/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET --buchiautomizer.use.buchi.petri.net.intersection.optimizations true --buchiautomizer.use.automata.for.buchi.petri.net.emptiness.check false -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-10 00:33:07,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-10 00:33:07,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-10 00:33:07,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-10 00:33:07,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-10 00:33:07,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-10 00:33:07,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-10 00:33:07,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-10 00:33:07,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-10 00:33:07,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-10 00:33:07,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-10 00:33:07,592 INFO L153 SettingsManager]: * Use SBE=true [2024-02-10 00:33:07,593 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-10 00:33:07,593 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-10 00:33:07,593 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-10 00:33:07,593 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-10 00:33:07,594 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-10 00:33:07,594 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-10 00:33:07,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-10 00:33:07,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-10 00:33:07,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-10 00:33:07,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-10 00:33:07,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-10 00:33:07,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-10 00:33:07,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-10 00:33:07,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-10 00:33:07,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-10 00:33:07,598 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-10 00:33:07,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-10 00:33:07,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-10 00:33:07,600 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-10 00:33:07,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-10 00:33:07,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-10 00:33:07,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-10 00:33:07,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-10 00:33:07,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-10 00:33:07,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-10 00:33:07,601 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-10 00:33:07,602 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Use Buchi Petri Net Intersection Optimizations -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Use automata for Buchi Petri Net emptiness check -> false [2024-02-10 00:33:07,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-10 00:33:08,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-10 00:33:08,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-10 00:33:08,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-10 00:33:08,008 INFO L274 PluginConnector]: CDTParser initialized [2024-02-10 00:33:08,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2024-02-10 00:33:09,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-10 00:33:09,511 INFO L384 CDTParser]: Found 1 translation units. [2024-02-10 00:33:09,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2024-02-10 00:33:09,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0647976b/05f0c32d0d884ff2a1028d329ae25c73/FLAG1728bc5e4 [2024-02-10 00:33:09,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0647976b/05f0c32d0d884ff2a1028d329ae25c73 [2024-02-10 00:33:09,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-10 00:33:09,551 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-10 00:33:09,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-10 00:33:09,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-10 00:33:09,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-10 00:33:09,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:33:09" (1/1) ... [2024-02-10 00:33:09,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376f515b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:09, skipping insertion in model container [2024-02-10 00:33:09,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:33:09" (1/1) ... [2024-02-10 00:33:09,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-10 00:33:09,868 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2024-02-10 00:33:10,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-10 00:33:10,078 INFO L202 MainTranslator]: Completed pre-run [2024-02-10 00:33:10,102 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2024-02-10 00:33:10,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-10 00:33:10,173 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-02-10 00:33:10,174 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-02-10 00:33:10,174 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2024-02-10 00:33:10,180 INFO L206 MainTranslator]: Completed translation [2024-02-10 00:33:10,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10 WrapperNode [2024-02-10 00:33:10,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-10 00:33:10,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-10 00:33:10,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-10 00:33:10,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-10 00:33:10,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,236 INFO L138 Inliner]: procedures = 171, calls = 77, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 179 [2024-02-10 00:33:10,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-10 00:33:10,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-10 00:33:10,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-10 00:33:10,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-10 00:33:10,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-10 00:33:10,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-10 00:33:10,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-10 00:33:10,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-10 00:33:10,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (1/1) ... [2024-02-10 00:33:10,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-10 00:33:10,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-10 00:33:10,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-10 00:33:10,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-02-10 00:33:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-02-10 00:33:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-02-10 00:33:10,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-02-10 00:33:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-02-10 00:33:10,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-02-10 00:33:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-02-10 00:33:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-10 00:33:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-10 00:33:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-10 00:33:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-10 00:33:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-02-10 00:33:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-10 00:33:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-10 00:33:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-10 00:33:10,349 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-10 00:33:10,476 INFO L236 CfgBuilder]: Building ICFG [2024-02-10 00:33:10,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-10 00:33:10,652 INFO L277 CfgBuilder]: Performing block encoding [2024-02-10 00:33:10,659 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-10 00:33:10,659 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2024-02-10 00:33:10,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:33:10 BoogieIcfgContainer [2024-02-10 00:33:10,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-10 00:33:10,668 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-10 00:33:10,668 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-10 00:33:10,672 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-10 00:33:10,673 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-10 00:33:10,674 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.02 12:33:09" (1/3) ... [2024-02-10 00:33:10,675 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d934baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.02 12:33:10, skipping insertion in model container [2024-02-10 00:33:10,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-10 00:33:10,676 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:33:10" (2/3) ... [2024-02-10 00:33:10,677 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d934baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.02 12:33:10, skipping insertion in model container [2024-02-10 00:33:10,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-10 00:33:10,679 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:33:10" (3/3) ... [2024-02-10 00:33:10,681 INFO L332 chiAutomizerObserver]: Analyzing ICFG szymanski.i [2024-02-10 00:33:10,802 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-10 00:33:10,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 123 transitions, 260 flow [2024-02-10 00:33:10,881 INFO L124 PetriNetUnfolderBase]: 22/119 cut-off events. [2024-02-10 00:33:10,882 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-10 00:33:10,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 119 events. 