23:03:32,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 23:03:32,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-16 23:03:32,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-16 23:03:32,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:03:32,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:03:32,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:03:32,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:03:32,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:03:32,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:03:32,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:03:32,303 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:03:32,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:03:32,531 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-16 23:03:32,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:03:32 BoogieIcfgContainer [2021-10-16 23:03:32,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:03:32,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:03:32,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:03:32,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:03:32,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:03:31" (1/3) ... [2021-10-16 23:03:32,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475571cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:03:32, skipping insertion in model container [2021-10-16 23:03:32,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:32" (2/3) ... [2021-10-16 23:03:32,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475571cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:03:32, skipping insertion in model container [2021-10-16 23:03:32,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:03:32" (3/3) ... [2021-10-16 23:03:32,538 INFO L111 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2021-10-16 23:03:32,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:03:32,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 23:03:32,541 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:03:32,596 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,597 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,597 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,597 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,597 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,597 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,598 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,598 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,598 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,598 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,601 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,602 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,602 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,603 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,603 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,603 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,603 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,608 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,611 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,612 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,612 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,613 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,613 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,613 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,613 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,613 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,614 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,618 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,618 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,618 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,619 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,620 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,620 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,621 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,624 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,624 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,625 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,625 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~x~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,629 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:32,642 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-16 23:03:32,679 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:03:32,683 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 23:03:32,683 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 23:03:32,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 123 transitions, 262 flow [2021-10-16 23:03:32,765 INFO L129 PetriNetUnfolder]: 6/121 cut-off events. [2021-10-16 23:03:32,765 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-16 23:03:32,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 121 events. 6/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-10-16 23:03:32,769 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 123 transitions, 262 flow [2021-10-16 23:03:32,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 101 transitions, 211 flow [2021-10-16 23:03:32,779 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-10-16 23:03:32,779 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:03:32,779 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:03:32,780 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:03:32,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 23:03:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:03:32,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1821264004, now seen corresponding path program 1 times [2021-10-16 23:03:32,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:03:32,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307147484] [2021-10-16 23:03:32,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:03:32,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:03:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:03:32,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:03:32,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:03:32,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307147484] [2021-10-16 23:03:32,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307147484] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:03:32,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:03:32,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:03:32,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081222778] [2021-10-16 23:03:32,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:03:32,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:03:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:03:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:03:32,963 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2021-10-16 23:03:32,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 101 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:32,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:03:32,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2021-10-16 23:03:32,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:03:33,019 INFO L129 PetriNetUnfolder]: 4/126 cut-off events. [2021-10-16 23:03:33,020 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-16 23:03:33,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 126 events. 