/usr/bin/java -Xmx16000000000 -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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 11:37:39,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 11:37:39,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 11:37:39,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 11:37:39,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 11:37:39,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 11:37:39,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 11:37:39,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 11:37:39,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 11:37:39,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 11:37:39,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 11:37:39,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 11:37:39,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 11:37:39,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 11:37:39,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 11:37:39,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 11:37:39,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 11:37:39,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 11:37:39,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 11:37:39,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 11:37:39,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 11:37:39,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 11:37:39,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 11:37:39,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 11:37:39,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 11:37:39,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 11:37:39,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 11:37:39,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 11:37:39,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 11:37:39,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 11:37:39,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 11:37:39,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 11:37:39,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 11:37:39,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 11:37:39,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 11:37:39,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 11:37:39,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 11:37:39,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 11:37:39,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 11:37:39,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 11:37:39,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 11:37:39,382 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-SemanticLbe.epf [2021-03-11 11:37:39,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 11:37:39,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 11:37:39,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 11:37:39,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 11:37:39,417 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 11:37:39,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 11:37:39,418 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 11:37:39,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 11:37:39,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 11:37:39,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 11:37:39,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 11:37:39,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 11:37:39,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 11:37:39,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 11:37:39,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 11:37:39,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 11:37:39,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 11:37:39,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 11:37:39,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 11:37:39,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 11:37:39,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 11:37:39,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 11:37:39,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 11:37:39,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 11:37:39,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 11:37:39,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 11:37:39,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 11:37:39,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 11:37:39,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 11:37:39,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 11:37:39,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 11:37:39,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 11:37:39,736 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 11:37:39,736 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 11:37:39,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-03-11 11:37:39,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10073373/7793633fca5c4103afaadfb99314e8a9/FLAGbc5411a35 [2021-03-11 11:37:40,442 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 11:37:40,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-03-11 11:37:40,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10073373/7793633fca5c4103afaadfb99314e8a9/FLAGbc5411a35 [2021-03-11 11:37:40,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10073373/7793633fca5c4103afaadfb99314e8a9 [2021-03-11 11:37:40,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 11:37:40,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 11:37:40,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 11:37:40,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 11:37:40,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 11:37:40,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 11:37:40" (1/1) ... [2021-03-11 11:37:40,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9abe29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:40, skipping insertion in model container [2021-03-11 11:37:40,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 11:37:40" (1/1) ... [2021-03-11 11:37:40,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 11:37:40,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 11:37:41,308 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2021-03-11 11:37:41,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 11:37:41,330 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 11:37:41,384 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2021-03-11 11:37:41,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 11:37:41,714 INFO L208 MainTranslator]: Completed translation [2021-03-11 11:37:41,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41 WrapperNode [2021-03-11 11:37:41,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 11:37:41,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 11:37:41,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 11:37:41,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 11:37:41,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 11:37:41,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 11:37:41,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 11:37:41,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 11:37:41,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... [2021-03-11 11:37:41,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 11:37:41,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 11:37:41,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 11:37:41,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 11:37:41,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 11:37:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 11:37:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 11:37:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 11:37:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 11:37:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 