22/119 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 182 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 91. Up to 3 conditions per place. [2024-02-10 00:33:10,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 123 transitions, 260 flow [2024-02-10 00:33:10,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 119 transitions, 250 flow [2024-02-10 00:33:10,899 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-10 00:33:10,899 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-10 00:33:10,899 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-10 00:33:10,899 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-10 00:33:10,899 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-10 00:33:10,899 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-10 00:33:10,899 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-10 00:33:10,899 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2024-02-10 00:33:10,900 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 places, 119 transitions, 250 flow [2024-02-10 00:33:10,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-10 00:33:10,907 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-02-10 00:33:10,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-10 00:33:10,907 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-10 00:33:10,909 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-10 00:33:10,910 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 places, 119 transitions, 250 flow [2024-02-10 00:33:10,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-10 00:33:10,915 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-02-10 00:33:10,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-10 00:33:10,915 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-10 00:33:10,921 INFO L748 eck$LassoCheckResult]: Stem: 110#[$Ultimate##0]true [243] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_9| 0) 0) InVars {#valid=|v_#valid_9|} OutVars{#valid=|v_#valid_9|} AuxVars[] AssignedVars[] 112#[L-1]true [249] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 114#[L12]true [286] L12-->L12-1: Formula: (and (= (select |v_#valid_10| 1) 1) (= 2 (select |v_#length_5| 1))) InVars {#length=|v_#length_5|, #valid=|v_#valid_10|} OutVars{#length=|v_#length_5|, #valid=|v_#valid_10|} AuxVars[] AssignedVars[] 116#[L12-1]true [304] L12-1-->L12-2: Formula: (= (select (select |v_#memory_int_7| 1) 0) 48) InVars {#memory_int=|v_#memory_int_7|} OutVars{#memory_int=|v_#memory_int_7|} AuxVars[] AssignedVars[] 118#[L12-2]true [303] L12-2-->L12-3: Formula: (= (select (select |v_#memory_int_8| 1) 1) 0) InVars {#memory_int=|v_#memory_int_8|} OutVars{#memory_int=|v_#memory_int_8|} AuxVars[] AssignedVars[] 120#[L12-3]true [320] L12-3-->L12-4: Formula: (and (= (select |v_#length_6| 2) 12) (= (select |v_#valid_11| 2) 1)) InVars {#length=|v_#length_6|, #valid=|v_#valid_11|} OutVars{#length=|v_#length_6|, #valid=|v_#valid_11|} AuxVars[] AssignedVars[] 122#[L12-4]true [314] L12-4-->L700: Formula: (= v_~flag1~0_15 0) InVars {} OutVars{~flag1~0=v_~flag1~0_15} AuxVars[] AssignedVars[~flag1~0] 124#[L700]true [270] L700-->L701: Formula: (= v_~flag2~0_15 0) InVars {} OutVars{~flag2~0=v_~flag2~0_15} AuxVars[] AssignedVars[~flag2~0] 126#[L701]true [323] L701-->L-1-1: Formula: (= v_~x~0_7 0) InVars {} OutVars{~x~0=v_~x~0_7} AuxVars[] AssignedVars[~x~0] 128#[L-1-1]true [328] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 130#[L-1-2]true [329] L-1-2-->L817: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_5|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#1_4|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_6|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_3|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_4|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_6|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_5|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_6|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 132#[L817]true [268] L817-->L817-1: Formula: (and (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_7| 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_7| 0) (= (store |v_#length_8| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 4) |v_#length_7|) (= |v_#valid_12| (store |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 1)) (= (select |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_7|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_8|, #valid=|v_#valid_13|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_7|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_7|, #valid=|v_#valid_12|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 134#[L817-1]true [283] L817-1-->L817-2: Formula: (and (= |v_#length_9| (store |v_#length_10| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 4)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_7|) (= 0 (select |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7|)) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_7|) (= (store |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 1) |v_#valid_14|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_7| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_10|, #valid=|v_#valid_15|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_9|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_7|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_7|, #valid=|v_#valid_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 136#[L817-2]true [221] L817-2-->L818: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_1| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 138#[L818]true [287] L818-->L818-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 140#[L818-1]true [291] L818-1-->L818-2: Formula: (and (= (store |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1| (store (select |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) |v_ULTIMATE.start_main_~#t1~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre4#1_2|)) |v_#memory_int_1|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_1| 4) (select |v_#length_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_1|) (= (select |v_#valid_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) 1)) InVars {#valid=|v_#valid_1|, #memory_int=|v_#memory_int_2|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} OutVars{#valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} AuxVars[] AssignedVars[#memory_int] 142#[L818-2]true [420] L818-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork0_thidvar0_2) (= |v_thr1Thread1of1ForFork0_#in~_#1.base_4| 0) (= v_thr1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_4|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_4|, thr1Thread1of1ForFork0_#res#1.offset=|v_thr1Thread1of1ForFork0_#res#1.offset_4|, thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_40|, thr1Thread1of1ForFork0_thidvar0=v_thr1Thread1of1ForFork0_thidvar0_2, thr1Thread1of1ForFork0_thidvar1=v_thr1Thread1of1ForFork0_thidvar1_2, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr1Thread1of1ForFork0_#res#1.base=|v_thr1Thread1of1ForFork0_#res#1.base_4|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_4|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_4|, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_#in~_#1.base, thr1Thread1of1ForFork0_#res#1.offset, thr1Thread1of1ForFork0_~f21~0#1, thr1Thread1of1ForFork0_thidvar0, thr1Thread1of1ForFork0_thidvar1, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork0_#res#1.base, thr1Thread1of1ForFork0_~_#1.base, thr1Thread1of1ForFork0_#in~_#1.offset, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base] 144#[L818-3, $Ultimate##0]true [378] $Ultimate##0-->L703: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.base_1| |v_thr1Thread1of1ForFork0_~_#1.base_1|) (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_1| |v_thr1Thread1of1ForFork0_~_#1.offset_1|)) InVars {thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_1|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_~_#1.base] 146#[L703, L818-3]true [379] L703-->L705: Formula: (= v_~flag1~0_11 1) InVars {} OutVars{~flag1~0=v_~flag1~0_11} AuxVars[] AssignedVars[~flag1~0] 148#[L818-3, L705]true [380] L705-->L712: Formula: (= |v_thr1Thread1of1ForFork0_~f21~0#1_1| v_~flag2~0_8) InVars {~flag2~0=v_~flag2~0_8} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_1|, ~flag2~0=v_~flag2~0_8} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~f21~0#1] 150#[L712, L818-3]true [2024-02-10 00:33:10,921 INFO L750 eck$LassoCheckResult]: Loop: 150#[L712, L818-3]true [381] L712-->L710: Formula: (<= 3 |v_thr1Thread1of1ForFork0_~f21~0#1_3|) InVars {thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_3|} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_3|} AuxVars[] AssignedVars[] 153#[L818-3, L710]true [384] L710-->L712: Formula: (= |v_thr1Thread1of1ForFork0_~f21~0#1_7| v_~flag2~0_10) InVars {~flag2~0=v_~flag2~0_10} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_7|, ~flag2~0=v_~flag2~0_10} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~f21~0#1] 150#[L712, L818-3]true [2024-02-10 00:33:10,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:10,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1613535555, now seen corresponding path program 1 times [2024-02-10 00:33:10,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:10,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765732580] [2024-02-10 00:33:10,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:10,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:11,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:11,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:11,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:11,095 INFO L85 PathProgramCache]: Analyzing trace with hash 13156, now seen corresponding path program 1 times [2024-02-10 00:33:11,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:11,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002521545] [2024-02-10 00:33:11,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:11,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:11,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:11,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:11,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:11,122 INFO L85 PathProgramCache]: Analyzing trace with hash 124486694, now seen corresponding path program 1 times [2024-02-10 00:33:11,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:11,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849134559] [2024-02-10 00:33:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:11,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:33:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-10 00:33:11,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-10 00:33:11,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849134559] [2024-02-10 00:33:11,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849134559] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-10 00:33:11,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-10 00:33:11,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-10 00:33:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058016701] [2024-02-10 00:33:11,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-10 00:33:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-10 00:33:11,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-10 00:33:11,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-10 00:33:11,744 INFO L175 Difference]: Start difference. First operand has 104 places, 119 transitions, 250 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:11,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 119 transitions, 250 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:11,753 INFO L120 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2024-02-10 00:33:11,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-10 00:33:11,927 INFO L124 PetriNetUnfolderBase]: 116/478 cut-off events. [2024-02-10 00:33:11,928 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-10 00:33:11,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 478 events. 