4/126 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 219 event pairs, 1 based on Foata normal form. 5/123 useless extension candidates. Maximal degree in co-relation 94. Up to 9 conditions per place. [2021-10-16 23:03:33,022 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 6 selfloop transitions, 2 changer transitions 1/97 dead transitions. [2021-10-16 23:03:33,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 97 transitions, 219 flow [2021-10-16 23:03:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:03:33,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:03:33,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2021-10-16 23:03:33,037 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9186991869918699 [2021-10-16 23:03:33,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2021-10-16 23:03:33,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2021-10-16 23:03:33,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:03:33,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2021-10-16 23:03:33,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,052 INFO L186 Difference]: Start difference. First operand has 103 places, 101 transitions, 211 flow. Second operand 3 states and 339 transitions. [2021-10-16 23:03:33,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 97 transitions, 219 flow [2021-10-16 23:03:33,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 214 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-16 23:03:33,058 INFO L242 Difference]: Finished difference. Result has 101 places, 96 transitions, 200 flow [2021-10-16 23:03:33,059 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=101, PETRI_TRANSITIONS=96} [2021-10-16 23:03:33,060 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, -2 predicate places. [2021-10-16 23:03:33,060 INFO L470 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 200 flow [2021-10-16 23:03:33,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,061 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:03:33,061 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:03:33,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:03:33,062 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 23:03:33,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:03:33,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1173566863, now seen corresponding path program 1 times [2021-10-16 23:03:33,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:03:33,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195119870] [2021-10-16 23:03:33,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:03:33,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:03:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:03:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:03:33,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:03:33,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195119870] [2021-10-16 23:03:33,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195119870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:03:33,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:03:33,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:03:33,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639435198] [2021-10-16 23:03:33,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:03:33,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:03:33,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:03:33,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:03:33,127 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 123 [2021-10-16 23:03:33,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:03:33,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 123 [2021-10-16 23:03:33,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:03:33,189 INFO L129 PetriNetUnfolder]: 31/208 cut-off events. [2021-10-16 23:03:33,190 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:03:33,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 208 events. 31/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 679 event pairs, 14 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 262. Up to 54 conditions per place. [2021-10-16 23:03:33,194 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 11 selfloop transitions, 5 changer transitions 1/102 dead transitions. [2021-10-16 23:03:33,194 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 102 transitions, 246 flow [2021-10-16 23:03:33,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:03:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:03:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2021-10-16 23:03:33,196 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9105691056910569 [2021-10-16 23:03:33,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2021-10-16 23:03:33,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2021-10-16 23:03:33,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:03:33,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2021-10-16 23:03:33,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,201 INFO L186 Difference]: Start difference. First operand has 101 places, 96 transitions, 200 flow. Second operand 3 states and 336 transitions. [2021-10-16 23:03:33,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 102 transitions, 246 flow [2021-10-16 23:03:33,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 102 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:03:33,204 INFO L242 Difference]: Finished difference. Result has 102 places, 100 transitions, 234 flow [2021-10-16 23:03:33,204 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2021-10-16 23:03:33,204 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, -1 predicate places. [2021-10-16 23:03:33,205 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 234 flow [2021-10-16 23:03:33,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,205 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:03:33,205 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:03:33,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:03:33,205 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 23:03:33,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:03:33,206 INFO L82 PathProgramCache]: Analyzing trace with hash -692547639, now seen corresponding path program 1 times [2021-10-16 23:03:33,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:03:33,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245368795] [2021-10-16 23:03:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:03:33,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:03:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:03:33,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:03:33,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:03:33,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245368795] [2021-10-16 23:03:33,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245368795] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:03:33,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:03:33,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:03:33,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661611965] [2021-10-16 23:03:33,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:03:33,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:03:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:03:33,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:03:33,310 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 123 [2021-10-16 23:03:33,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:03:33,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 123 [2021-10-16 23:03:33,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:03:33,351 INFO L129 PetriNetUnfolder]: 41/271 cut-off events. [2021-10-16 23:03:33,352 INFO L130 PetriNetUnfolder]: For 60/63 co-relation queries the response was YES. [2021-10-16 23:03:33,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 271 events. 