/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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 14:22:38,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 14:22:38,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 14:22:38,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 14:22:38,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 14:22:38,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 14:22:38,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 14:22:38,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 14:22:38,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 14:22:38,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 14:22:38,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 14:22:38,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 14:22:38,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 14:22:38,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 14:22:38,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 14:22:38,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 14:22:38,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 14:22:38,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 14:22:38,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 14:22:38,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 14:22:38,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 14:22:38,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 14:22:38,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 14:22:38,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 14:22:38,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 14:22:38,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 14:22:38,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 14:22:38,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 14:22:38,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 14:22:38,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 14:22:38,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 14:22:38,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 14:22:38,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 14:22:38,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 14:22:38,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 14:22:38,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 14:22:38,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 14:22:38,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 14:22:38,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 14:22:38,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 14:22:38,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 14:22:38,445 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 [2021-06-10 14:22:38,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 14:22:38,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 14:22:38,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 14:22:38,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 14:22:38,489 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 14:22:38,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 14:22:38,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 14:22:38,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 14:22:38,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 14:22:38,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 14:22:38,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 14:22:38,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 14:22:38,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 14:22:38,491 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 14:22:38,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 14:22:38,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 14:22:38,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 14:22:38,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 14:22:38,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 14:22:38,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 14:22:38,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 14:22:38,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:22:38,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 14:22:38,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 14:22:38,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 14:22:38,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 14:22:38,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 14:22:38,494 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 14:22:38,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 14:22:38,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 14:22:38,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 14:22:38,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 14:22:38,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 14:22:38,913 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 14:22:38,914 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 14:22:38,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-06-10 14:22:38,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d9557ea/a1266af64e4740b89cf912529f27c55f/FLAG8bb89cd54 [2021-06-10 14:22:39,384 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 14:22:39,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/16-goto-outside.c [2021-06-10 14:22:39,385 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-10 14:22:39,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d9557ea/a1266af64e4740b89cf912529f27c55f/FLAG8bb89cd54 [2021-06-10 14:22:39,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d9557ea/a1266af64e4740b89cf912529f27c55f [2021-06-10 14:22:39,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 14:22:39,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 14:22:39,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 14:22:39,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 14:22:39,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 14:22:39,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:39,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac0d0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39, skipping insertion in model container [2021-06-10 14:22:39,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:39,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 14:22:39,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 14:22:39,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:22:39,945 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 14:22:39,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:22:39,969 INFO L208 MainTranslator]: Completed translation [2021-06-10 14:22:39,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39 WrapperNode [2021-06-10 14:22:39,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 14:22:39,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 14:22:39,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 14:22:39,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 14:22:39,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:39,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 14:22:40,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 14:22:40,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 14:22:40,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 14:22:40,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (1/1) ... [2021-06-10 14:22:40,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 14:22:40,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 14:22:40,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 14:22:40,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 14:22:40,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (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 [2021-06-10 14:22:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 14:22:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 14:22:40,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 14:22:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-10 14:22:40,114 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-10 14:22:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 14:22:40,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 14:22:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 14:22:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 14:22:40,118 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 14:22:40,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 14:22:40,408 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-10 14:22:40,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:22:40 BoogieIcfgContainer [2021-06-10 14:22:40,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 14:22:40,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 14:22:40,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 14:22:40,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 14:22:40,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 02:22:39" (1/3) ... [2021-06-10 14:22:40,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378c4f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:22:40, skipping insertion in model container [2021-06-10 14:22:40,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:39" (2/3) ... [2021-06-10 14:22:40,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378c4f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:22:40, skipping insertion in model container [2021-06-10 14:22:40,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:22:40" (3/3) ... [2021-06-10 14:22:40,417 INFO L111 eAbstractionObserver]: Analyzing ICFG 16-goto-outside.c [2021-06-10 14:22:40,424 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 14:22:40,427 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 14:22:40,428 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 14:22:40,448 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,449 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,449 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,449 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,449 