116/478 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2487 event pairs, 23 based on Foata normal form. 111/526 useless extension candidates. Maximal degree in co-relation 596. Up to 105 conditions per place. [2024-02-10 00:33:11,939 INFO L140 encePairwiseOnDemand]: 94/123 looper letters, 30 selfloop transitions, 17 changer transitions 0/129 dead transitions. [2024-02-10 00:33:11,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 364 flow [2024-02-10 00:33:11,941 INFO L231 Difference]: Finished difference. Result has 111 places, 117 transitions, 350 flow [2024-02-10 00:33:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-10 00:33:11,946 INFO L428 stractBuchiCegarLoop]: Abstraction has has 111 places, 117 transitions, 350 flow [2024-02-10 00:33:11,946 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-10 00:33:11,946 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 places, 117 transitions, 350 flow [2024-02-10 00:33:11,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-10 00:33:11,951 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-02-10 00:33:11,951 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-02-10 00:33:11,952 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-10 00:33:11,953 INFO L748 eck$LassoCheckResult]: Stem: 110#[$Ultimate##0]true [243] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_9| 0) 0) InVars {#valid=|v_#valid_9|} OutVars{#valid=|v_#valid_9|} AuxVars[] AssignedVars[] 112#[L-1]true [249] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 114#[L12]true [286] L12-->L12-1: Formula: (and (= (select |v_#valid_10| 1) 1) (= 2 (select |v_#length_5| 1))) InVars {#length=|v_#length_5|, #valid=|v_#valid_10|} OutVars{#length=|v_#length_5|, #valid=|v_#valid_10|} AuxVars[] AssignedVars[] 116#[L12-1]true [304] L12-1-->L12-2: Formula: (= (select (select |v_#memory_int_7| 1) 0) 48) InVars {#memory_int=|v_#memory_int_7|} OutVars{#memory_int=|v_#memory_int_7|} AuxVars[] AssignedVars[] 118#[L12-2]true [303] L12-2-->L12-3: Formula: (= (select (select |v_#memory_int_8| 1) 1) 0) InVars {#memory_int=|v_#memory_int_8|} OutVars{#memory_int=|v_#memory_int_8|} AuxVars[] AssignedVars[] 120#[L12-3]true [320] L12-3-->L12-4: Formula: (and (= (select |v_#length_6| 2) 12) (= (select |v_#valid_11| 2) 1)) InVars {#length=|v_#length_6|, #valid=|v_#valid_11|} OutVars{#length=|v_#length_6|, #valid=|v_#valid_11|} AuxVars[] AssignedVars[] 122#[L12-4]true [314] L12-4-->L700: Formula: (= v_~flag1~0_15 0) InVars {} OutVars{~flag1~0=v_~flag1~0_15} AuxVars[] AssignedVars[~flag1~0] 124#[L700]true [270] L700-->L701: Formula: (= v_~flag2~0_15 0) InVars {} OutVars{~flag2~0=v_~flag2~0_15} AuxVars[] AssignedVars[~flag2~0] 126#[L701]true [323] L701-->L-1-1: Formula: (= v_~x~0_7 0) InVars {} OutVars{~x~0=v_~x~0_7} AuxVars[] AssignedVars[~x~0] 128#[L-1-1]true [328] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 130#[L-1-2]true [329] L-1-2-->L817: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_5|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#1_4|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_6|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_3|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_4|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_6|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_5|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_6|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 132#[L817]true [268] L817-->L817-1: Formula: (and (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_7| 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_7| 0) (= (store |v_#length_8| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 4) |v_#length_7|) (= |v_#valid_12| (store |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 1)) (= (select |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_7|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_8|, #valid=|v_#valid_13|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_7|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_7|, #valid=|v_#valid_12|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 134#[L817-1]true [283] L817-1-->L817-2: Formula: (and (= |v_#length_9| (store |v_#length_10| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 4)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_7|) (= 0 (select |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7|)) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_7|) (= (store |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 1) |v_#valid_14|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_7| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_10|, #valid=|v_#valid_15|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_9|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_7|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_7|, #valid=|v_#valid_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 136#[L817-2]true [221] L817-2-->L818: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_1| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 138#[L818]true [287] L818-->L818-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 140#[L818-1]true [291] L818-1-->L818-2: Formula: (and (= (store |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1| (store (select |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) |v_ULTIMATE.start_main_~#t1~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre4#1_2|)) |v_#memory_int_1|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_1| 4) (select |v_#length_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_1|) (= (select |v_#valid_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) 1)) InVars {#valid=|v_#valid_1|, #memory_int=|v_#memory_int_2|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} OutVars{#valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} AuxVars[] AssignedVars[#memory_int] 142#[L818-2]true [420] L818-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork0_thidvar0_2) (= |v_thr1Thread1of1ForFork0_#in~_#1.base_4| 0) (= v_thr1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_4|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_4|, thr1Thread1of1ForFork0_#res#1.offset=|v_thr1Thread1of1ForFork0_#res#1.offset_4|, thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_40|, thr1Thread1of1ForFork0_thidvar0=v_thr1Thread1of1ForFork0_thidvar0_2, thr1Thread1of1ForFork0_thidvar1=v_thr1Thread1of1ForFork0_thidvar1_2, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr1Thread1of1ForFork0_#res#1.base=|v_thr1Thread1of1ForFork0_#res#1.base_4|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_4|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_4|, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_#in~_#1.base, thr1Thread1of1ForFork0_#res#1.offset, thr1Thread1of1ForFork0_~f21~0#1, thr1Thread1of1ForFork0_thidvar0, thr1Thread1of1ForFork0_thidvar1, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork0_#res#1.base, thr1Thread1of1ForFork0_~_#1.base, thr1Thread1of1ForFork0_#in~_#1.offset, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base] 144#[L818-3, $Ultimate##0]true [317] L818-3-->L818-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 213#[L818-4, $Ultimate##0]true [248] L818-4-->L819: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 215#[L819, $Ultimate##0]true [258] L819-->L819-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_1| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 217#[L819-1, $Ultimate##0]true [227] L819-1-->L819-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 219#[L819-2, $Ultimate##0]true [306] L819-2-->L819-3: Formula: (and (= (select |v_#valid_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) 1) (<= (+ 4 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (select |v_#length_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (= |v_#memory_int_3| (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) |v_ULTIMATE.start_main_~#t2~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre6#1_2|)))) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_4|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_3|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[#memory_int] 221#[L819-3, $Ultimate##0]true [423] L819-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork1_thidvar2_2 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork1_thidvar0_2) (= |v_thr2Thread1of1ForFork1_#in~_#1.base_4| 0) (= v_thr2Thread1of1ForFork1_thidvar1_2 0) (= |v_thr2Thread1of1ForFork1_#in~_#1.offset_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork1_#res#1.offset=|v_thr2Thread1of1ForFork1_#res#1.offset_4|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_40|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_4|, thr2Thread1of1ForFork1_thidvar0=v_thr2Thread1of1ForFork1_thidvar0_2, thr2Thread1of1ForFork1_thidvar1=v_thr2Thread1of1ForFork1_thidvar1_2, thr2Thread1of1ForFork1_thidvar2=v_thr2Thread1of1ForFork1_thidvar2_2, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_4|, thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork1_#res#1.base=|v_thr2Thread1of1ForFork1_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_thidvar0, thr2Thread1of1ForFork1_thidvar1, thr2Thread1of1ForFork1_thidvar2, thr2Thread1of1ForFork1_#res#1.offset, thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork1_#in~_#1.base, thr2Thread1of1ForFork1_~_#1.offset, thr2Thread1of1ForFork1_~f12~0#1, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork1_#res#1.base, thr2Thread1of1ForFork1_#in~_#1.offset] 223#[L819-4, $Ultimate##0, $Ultimate##0]true [338] $Ultimate##0-->L760: Formula: (and (= |v_thr2Thread1of1ForFork1_~_#1.base_1| |v_thr2Thread1of1ForFork1_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork1_~_#1.offset_1| |v_thr2Thread1of1ForFork1_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_1|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_1|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_~_#1.offset] 