41/271 cut-off events. For 60/63 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1005 event pairs, 15 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 204. Up to 63 conditions per place. [2021-10-16 23:03:33,353 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 11 selfloop transitions, 5 changer transitions 6/107 dead transitions. [2021-10-16 23:03:33,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 107 transitions, 302 flow [2021-10-16 23:03:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:03:33,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:03:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2021-10-16 23:03:33,354 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9105691056910569 [2021-10-16 23:03:33,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2021-10-16 23:03:33,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2021-10-16 23:03:33,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:03:33,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2021-10-16 23:03:33,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,356 INFO L186 Difference]: Start difference. First operand has 102 places, 100 transitions, 234 flow. Second operand 3 states and 336 transitions. [2021-10-16 23:03:33,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 107 transitions, 302 flow [2021-10-16 23:03:33,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 107 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:03:33,358 INFO L242 Difference]: Finished difference. Result has 104 places, 100 transitions, 250 flow [2021-10-16 23:03:33,359 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2021-10-16 23:03:33,359 INFO L334 CegarLoopForPetriNet]: 103 programPoint places, 1 predicate places. [2021-10-16 23:03:33,359 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 250 flow [2021-10-16 23:03:33,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:33,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:03:33,359 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:03:33,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:03:33,360 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-10-16 23:03:33,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:03:33,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1938850189, now seen corresponding path program 1 times [2021-10-16 23:03:33,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:03:33,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851798336] [2021-10-16 23:03:33,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:03:33,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:03:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:03:33,381 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:03:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:03:33,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:03:33,418 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:03:33,418 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:33,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:33,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:33,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:33,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:03:33,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 23:03:33,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:33,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:03:33,428 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:03:33,428 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:03:33,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:03:33 BasicIcfg [2021-10-16 23:03:33,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:03:33,458 INFO L168 Benchmark]: Toolchain (without parser) took 1476.10 ms. Allocated memory was 180.4 MB in the beginning and 222.3 MB in the end (delta: 41.9 MB). Free memory was 125.7 MB in the beginning and 165.1 MB in the end (delta: -39.5 MB). Peak memory consumption was 2.2 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:33,458 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 180.4 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:03:33,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.31 ms. Allocated memory was 180.4 MB in the beginning and 222.3 MB in the end (delta: 41.9 MB). Free memory was 125.4 MB in the beginning and 194.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:33,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.00 ms. Allocated memory is still 222.3 MB. Free memory was 194.7 MB in the beginning and 193.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:33,459 INFO L168 Benchmark]: Boogie Preprocessor took 18.20 ms. Allocated memory is still 222.3 MB. Free memory was 193.1 MB in the beginning and 192.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:33,459 INFO L168 Benchmark]: RCFGBuilder took 295.28 ms. Allocated memory is still 222.3 MB. Free memory was 192.0 MB in the beginning and 179.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:33,460 INFO L168 Benchmark]: TraceAbstraction took 923.15 ms. Allocated memory is still 222.3 MB. Free memory was 178.4 MB in the beginning and 165.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:33,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 180.4 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 209.31 ms. Allocated memory was 180.4 MB in the beginning and 222.3 MB in the end (delta: 41.9 MB). Free memory was 125.4 MB in the beginning and 194.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.00 ms. Allocated memory is still 222.3 MB. Free memory was 194.7 MB in the beginning and 193.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.20 ms. Allocated memory is still 222.3 MB. Free memory was 193.1 MB in the beginning and 192.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 295.28 ms. Allocated memory is still 222.3 MB. Free memory was 192.0 MB in the beginning and 179.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 923.15 ms. Allocated memory is still 222.3 MB. Free memory was 178.4 MB in the beginning and 165.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 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: 46]: the program contains a data race the program contains a data race We found a FailurePath: [L38] 0 int X, Y; VAL [X=0, Y=0] [L63] 0 pthread_t t1, t2; VAL [X=0, Y=0] [L65] 0 X = __VERIFIER_nondet_int() VAL [X=10000, Y=0] [L35] COND FALSE 0 !(!cond) VAL [X=10000, Y=0] [L69] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [X=10000, Y=0] [L41] 1 int x; VAL [X=10000, Y=0] [L43] COND FALSE 1 !(x < 10000) VAL [X=10000, x=10000, Y=0] [L46] 1 Y = Y + x VAL [X=10000, x=10000, Y=10000, Y + x=10001, Y = Y + x=10005] [L70] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [x=10000, X=10000, Y=10000, Y + x=10001, Y = Y + x=10005] [L52] 2 int x; VAL [x=10000, X=10000, Y=10000, Y + x=10001, Y = Y + x=10005] [L54] COND FALSE 2 !(x < 10000) VAL [X=10000, x=10000, x=10000, Y=10000, Y + x=10001, Y = Y + x=10005] [L46] 1 Y = Y + x VAL [x=10000, x=10000, X=10000, Y=10000, Y + x=10007, Y + x=10001, Y = Y + x=10005] - UnprovableResult [Line: 57]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 70]: 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 5 procedures, 162 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 749.8ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 233.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 89.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 48.3ms SsaConstructionTime, 87.0ms SatisfiabilityAnalysisTime, 123.4ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:03:33,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...