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,449 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,449 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,450 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,450 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,450 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,450 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,450 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,452 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,453 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,453 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,453 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:40,470 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 14:22:40,490 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-10 14:22:40,511 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 14:22:40,511 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 14:22:40,511 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 14:22:40,511 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 14:22:40,512 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 14:22:40,512 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 14:22:40,512 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 14:22:40,512 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 14:22:40,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-06-10 14:22:40,567 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-06-10 14:22:40,568 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:40,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-10 14:22:40,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-06-10 14:22:40,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2021-06-10 14:22:40,588 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-10 14:22:40,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:40,588 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:22:40,589 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:22:40,593 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:22:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:22:40,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1295432649, now seen corresponding path program 1 times [2021-06-10 14:22:40,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:22:40,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939500151] [2021-06-10 14:22:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:22:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:22:40,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:22:40,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:40,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:22:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 14:22:40,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939500151] [2021-06-10 14:22:40,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:22:40,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 14:22:40,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759723286] [2021-06-10 14:22:40,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 14:22:40,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:22:40,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 14:22:40,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 14:22:40,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 23 [2021-06-10 14:22:40,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-06-10 14:22:40,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:22:40,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 23 [2021-06-10 14:22:40,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:22:40,882 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-06-10 14:22:40,882 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:40,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-10 14:22:40,883 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 1 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-06-10 14:22:40,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 49 flow [2021-06-10 14:22:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 14:22:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 14:22:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2021-06-10 14:22:40,896 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.855072463768116 [2021-06-10 14:22:40,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 59 transitions. [2021-06-10 14:22:40,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 59 transitions. [2021-06-10 14:22:40,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:22:40,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 59 transitions. [2021-06-10 14:22:40,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-06-10 14:22:40,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2021-06-10 14:22:40,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2021-06-10 14:22:40,909 INFO L185 Difference]: Start difference. First operand has 23 places, 19 transitions, 41 flow. Second operand 3 states and 59 transitions. [2021-06-10 14:22:40,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 49 flow [2021-06-10 14:22:40,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 48 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 14:22:40,917 INFO L241 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2021-06-10 14:22:40,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2021-06-10 14:22:40,920 INFO L343 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2021-06-10 14:22:40,920 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2021-06-10 14:22:40,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-06-10 14:22:40,920 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:22:40,920 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:22:40,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 14:22:40,921 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:22:40,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:22:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash 629736550, now seen corresponding path program 1 times [2021-06-10 14:22:40,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:22:40,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767288604] [2021-06-10 14:22:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:22:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 14:22:40,966 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 14:22:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-10 14:22:40,980 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-10 14:22:41,006 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-10 14:22:41,007 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-10 14:22:41,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 14:22:41,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 02:22:41 BasicIcfg [2021-06-10 14:22:41,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 14:22:41,036 INFO L168 Benchmark]: Toolchain (without parser) took 1243.16 ms. Allocated memory is still 356.5 MB. Free memory was 319.0 MB in the beginning and 295.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:41,037 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 356.5 MB. Free memory is still 337.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:22:41,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.23 ms. Allocated memory is still 356.5 MB. Free memory was 318.8 MB in the beginning and 340.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:41,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.54 ms. Allocated memory is still 356.5 MB. Free memory was 340.0 MB in the beginning and 338.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:41,043 INFO L168 Benchmark]: Boogie Preprocessor took 28.36 ms. Allocated memory is still 356.5 MB. Free memory was 338.8 MB in the beginning and 337.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:22:41,044 INFO L168 Benchmark]: RCFGBuilder took 367.14 ms. Allocated memory is still 356.5 MB. Free memory was 337.7 MB in the beginning and 323.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:41,045 INFO L168 Benchmark]: TraceAbstraction took 621.72 ms. Allocated memory is still 356.5 MB. Free memory was 322.2 MB in the beginning and 295.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:41,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 356.5 MB. Free memory is still 337.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 176.23 ms. Allocated memory is still 356.5 MB. Free memory was 318.8 MB in the beginning and 340.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.54 ms. Allocated memory is still 356.5 MB. Free memory was 340.0 MB in the beginning and 338.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.36 ms. Allocated memory is still 356.5 MB. Free memory was 338.8 MB in the beginning and 337.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 367.14 ms. Allocated memory is still 356.5 MB. Free memory was 337.7 MB in the beginning and 323.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 621.72 ms. Allocated memory is still 356.5 MB. Free memory was 322.2 MB in the beginning and 295.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 0; VAL [x=0] [L16] 0 int y; VAL [x=0, y=0] [L24] 0 pthread_t threadId; VAL [x=0, y=0] [L25] FCALL, FORK 0 pthread_create(&threadId, NULL, & foo, NULL) VAL [arg={0:0}, x=0, y=0] [L28] 0 x = x + 1 [L29] COND TRUE 0 x != y VAL [arg={0:0}, arg={0:0}, x=1, y=0] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=1, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 501.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 91.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 71.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=1, InterpolantAutomatonStates: 3, 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: 20.2ms SsaConstructionTime, 48.4ms SatisfiabilityAnalysisTime, 83.1ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...