225#[L819-4, L760, $Ultimate##0]true [339] L760-->L762: Formula: (= v_~flag2~0_1 1) InVars {} OutVars{~flag2~0=v_~flag2~0_1} AuxVars[] AssignedVars[~flag2~0] 227#[L762, L819-4, $Ultimate##0]true [340] L762-->L769: Formula: (= v_~flag1~0_1 |v_thr2Thread1of1ForFork1_~f12~0#1_1|) InVars {~flag1~0=v_~flag1~0_1} OutVars{~flag1~0=v_~flag1~0_1, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~f12~0#1] 229#[L819-4, L769, $Ultimate##0]true [2024-02-10 00:33:11,954 INFO L750 eck$LassoCheckResult]: Loop: 229#[L819-4, L769, $Ultimate##0]true [341] L769-->L767: Formula: (<= 3 |v_thr2Thread1of1ForFork1_~f12~0#1_3|) InVars {thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_3|} OutVars{thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_3|} AuxVars[] AssignedVars[] 232#[L819-4, L767, $Ultimate##0]true [344] L767-->L769: Formula: (= v_~flag1~0_3 |v_thr2Thread1of1ForFork1_~f12~0#1_7|) InVars {~flag1~0=v_~flag1~0_3} OutVars{~flag1~0=v_~flag1~0_3, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_7|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~f12~0#1] 229#[L819-4, L769, $Ultimate##0]true [2024-02-10 00:33:11,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash -477083126, now seen corresponding path program 1 times [2024-02-10 00:33:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:11,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384011725] [2024-02-10 00:33:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:11,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:11,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:11,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:11,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash 11876, now seen corresponding path program 1 times [2024-02-10 00:33:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:11,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804260730] [2024-02-10 00:33:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:11,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:12,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:12,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1084627501, now seen corresponding path program 1 times [2024-02-10 00:33:12,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:12,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943677232] [2024-02-10 00:33:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:12,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:33:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-10 00:33:12,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-10 00:33:12,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943677232] [2024-02-10 00:33:12,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943677232] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-10 00:33:12,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-10 00:33:12,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-10 00:33:12,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368691659] [2024-02-10 00:33:12,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-10 00:33:12,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-10 00:33:12,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-10 00:33:12,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-10 00:33:12,279 INFO L175 Difference]: Start difference. First operand has 111 places, 117 transitions, 350 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:12,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 117 transitions, 350 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:12,288 INFO L120 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2024-02-10 00:33:12,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-10 00:33:12,395 INFO L124 PetriNetUnfolderBase]: 192/898 cut-off events. [2024-02-10 00:33:12,395 INFO L125 PetriNetUnfolderBase]: For 110/123 co-relation queries the response was YES. [2024-02-10 00:33:12,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 898 events. 192/898 cut-off events. For 110/123 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 6213 event pairs, 46 based on Foata normal form. 30/895 useless extension candidates. Maximal degree in co-relation 1333. Up to 212 conditions per place. [2024-02-10 00:33:12,416 INFO L140 encePairwiseOnDemand]: 106/123 looper letters, 31 selfloop transitions, 17 changer transitions 0/144 dead transitions. [2024-02-10 00:33:12,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 144 transitions, 503 flow [2024-02-10 00:33:12,419 INFO L231 Difference]: Finished difference. Result has 118 places, 131 transitions, 482 flow [2024-02-10 00:33:12,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-10 00:33:12,420 INFO L428 stractBuchiCegarLoop]: Abstraction has has 118 places, 131 transitions, 482 flow [2024-02-10 00:33:12,420 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-10 00:33:12,420 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 118 places, 131 transitions, 482 flow [2024-02-10 00:33:12,425 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-10 00:33:12,425 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2024-02-10 00:33:12,425 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-02-10 00:33:12,425 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-10 00:33:12,428 INFO L748 eck$LassoCheckResult]: Stem: 110#[$Ultimate##0]true [243] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_9| 0) 0) InVars {#valid=|v_#valid_9|} OutVars{#valid=|v_#valid_9|} AuxVars[] AssignedVars[] 112#[L-1]true [249] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 114#[L12]true [286] L12-->L12-1: Formula: (and (= (select |v_#valid_10| 1) 1) (= 2 (select |v_#length_5| 1))) InVars {#length=|v_#length_5|, #valid=|v_#valid_10|} OutVars{#length=|v_#length_5|, #valid=|v_#valid_10|} AuxVars[] AssignedVars[] 116#[L12-1]true [304] L12-1-->L12-2: Formula: (= (select (select |v_#memory_int_7| 1) 0) 48) InVars {#memory_int=|v_#memory_int_7|} OutVars{#memory_int=|v_#memory_int_7|} AuxVars[] AssignedVars[] 118#[L12-2]true [303] L12-2-->L12-3: Formula: (= (select (select |v_#memory_int_8| 1) 1) 0) InVars {#memory_int=|v_#memory_int_8|} OutVars{#memory_int=|v_#memory_int_8|} AuxVars[] AssignedVars[] 120#[L12-3]true [320] L12-3-->L12-4: Formula: (and (= (select |v_#length_6| 2) 12) (= (select |v_#valid_11| 2) 1)) InVars {#length=|v_#length_6|, #valid=|v_#valid_11|} OutVars{#length=|v_#length_6|, #valid=|v_#valid_11|} AuxVars[] AssignedVars[] 122#[L12-4]true [314] L12-4-->L700: Formula: (= v_~flag1~0_15 0) InVars {} OutVars{~flag1~0=v_~flag1~0_15} AuxVars[] AssignedVars[~flag1~0] 124#[L700]true [270] L700-->L701: Formula: (= v_~flag2~0_15 0) InVars {} OutVars{~flag2~0=v_~flag2~0_15} AuxVars[] AssignedVars[~flag2~0] 126#[L701]true [323] L701-->L-1-1: Formula: (= v_~x~0_7 0) InVars {} OutVars{~x~0=v_~x~0_7} AuxVars[] AssignedVars[~x~0] 128#[L-1-1]true [328] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 130#[L-1-2]true [329] L-1-2-->L817: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_5|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#1_4|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_6|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_3|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_4|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_6|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_5|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_6|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 132#[L817]true [268] L817-->L817-1: Formula: (and (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_7| 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_7| 0) (= (store |v_#length_8| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 4) |v_#length_7|) (= |v_#valid_12| (store |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 1)) (= (select |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_7|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_8|, #valid=|v_#valid_13|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_7|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_7|, #valid=|v_#valid_12|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 134#[L817-1]true [283] L817-1-->L817-2: Formula: (and (= |v_#length_9| (store |v_#length_10| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 4)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_7|) (= 0 (select |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7|)) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_7|) (= (store |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 1) |v_#valid_14|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_7| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_10|, #valid=|v_#valid_15|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_9|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_7|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_7|, #valid=|v_#valid_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 136#[L817-2]true [221] L817-2-->L818: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_1| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 138#[L818]true [287] L818-->L818-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 140#[L818-1]true [291] L818-1-->L818-2: Formula: (and (= (store |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1| (store (select |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) |v_ULTIMATE.start_main_~#t1~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre4#1_2|)) |v_#memory_int_1|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_1| 4) (select |v_#length_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_1|) (= (select |v_#valid_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) 1)) InVars {#valid=|v_#valid_1|, #memory_int=|v_#memory_int_2|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} OutVars{#valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} AuxVars[] AssignedVars[#memory_int] 142#[L818-2]true [420] L818-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork0_thidvar0_2) (= |v_thr1Thread1of1ForFork0_#in~_#1.base_4| 