11:37:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 11:37:41,917 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 11:37:42,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 11:37:42,542 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-03-11 11:37:42,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 11:37:42 BoogieIcfgContainer [2021-03-11 11:37:42,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 11:37:42,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 11:37:42,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 11:37:42,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 11:37:42,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 11:37:40" (1/3) ... [2021-03-11 11:37:42,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590b2dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 11:37:42, skipping insertion in model container [2021-03-11 11:37:42,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:37:41" (2/3) ... [2021-03-11 11:37:42,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590b2dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 11:37:42, skipping insertion in model container [2021-03-11 11:37:42,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 11:37:42" (3/3) ... [2021-03-11 11:37:42,552 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2021-03-11 11:37:42,557 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 11:37:42,557 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 11:37:42,561 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-03-11 11:37:42,561 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 11:37:42,579 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,580 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,580 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,580 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,580 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,580 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,581 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,582 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,583 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,583 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,584 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,584 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:37:42,587 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 11:37:42,601 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 11:37:42,616 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 11:37:42,617 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 11:37:42,617 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 11:37:42,617 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 11:37:42,617 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 11:37:42,617 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 11:37:42,617 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 11:37:42,617 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 11:37:42,628 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 11:37:42,636 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 87 transitions, 182 flow [2021-03-11 11:37:42,638 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 87 transitions, 182 flow [2021-03-11 11:37:42,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 87 transitions, 182 flow [2021-03-11 11:37:42,668 INFO L129 PetriNetUnfolder]: 4/98 cut-off events. [2021-03-11 11:37:42,668 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 11:37:42,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 4/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2021-03-11 11:37:42,672 INFO L116 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-11 11:37:44,547 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-03-11 11:37:45,271 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-11 11:37:45,491 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2021-03-11 11:37:45,938 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-11 11:37:46,055 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-11 11:37:46,172 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-03-11 11:37:46,292 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-03-11 11:37:46,497 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2021-03-11 11:37:46,848 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 114 [2021-03-11 11:37:46,954 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-03-11 11:37:47,101 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-03-11 11:37:47,240 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-03-11 11:37:47,383 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-03-11 11:37:47,526 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-03-11 11:37:47,528 INFO L131 LiptonReduction]: Checked pairs total: 293 [2021-03-11 11:37:47,528 INFO L133 LiptonReduction]: Total number of compositions: 97 [2021-03-11 11:37:47,545 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2021-03-11 11:37:47,551 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 21 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 20 states have internal predecessors, (26), 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) [2021-03-11 11:37:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 20 states have internal predecessors, (26), 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) [2021-03-11 11:37:47,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-03-11 11:37:47,555 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:37:47,556 INFO L519 BasicCegarLoop]: trace histogram [1] [2021-03-11 11:37:47,556 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:37:47,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:37:47,560 INFO L82 PathProgramCache]: Analyzing trace with hash 354, now seen corresponding path program 1 times [2021-03-11 11:37:47,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:37:47,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188109891] [2021-03-11 11:37:47,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:37:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:37:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:37:47,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188109891] [2021-03-11 11:37:47,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:37:47,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-03-11 11:37:47,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015215932] [2021-03-11 11:37:47,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 11:37:47,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:37:47,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 11:37:47,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 11:37:47,754 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-03-11 11:37:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:37:47,762 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-03-11 11:37:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 11:37:47,763 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2021-03-11 11:37:47,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:37:47,768 INFO L225 Difference]: With dead ends: 18 [2021-03-11 11:37:47,768 INFO L226 Difference]: Without dead ends: 8 [2021-03-11 11:37:47,769 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 11:37:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-03-11 11:37:47,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-03-11 11:37:47,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-03-11 11:37:47,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-03-11 11:37:47,790 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2021-03-11 11:37:47,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:37:47,790 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-03-11 11:37:47,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-03-11 11:37:47,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-03-11 11:37:47,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-03-11 