0) (= v_thr1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_4|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_4|, thr1Thread1of1ForFork0_#res#1.offset=|v_thr1Thread1of1ForFork0_#res#1.offset_4|, thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_40|, thr1Thread1of1ForFork0_thidvar0=v_thr1Thread1of1ForFork0_thidvar0_2, thr1Thread1of1ForFork0_thidvar1=v_thr1Thread1of1ForFork0_thidvar1_2, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr1Thread1of1ForFork0_#res#1.base=|v_thr1Thread1of1ForFork0_#res#1.base_4|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_4|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_4|, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_#in~_#1.base, thr1Thread1of1ForFork0_#res#1.offset, thr1Thread1of1ForFork0_~f21~0#1, thr1Thread1of1ForFork0_thidvar0, thr1Thread1of1ForFork0_thidvar1, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork0_#res#1.base, thr1Thread1of1ForFork0_~_#1.base, thr1Thread1of1ForFork0_#in~_#1.offset, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base] 144#[L818-3, $Ultimate##0]true [378] $Ultimate##0-->L703: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.base_1| |v_thr1Thread1of1ForFork0_~_#1.base_1|) (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_1| |v_thr1Thread1of1ForFork0_~_#1.offset_1|)) InVars {thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_1|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_~_#1.base] 146#[L703, L818-3]true [317] L818-3-->L818-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 269#[L703, L818-4]true [379] L703-->L705: Formula: (= v_~flag1~0_11 1) InVars {} OutVars{~flag1~0=v_~flag1~0_11} AuxVars[] AssignedVars[~flag1~0] 271#[L818-4, L705]true [248] L818-4-->L819: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 273#[L819, L705]true [258] L819-->L819-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_1| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 275#[L819-1, L705]true [227] L819-1-->L819-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 277#[L819-2, L705]true [306] L819-2-->L819-3: Formula: (and (= (select |v_#valid_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) 1) (<= (+ 4 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (select |v_#length_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (= |v_#memory_int_3| (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) |v_ULTIMATE.start_main_~#t2~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre6#1_2|)))) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_4|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_3|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[#memory_int] 279#[L819-3, L705]true [423] L819-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork1_thidvar2_2 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork1_thidvar0_2) (= |v_thr2Thread1of1ForFork1_#in~_#1.base_4| 0) (= v_thr2Thread1of1ForFork1_thidvar1_2 0) (= |v_thr2Thread1of1ForFork1_#in~_#1.offset_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork1_#res#1.offset=|v_thr2Thread1of1ForFork1_#res#1.offset_4|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_40|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_4|, thr2Thread1of1ForFork1_thidvar0=v_thr2Thread1of1ForFork1_thidvar0_2, thr2Thread1of1ForFork1_thidvar1=v_thr2Thread1of1ForFork1_thidvar1_2, thr2Thread1of1ForFork1_thidvar2=v_thr2Thread1of1ForFork1_thidvar2_2, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_4|, thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork1_#res#1.base=|v_thr2Thread1of1ForFork1_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_thidvar0, thr2Thread1of1ForFork1_thidvar1, thr2Thread1of1ForFork1_thidvar2, thr2Thread1of1ForFork1_#res#1.offset, thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork1_#in~_#1.base, thr2Thread1of1ForFork1_~_#1.offset, thr2Thread1of1ForFork1_~f12~0#1, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork1_#res#1.base, thr2Thread1of1ForFork1_#in~_#1.offset] 281#[L819-4, $Ultimate##0, L705]true [338] $Ultimate##0-->L760: Formula: (and (= |v_thr2Thread1of1ForFork1_~_#1.base_1| |v_thr2Thread1of1ForFork1_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork1_~_#1.offset_1| |v_thr2Thread1of1ForFork1_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_1|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_1|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_~_#1.offset] 283#[L819-4, L705, L760]true [339] L760-->L762: Formula: (= v_~flag2~0_1 1) InVars {} OutVars{~flag2~0=v_~flag2~0_1} AuxVars[] AssignedVars[~flag2~0] 285#[L819-4, L762, L705]true [380] L705-->L712: Formula: (= |v_thr1Thread1of1ForFork0_~f21~0#1_1| v_~flag2~0_8) InVars {~flag2~0=v_~flag2~0_8} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_1|, ~flag2~0=v_~flag2~0_8} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~f21~0#1] 287#[L819-4, L762, L712]true [2024-02-10 00:33:12,428 INFO L750 eck$LassoCheckResult]: Loop: 287#[L819-4, L762, L712]true [381] L712-->L710: Formula: (<= 3 |v_thr1Thread1of1ForFork0_~f21~0#1_3|) InVars {thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_3|} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_3|} AuxVars[] AssignedVars[] 290#[L819-4, L762, L710]true [384] L710-->L712: Formula: (= |v_thr1Thread1of1ForFork0_~f21~0#1_7| v_~flag2~0_10) InVars {~flag2~0=v_~flag2~0_10} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_7|, ~flag2~0=v_~flag2~0_10} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~f21~0#1] 287#[L819-4, L762, L712]true [2024-02-10 00:33:12,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:12,430 INFO L85 PathProgramCache]: Analyzing trace with hash -243034419, now seen corresponding path program 1 times [2024-02-10 00:33:12,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:12,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885060773] [2024-02-10 00:33:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:12,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:12,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash 13156, now seen corresponding path program 2 times [2024-02-10 00:33:12,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:12,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662443632] [2024-02-10 00:33:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:12,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1627830480, now seen corresponding path program 1 times [2024-02-10 00:33:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:12,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426167948] [2024-02-10 00:33:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:12,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:33:12,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-10 00:33:12,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-10 00:33:12,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426167948] [2024-02-10 00:33:12,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426167948] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-10 00:33:12,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-10 00:33:12,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-10 00:33:12,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196824213] [2024-02-10 00:33:12,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-10 00:33:12,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-10 00:33:12,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-10 00:33:12,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-10 00:33:12,781 INFO L175 Difference]: Start difference. First operand has 118 places, 131 transitions, 482 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:12,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 131 transitions, 482 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:12,783 INFO L120 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 123 [2024-02-10 00:33:12,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-10 00:33:12,903 INFO L124 PetriNetUnfolderBase]: 242/1121 cut-off events. [2024-02-10 00:33:12,903 INFO L125 PetriNetUnfolderBase]: For 594/648 co-relation queries the response was YES. [2024-02-10 00:33:12,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 1121 events. 242/1121 cut-off events. For 594/648 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8365 event pairs, 42 based on Foata normal form. 32/1100 useless extension candidates. Maximal degree in co-relation 2154. Up to 270 conditions per place. [2024-02-10 00:33:12,920 INFO L140 encePairwiseOnDemand]: 109/123 looper letters, 40 selfloop transitions, 17 changer transitions 0/152 dead transitions. [2024-02-10 00:33:12,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 152 transitions, 694 flow [2024-02-10 00:33:12,923 INFO L231 Difference]: Finished difference. Result has 126 places, 144 transitions, 659 flow [2024-02-10 00:33:12,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-10 00:33:12,924 INFO L428 stractBuchiCegarLoop]: Abstraction has has 126 places, 144 transitions, 659 flow [2024-02-10 00:33:12,924 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-02-10 00:33:12,924 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 places, 144 transitions, 659 flow [2024-02-10 00:33:12,930 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-10 00:33:12,930 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2024-02-10 00:33:12,930 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-02-10 00:33:12,930 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-10 00:33:12,932 INFO L748 eck$LassoCheckResult]: Stem: 110#[$Ultimate##0]true [243] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_9| 0) 0) InVars {#valid=|v_#valid_9|} OutVars{#valid=|v_#valid_9|} AuxVars[] AssignedVars[] 112#[L-1]true [249] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 114#[L12]true [286] L12-->L12-1: Formula: (and (= (select |v_#valid_10| 1) 1) (= 2 (select |v_#length_5| 1))) InVars {#length=|v_#length_5|, #valid=|v_#valid_10|} OutVars{#length=|v_#length_5|, #valid=|v_#valid_10|} AuxVars[] AssignedVars[] 116#[L12-1]true [304] L12-1-->L12-2: Formula: (= (select (select |v_#memory_int_7| 1) 0) 48) InVars {#memory_int=|v_#memory_int_7|} OutVars{#memory_int=|v_#memory_int_7|} AuxVars[] AssignedVars[] 118#[L12-2]true [303] L12-2-->L12-3: Formula: (= (select (select |v_#memory_int_8| 1) 1) 0) InVars {#memory_int=|v_#memory_int_8|} OutVars{#memory_int=|v_#memory_int_8|} AuxVars[] AssignedVars[] 120#[L12-3]true [320] L12-3-->L12-4: Formula: (and (= (select |v_#length_6| 2) 12) (= (select |v_#valid_11| 2) 1)) InVars {#length=|v_#length_6|, #valid=|v_#valid_11|} OutVars{#length=|v_#length_6|, #valid=|v_#valid_11|} AuxVars[] AssignedVars[] 122#[L12-4]true [314] L12-4-->L700: Formula: (= v_~flag1~0_15 0) InVars {} OutVars{~flag1~0=v_~flag1~0_15} AuxVars[] AssignedVars[~flag1~0] 124#[L700]true [270] L700-->L701: Formula: (= v_~flag2~0_15 0) InVars {} OutVars{~flag2~0=v_~flag2~0_15} AuxVars[] AssignedVars[~flag2~0] 