11:37:47,791 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:37:47,791 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-03-11 11:37:47,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 11:37:47,792 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:37:47,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:37:47,792 INFO L82 PathProgramCache]: Analyzing trace with hash 10894040, now seen corresponding path program 1 times [2021-03-11 11:37:47,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:37:47,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980352623] [2021-03-11 11:37:47,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:37:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:37:47,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:37:47,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:37:47,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:37:47,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:37:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:37:47,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980352623] [2021-03-11 11:37:47,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:37:47,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 11:37:47,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518857742] [2021-03-11 11:37:47,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 11:37:47,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:37:47,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 11:37:47,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 11:37:47,980 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-03-11 11:37:47,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:37:47,994 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-03-11 11:37:47,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 11:37:47,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-03-11 11:37:47,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:37:47,995 INFO L225 Difference]: With dead ends: 8 [2021-03-11 11:37:47,995 INFO L226 Difference]: Without dead ends: 6 [2021-03-11 11:37:47,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 11:37:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-03-11 11:37:47,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-03-11 11:37:47,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2021-03-11 11:37:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2021-03-11 11:37:47,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2021-03-11 11:37:47,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:37:47,998 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2021-03-11 11:37:47,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-03-11 11:37:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2021-03-11 11:37:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-03-11 11:37:47,999 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:37:47,999 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 11:37:48,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 11:37:48,000 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:37:48,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:37:48,001 INFO L82 PathProgramCache]: Analyzing trace with hash 337720778, now seen corresponding path program 1 times [2021-03-11 11:37:48,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:37:48,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835583386] [2021-03-11 11:37:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:37:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 11:37:48,027 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 11:37:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 11:37:48,042 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 11:37:48,060 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 11:37:48,060 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 11:37:48,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 11:37:48,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 11:37:48 BasicIcfg [2021-03-11 11:37:48,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 11:37:48,078 INFO L168 Benchmark]: Toolchain (without parser) took 7293.78 ms. Allocated memory was 343.9 MB in the beginning and 471.9 MB in the end (delta: 127.9 MB). Free memory was 305.6 MB in the beginning and 259.2 MB in the end (delta: 46.5 MB). Peak memory consumption was 176.8 MB. Max. memory is 16.0 GB. [2021-03-11 11:37:48,078 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 343.9 MB. Free memory is still 325.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 11:37:48,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 924.83 ms. Allocated memory is still 343.9 MB. Free memory was 305.1 MB in the beginning and 278.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 74.8 MB. Max. memory is 16.0 GB. [2021-03-11 11:37:48,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.69 ms. Allocated memory is still 343.9 MB. Free memory was 278.9 MB in the beginning and 275.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-11 11:37:48,080 INFO L168 Benchmark]: Boogie Preprocessor took 57.09 ms. Allocated memory is still 343.9 MB. Free memory was 275.7 MB in the beginning and 273.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 11:37:48,080 INFO L168 Benchmark]: RCFGBuilder took 690.04 ms. Allocated memory is still 343.9 MB. Free memory was 273.6 MB in the beginning and 232.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. [2021-03-11 11:37:48,081 INFO L168 Benchmark]: TraceAbstraction took 5531.02 ms. Allocated memory was 343.9 MB in the beginning and 471.9 MB in the end (delta: 127.9 MB). Free memory was 231.7 MB in the beginning and 259.2 MB in the end (delta: -27.5 MB). Peak memory consumption was 100.4 MB. Max. memory is 16.0 GB. [2021-03-11 11:37:48,083 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 343.9 MB. Free memory is still 325.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 924.83 ms. Allocated memory is still 343.9 MB. Free memory was 305.1 MB in the beginning and 278.9 MB in the end (delta: 26.2 MB). Peak memory consumption was 74.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 79.69 ms. Allocated memory is still 343.9 MB. Free memory was 278.9 MB in the beginning and 275.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.09 ms. Allocated memory is still 343.9 MB. Free memory was 275.7 MB in the beginning and 273.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 690.04 ms. Allocated memory is still 343.9 MB. Free memory was 273.6 MB in the beginning and 232.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5531.02 ms. Allocated memory was 343.9 MB in the beginning and 471.9 MB in the end (delta: 127.9 MB). Free memory was 231.7 MB in the beginning and 259.2 MB in the end (delta: -27.5 MB). Peak memory consumption was 100.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4889.7ms, 86 PlacesBefore, 17 PlacesAfterwards, 87 TransitionsBefore, 15 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 97 TotalNumberOfCompositions, 293 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 180, positive: 168, positive conditional: 0, positive unconditional: 168, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 180, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 246, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 180, unknown conditional: 0, unknown unconditional: 180] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={5:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={5:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 83 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5446.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 5.0ms, AutomataDifference: 45.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4933.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.9ms SsaConstructionTime, 71.0ms SatisfiabilityAnalysisTime, 149.6ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! Received shutdown request...