126#[L701]true [323] L701-->L-1-1: Formula: (= v_~x~0_7 0) InVars {} OutVars{~x~0=v_~x~0_7} AuxVars[] AssignedVars[~x~0] 128#[L-1-1]true [328] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 130#[L-1-2]true [329] L-1-2-->L817: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_5|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#1_4|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_6|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_3|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_4|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_6|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_5|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_6|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 132#[L817]true [268] L817-->L817-1: Formula: (and (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_7| 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_7| 0) (= (store |v_#length_8| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 4) |v_#length_7|) (= |v_#valid_12| (store |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 1)) (= (select |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_7|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_8|, #valid=|v_#valid_13|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_7|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_7|, #valid=|v_#valid_12|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 134#[L817-1]true [283] L817-1-->L817-2: Formula: (and (= |v_#length_9| (store |v_#length_10| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 4)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_7|) (= 0 (select |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7|)) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_7|) (= (store |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 1) |v_#valid_14|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_7| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_10|, #valid=|v_#valid_15|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_9|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_7|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_7|, #valid=|v_#valid_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 136#[L817-2]true [221] L817-2-->L818: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_1| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 138#[L818]true [287] L818-->L818-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 140#[L818-1]true [291] L818-1-->L818-2: Formula: (and (= (store |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1| (store (select |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) |v_ULTIMATE.start_main_~#t1~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre4#1_2|)) |v_#memory_int_1|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_1| 4) (select |v_#length_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_1|) (= (select |v_#valid_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) 1)) InVars {#valid=|v_#valid_1|, #memory_int=|v_#memory_int_2|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} OutVars{#valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} AuxVars[] AssignedVars[#memory_int] 142#[L818-2]true [420] L818-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork0_thidvar0_2) (= |v_thr1Thread1of1ForFork0_#in~_#1.base_4| 0) (= v_thr1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_4|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_4|, thr1Thread1of1ForFork0_#res#1.offset=|v_thr1Thread1of1ForFork0_#res#1.offset_4|, thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_40|, thr1Thread1of1ForFork0_thidvar0=v_thr1Thread1of1ForFork0_thidvar0_2, thr1Thread1of1ForFork0_thidvar1=v_thr1Thread1of1ForFork0_thidvar1_2, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr1Thread1of1ForFork0_#res#1.base=|v_thr1Thread1of1ForFork0_#res#1.base_4|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_4|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_4|, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_#in~_#1.base, thr1Thread1of1ForFork0_#res#1.offset, thr1Thread1of1ForFork0_~f21~0#1, thr1Thread1of1ForFork0_thidvar0, thr1Thread1of1ForFork0_thidvar1, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork0_#res#1.base, thr1Thread1of1ForFork0_~_#1.base, thr1Thread1of1ForFork0_#in~_#1.offset, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base] 144#[L818-3, $Ultimate##0]true [378] $Ultimate##0-->L703: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.base_1| |v_thr1Thread1of1ForFork0_~_#1.base_1|) (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_1| |v_thr1Thread1of1ForFork0_~_#1.offset_1|)) InVars {thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_1|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_~_#1.base] 146#[L703, L818-3]true [317] L818-3-->L818-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 269#[L703, L818-4]true [379] L703-->L705: Formula: (= v_~flag1~0_11 1) InVars {} OutVars{~flag1~0=v_~flag1~0_11} AuxVars[] AssignedVars[~flag1~0] 271#[L818-4, L705]true [248] L818-4-->L819: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 273#[L819, L705]true [258] L819-->L819-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_1| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 275#[L819-1, L705]true [227] L819-1-->L819-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 277#[L819-2, L705]true [306] L819-2-->L819-3: Formula: (and (= (select |v_#valid_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) 1) (<= (+ 4 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (select |v_#length_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (= |v_#memory_int_3| (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) |v_ULTIMATE.start_main_~#t2~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre6#1_2|)))) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_4|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_3|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[#memory_int] 279#[L819-3, L705]true [423] L819-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork1_thidvar2_2 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork1_thidvar0_2) (= |v_thr2Thread1of1ForFork1_#in~_#1.base_4| 0) (= v_thr2Thread1of1ForFork1_thidvar1_2 0) (= |v_thr2Thread1of1ForFork1_#in~_#1.offset_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork1_#res#1.offset=|v_thr2Thread1of1ForFork1_#res#1.offset_4|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_40|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_4|, thr2Thread1of1ForFork1_thidvar0=v_thr2Thread1of1ForFork1_thidvar0_2, thr2Thread1of1ForFork1_thidvar1=v_thr2Thread1of1ForFork1_thidvar1_2, thr2Thread1of1ForFork1_thidvar2=v_thr2Thread1of1ForFork1_thidvar2_2, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_4|, thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork1_#res#1.base=|v_thr2Thread1of1ForFork1_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_thidvar0, thr2Thread1of1ForFork1_thidvar1, thr2Thread1of1ForFork1_thidvar2, thr2Thread1of1ForFork1_#res#1.offset, thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork1_#in~_#1.base, thr2Thread1of1ForFork1_~_#1.offset, thr2Thread1of1ForFork1_~f12~0#1, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork1_#res#1.base, thr2Thread1of1ForFork1_#in~_#1.offset] 281#[L819-4, $Ultimate##0, L705]true [338] $Ultimate##0-->L760: Formula: (and (= |v_thr2Thread1of1ForFork1_~_#1.base_1| |v_thr2Thread1of1ForFork1_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork1_~_#1.offset_1| |v_thr2Thread1of1ForFork1_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_1|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_1|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_~_#1.offset] 283#[L819-4, L705, L760]true [339] L760-->L762: Formula: (= v_~flag2~0_1 1) InVars {} OutVars{~flag2~0=v_~flag2~0_1} AuxVars[] AssignedVars[~flag2~0] 285#[L819-4, L762, L705]true [340] L762-->L769: Formula: (= v_~flag1~0_1 |v_thr2Thread1of1ForFork1_~f12~0#1_1|) InVars {~flag1~0=v_~flag1~0_1} OutVars{~flag1~0=v_~flag1~0_1, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~f12~0#1] 337#[L819-4, L769, L705]true [2024-02-10 00:33:12,932 INFO L750 eck$LassoCheckResult]: Loop: 337#[L819-4, L769, L705]true [341] L769-->L767: Formula: (<= 3 |v_thr2Thread1of1ForFork1_~f12~0#1_3|) InVars {thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_3|} OutVars{thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_3|} AuxVars[] AssignedVars[] 340#[L819-4, L767, L705]true [344] L767-->L769: Formula: (= v_~flag1~0_3 |v_thr2Thread1of1ForFork1_~f12~0#1_7|) InVars {~flag1~0=v_~flag1~0_3} OutVars{~flag1~0=v_~flag1~0_3, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_7|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~f12~0#1] 337#[L819-4, L769, L705]true [2024-02-10 00:33:12,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:12,933 INFO L85 PathProgramCache]: Analyzing trace with hash -243034459, now seen corresponding path program 1 times [2024-02-10 00:33:12,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:12,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590963046] [2024-02-10 00:33:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:12,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:12,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash 11876, now seen corresponding path program 2 times [2024-02-10 00:33:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200409320] [2024-02-10 00:33:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:12,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:12,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:12,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1627870200, now seen corresponding path program 1 times [2024-02-10 00:33:12,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:12,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381001895] [2024-02-10 00:33:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:12,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-10 00:33:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-10 00:33:13,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-10 00:33:13,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381001895] [2024-02-10 00:33:13,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381001895] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-10 00:33:13,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-10 00:33:13,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-10 00:33:13,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974624296] [2024-02-10 00:33:13,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-10 00:33:13,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-10 00:33:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-10 00:33:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-10 00:33:13,286 INFO L175 Difference]: Start difference. First operand has 126 places, 144 transitions, 659 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:13,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 144 transitions, 659 flow. Second operand 5 states and 615 transitions. [2024-02-10 00:33:13,287 INFO L120 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 123 [2024-02-10 00:33:13,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-10 00:33:13,439 INFO L124 PetriNetUnfolderBase]: 296/1373 cut-off events. [2024-02-10 00:33:13,439 INFO L125 PetriNetUnfolderBase]: For 1083/1138 co-relation queries the response was YES. [2024-02-10 00:33:13,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3121 conditions, 1373 events. 296/1373 cut-off events. For 1083/1138 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 10761 event pairs, 45 based on Foata normal form. 41/1363 useless extension candidates. Maximal degree in co-relation 2932. Up to 359 conditions per place. [2024-02-10 00:33:13,468 INFO L140 encePairwiseOnDemand]: 109/123 looper letters, 41 selfloop transitions, 17 changer transitions 0/166 dead transitions. [2024-02-10 00:33:13,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 166 transitions, 878 flow [2024-02-10 00:33:13,472 INFO L231 Difference]: Finished difference. Result has 134 places, 157 transitions, 836 flow [2024-02-10 00:33:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-10 00:33:13,477 INFO L428 stractBuchiCegarLoop]: Abstraction has has 134 places, 157 transitions, 836 flow [2024-02-10 00:33:13,478 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-02-10 00:33:13,479 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 134 places, 157 transitions, 836 flow [2024-02-10 00:33:13,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-10 00:33:13,494 INFO L124 PetriNetUnfolderBase]: 6/84 cut-off events. [2024-02-10 00:33:13,494 INFO L125 PetriNetUnfolderBase]: For 167/171 co-relation queries the response was YES. [2024-02-10 00:33:13,494 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-10 00:33:13,499 INFO L748 eck$LassoCheckResult]: Stem: 110#[$Ultimate##0]true [243] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_9| 0) 0) InVars {#valid=|v_#valid_9|} OutVars{#valid=|v_#valid_9|} AuxVars[] AssignedVars[] 112#[L-1]true [249] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 114#[L12]true [286] L12-->L12-1: Formula: (and (= (select |v_#valid_10| 1) 1) (= 2 (select |v_#length_5| 1))) InVars {#length=|v_#length_5|, #valid=|v_#valid_10|} OutVars{#length=|v_#length_5|, #valid=|v_#valid_10|} AuxVars[] AssignedVars[] 116#[L12-1]true [304] L12-1-->L12-2: Formula: (= (select (select |v_#memory_int_7| 1) 0) 48) InVars {#memory_int=|v_#memory_int_7|} OutVars{#memory_int=|v_#memory_int_7|} AuxVars[] AssignedVars[] 118#[L12-2]true [303] L12-2-->L12-3: Formula: (= (select (select |v_#memory_int_8| 1) 1) 0) InVars {#memory_int=|v_#memory_int_8|} OutVars{#memory_int=|v_#memory_int_8|} AuxVars[] AssignedVars[] 120#[L12-3]true [320] L12-3-->L12-4: Formula: (and (= (select |v_#length_6| 2) 12) (= (select |v_#valid_11| 2) 1)) InVars {#length=|v_#length_6|, #valid=|v_#valid_11|} OutVars{#length=|v_#length_6|, #valid=|v_#valid_11|} AuxVars[] AssignedVars[] 122#[L12-4]true [314] L12-4-->L700: Formula: (= v_~flag1~0_15 0) InVars {} OutVars{~flag1~0=v_~flag1~0_15} AuxVars[] AssignedVars[~flag1~0] 124#[L700]true [270] L700-->L701: Formula: (= v_~flag2~0_15 0) InVars {} OutVars{~flag2~0=v_~flag2~0_15} AuxVars[] AssignedVars[~flag2~0] 126#[L701]true [323] L701-->L-1-1: Formula: (= v_~x~0_7 0) InVars {} OutVars{~x~0=v_~x~0_7} AuxVars[] AssignedVars[~x~0] 128#[L-1-1]true [328] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 130#[L-1-2]true [329] L-1-2-->L817: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_5|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#1_4|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_6|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_3|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_4|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_6|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_5|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_6|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 132#[L817]true [268] L817-->L817-1: Formula: (and (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_7| 0)) (= |v_ULTIMATE.start_main_~#t1~0#1.offset_7| 0) (= (store |v_#length_8| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 4) |v_#length_7|) (= |v_#valid_12| (store |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7| 1)) (= (select |v_#valid_13| |v_ULTIMATE.start_main_~#t1~0#1.base_7|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_7|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_8|, #valid=|v_#valid_13|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_7|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_7|, #valid=|v_#valid_12|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 134#[L817-1]true [283] L817-1-->L817-2: Formula: (and (= |v_#length_9| (store |v_#length_10| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 4)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_7|) (= 0 (select |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7|)) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_7|) (= (store |v_#valid_15| |v_ULTIMATE.start_main_~#t2~0#1.base_7| 1) |v_#valid_14|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_7| 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_10|, #valid=|v_#valid_15|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_9|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_7|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_7|, #valid=|v_#valid_14|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 136#[L817-2]true [221] L817-2-->L818: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_1| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 138#[L818]true [287] L818-->L818-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 140#[L818-1]true [291] L818-1-->L818-2: Formula: (and (= (store |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1| (store (select |v_#memory_int_2| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) |v_ULTIMATE.start_main_~#t1~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre4#1_2|)) |v_#memory_int_1|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_1| 4) (select |v_#length_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_1|) (= (select |v_#valid_1| |v_ULTIMATE.start_main_~#t1~0#1.base_1|) 1)) InVars {#valid=|v_#valid_1|, #memory_int=|v_#memory_int_2|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} OutVars{#valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #length=|v_#length_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|} AuxVars[] AssignedVars[#memory_int] 142#[L818-2]true [420] L818-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork0_thidvar0_2) (= |v_thr1Thread1of1ForFork0_#in~_#1.base_4| 0) (= v_thr1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_4|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_4|, thr1Thread1of1ForFork0_#res#1.offset=|v_thr1Thread1of1ForFork0_#res#1.offset_4|, thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_40|, thr1Thread1of1ForFork0_thidvar0=v_thr1Thread1of1ForFork0_thidvar0_2, thr1Thread1of1ForFork0_thidvar1=v_thr1Thread1of1ForFork0_thidvar1_2, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr1Thread1of1ForFork0_#res#1.base=|v_thr1Thread1of1ForFork0_#res#1.base_4|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_4|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_4|, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_#in~_#1.base, thr1Thread1of1ForFork0_#res#1.offset, thr1Thread1of1ForFork0_~f21~0#1, thr1Thread1of1ForFork0_thidvar0, thr1Thread1of1ForFork0_thidvar1, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork0_#res#1.base, thr1Thread1of1ForFork0_~_#1.base, thr1Thread1of1ForFork0_#in~_#1.offset, thr1Thread1of1ForFork0_reach_error_#t~nondet0#1.base] 144#[L818-3, $Ultimate##0]true [378] $Ultimate##0-->L703: Formula: (and (= |v_thr1Thread1of1ForFork0_#in~_#1.base_1| |v_thr1Thread1of1ForFork0_~_#1.base_1|) (= |v_thr1Thread1of1ForFork0_#in~_#1.offset_1| |v_thr1Thread1of1ForFork0_~_#1.offset_1|)) InVars {thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr1Thread1of1ForFork0_~_#1.offset=|v_thr1Thread1of1ForFork0_~_#1.offset_1|, thr1Thread1of1ForFork0_#in~_#1.base=|v_thr1Thread1of1ForFork0_#in~_#1.base_1|, thr1Thread1of1ForFork0_~_#1.base=|v_thr1Thread1of1ForFork0_~_#1.base_1|, thr1Thread1of1ForFork0_#in~_#1.offset=|v_thr1Thread1of1ForFork0_#in~_#1.offset_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~_#1.offset, thr1Thread1of1ForFork0_~_#1.base] 146#[L703, L818-3]true [317] L818-3-->L818-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 269#[L703, L818-4]true [379] L703-->L705: Formula: (= v_~flag1~0_11 1) InVars {} OutVars{~flag1~0=v_~flag1~0_11} AuxVars[] AssignedVars[~flag1~0] 271#[L818-4, L705]true [248] L818-4-->L819: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 273#[L819, L705]true [258] L819-->L819-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_1| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 275#[L819-1, L705]true [227] L819-1-->L819-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 277#[L819-2, L705]true [306] L819-2-->L819-3: Formula: (and (= (select |v_#valid_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) 1) (<= (+ 4 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (select |v_#length_2| |v_ULTIMATE.start_main_~#t2~0#1.base_1|)) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_1|) (= |v_#memory_int_3| (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t2~0#1.base_1|) |v_ULTIMATE.start_main_~#t2~0#1.offset_1| |v_ULTIMATE.start_main_#t~pre6#1_2|)))) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_4|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, #valid=|v_#valid_2|, #memory_int=|v_#memory_int_3|, #length=|v_#length_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[#memory_int] 279#[L819-3, L705]true [423] L819-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork1_thidvar2_2 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork1_thidvar0_2) (= |v_thr2Thread1of1ForFork1_#in~_#1.base_4| 0) (= v_thr2Thread1of1ForFork1_thidvar1_2 0) (= |v_thr2Thread1of1ForFork1_#in~_#1.offset_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork1_#res#1.offset=|v_thr2Thread1of1ForFork1_#res#1.offset_4|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_40|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_4|, thr2Thread1of1ForFork1_thidvar0=v_thr2Thread1of1ForFork1_thidvar0_2, thr2Thread1of1ForFork1_thidvar1=v_thr2Thread1of1ForFork1_thidvar1_2, thr2Thread1of1ForFork1_thidvar2=v_thr2Thread1of1ForFork1_thidvar2_2, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_4|, thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_4|, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork1_#res#1.base=|v_thr2Thread1of1ForFork1_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_thidvar0, thr2Thread1of1ForFork1_thidvar1, thr2Thread1of1ForFork1_thidvar2, thr2Thread1of1ForFork1_#res#1.offset, thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork1_#in~_#1.base, thr2Thread1of1ForFork1_~_#1.offset, thr2Thread1of1ForFork1_~f12~0#1, thr2Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork1_#res#1.base, thr2Thread1of1ForFork1_#in~_#1.offset] 281#[L819-4, $Ultimate##0, L705]true [338] $Ultimate##0-->L760: Formula: (and (= |v_thr2Thread1of1ForFork1_~_#1.base_1| |v_thr2Thread1of1ForFork1_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork1_~_#1.offset_1| |v_thr2Thread1of1ForFork1_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork1_~_#1.offset=|v_thr2Thread1of1ForFork1_~_#1.offset_1|, thr2Thread1of1ForFork1_~_#1.base=|v_thr2Thread1of1ForFork1_~_#1.base_1|, thr2Thread1of1ForFork1_#in~_#1.offset=|v_thr2Thread1of1ForFork1_#in~_#1.offset_1|, thr2Thread1of1ForFork1_#in~_#1.base=|v_thr2Thread1of1ForFork1_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~_#1.base, thr2Thread1of1ForFork1_~_#1.offset] 283#[L819-4, L705, L760]true [339] L760-->L762: Formula: (= v_~flag2~0_1 1) InVars {} OutVars{~flag2~0=v_~flag2~0_1} AuxVars[] AssignedVars[~flag2~0] 285#[L819-4, L762, L705]true [340] L762-->L769: Formula: (= v_~flag1~0_1 |v_thr2Thread1of1ForFork1_~f12~0#1_1|) InVars {~flag1~0=v_~flag1~0_1} OutVars{~flag1~0=v_~flag1~0_1, thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_~f12~0#1] 337#[L819-4, L769, L705]true [342] L769-->L766-1: Formula: (< |v_thr2Thread1of1ForFork1_~f12~0#1_5| 3) InVars {thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_5|} OutVars{thr2Thread1of1ForFork1_~f12~0#1=|v_thr2Thread1of1ForFork1_~f12~0#1_5|} AuxVars[] AssignedVars[] 388#[L819-4, L766-1, L705]true [345] L766-1-->L773: Formula: (= v_~flag2~0_2 3) InVars {} OutVars{~flag2~0=v_~flag2~0_2} AuxVars[] AssignedVars[~flag2~0] 390#[L819-4, L773, L705]true [380] L705-->L712: Formula: (= |v_thr1Thread1of1ForFork0_~f21~0#1_1| v_~flag2~0_8) InVars {~flag2~0=v_~flag2~0_8} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_1|, ~flag2~0=v_~flag2~0_8} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~f21~0#1] 392#[L819-4, L773, L712]true [2024-02-10 00:33:13,499 INFO L750 eck$LassoCheckResult]: Loop: 392#[L819-4, L773, L712]true [381] L712-->L710: Formula: (<= 3 |v_thr1Thread1of1ForFork0_~f21~0#1_3|) InVars {thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_3|} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_3|} AuxVars[] AssignedVars[] 395#[L819-4, L773, L710]true [384] L710-->L712: Formula: (= |v_thr1Thread1of1ForFork0_~f21~0#1_7| v_~flag2~0_10) InVars {~flag2~0=v_~flag2~0_10} OutVars{thr1Thread1of1ForFork0_~f21~0#1=|v_thr1Thread1of1ForFork0_~f21~0#1_7|, ~flag2~0=v_~flag2~0_10} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~f21~0#1] 392#[L819-4, L773, L712]true [2024-02-10 00:33:13,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:13,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1075632724, now seen corresponding path program 1 times [2024-02-10 00:33:13,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:13,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122040263] [2024-02-10 00:33:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:13,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:13,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:13,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:13,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash 13156, now seen corresponding path program 3 times [2024-02-10 00:33:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:13,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942227560] [2024-02-10 00:33:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:13,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:13,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:13,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:13,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-10 00:33:13,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1404058377, now seen corresponding path program 1 times [2024-02-10 00:33:13,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-10 00:33:13,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519151357] [2024-02-10 00:33:13,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-10 00:33:13,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-10 00:33:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:13,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:13,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-10 00:33:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:14,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-10 00:33:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-10 00:33:14,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.02 12:33:14 BoogieIcfgContainer [2024-02-10 00:33:14,540 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-10 00:33:14,541 INFO L158 Benchmark]: Toolchain (without parser) took 4990.00ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 257.5MB in the beginning and 284.5MB in the end (delta: -27.0MB). Peak memory consumption was 32.3MB. Max. memory is 8.0GB. [2024-02-10 00:33:14,542 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-10 00:33:14,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.95ms. Allocated memory is still 289.4MB. Free memory was 257.0MB in the beginning and 249.5MB in the end (delta: 7.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-02-10 00:33:14,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.78ms. Allocated memory is still 289.4MB. Free memory was 249.5MB in the beginning and 247.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-02-10 00:33:14,543 INFO L158 Benchmark]: Boogie Preprocessor took 26.40ms. Allocated memory is still 289.4MB. Free memory was 247.4MB in the beginning and 245.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-02-10 00:33:14,543 INFO L158 Benchmark]: RCFGBuilder took 402.45ms. Allocated memory is still 289.4MB. Free memory was 245.8MB in the beginning and 229.6MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-02-10 00:33:14,543 INFO L158 Benchmark]: BuchiAutomizer took 3872.15ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 229.6MB in the beginning and 284.5MB in the end (delta: -54.9MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2024-02-10 00:33:14,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 628.95ms. Allocated memory is still 289.4MB. Free memory was 257.0MB in the beginning and 249.5MB in the end (delta: 7.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.78ms. Allocated memory is still 289.4MB. Free memory was 249.5MB in the beginning and 247.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.40ms. Allocated memory is still 289.4MB. Free memory was 247.4MB in the beginning and 245.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 402.45ms. Allocated memory is still 289.4MB. Free memory was 245.8MB in the beginning and 229.6MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * BuchiAutomizer took 3872.15ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 229.6MB in the beginning and 284.5MB in the end (delta: -54.9MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 836 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 2.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 958 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 958 mSDsluCounter, 2766 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1400 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 532 IncrementalHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 1366 mSDtfsCounter, 532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc4 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 709]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L700] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L701] 0 int x; VAL [flag1=0, flag2=0, x=0] [L817] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, t1={7915:0}, t2={7916:0}, x=0] [L818] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={7915:0}, t2={7916:0}, x=0] [L704] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L819] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={7915:0}, t2={7916:0}, x=0] [L761] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=1, x=0] [L764] 2 int f12 = flag1; VAL [_={0:0}, _={0:0}, f12=1, flag1=1, flag2=1, x=0] [L766] COND FALSE 2 !(f12 >= 3) VAL [_={0:0}, _={0:0}, f12=1, flag1=1, flag2=1, x=0] [L772] 2 flag2 = 3 VAL [_={0:0}, _={0:0}, f12=1, flag1=1, flag2=3, x=0] [L707] 1 int f21 = flag2; VAL [_={0:0}, _={0:0}, f21=3, flag1=1, flag2=3, x=0] Loop: [L709] COND TRUE f21 >= 3 [L711] f21 = flag2 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 709]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L700] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L701] 0 int x; VAL [flag1=0, flag2=0, x=0] [L817] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, t1={7915:0}, t2={7916:0}, x=0] [L818] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={7915:0}, t2={7916:0}, x=0] [L704] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L819] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={7915:0}, t2={7916:0}, x=0] [L761] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=1, x=0] [L764] 2 int f12 = flag1; VAL [_={0:0}, _={0:0}, f12=1, flag1=1, flag2=1, x=0] [L766] COND FALSE 2 !(f12 >= 3) VAL [_={0:0}, _={0:0}, f12=1, flag1=1, flag2=1, x=0] [L772] 2 flag2 = 3 VAL [_={0:0}, _={0:0}, f12=1, flag1=1, flag2=3, x=0] [L707] 1 int f21 = flag2; VAL [_={0:0}, _={0:0}, f21=3, flag1=1, flag2=3, x=0] Loop: [L709] COND TRUE f21 >= 3 [L711] f21 = flag2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-02-10 00:33:14,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...