/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.fairness.type.for.concurrent.programs NONE -i ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.me.fairness-42053ae-m [2023-09-08 14:35:10,610 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-09-08 14:35:10,669 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-09-08 14:35:10,691 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-08 14:35:10,692 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-08 14:35:10,692 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-08 14:35:10,693 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-08 14:35:10,693 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-09-08 14:35:10,693 INFO L137 SettingsManager]: * Use SBE=true [2023-09-08 14:35:10,694 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-09-08 14:35:10,694 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-09-08 14:35:10,694 INFO L137 SettingsManager]: * Use old map elimination=false [2023-09-08 14:35:10,694 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-09-08 14:35:10,695 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-09-08 14:35:10,695 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-09-08 14:35:10,695 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-08 14:35:10,695 INFO L137 SettingsManager]: * sizeof long=4 [2023-09-08 14:35:10,696 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-08 14:35:10,696 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-08 14:35:10,696 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-09-08 14:35:10,696 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-09-08 14:35:10,700 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-09-08 14:35:10,700 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-09-08 14:35:10,701 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-09-08 14:35:10,703 INFO L137 SettingsManager]: * sizeof long double=12 [2023-09-08 14:35:10,703 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-09-08 14:35:10,704 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-09-08 14:35:10,704 INFO L137 SettingsManager]: * Use constant arrays=true [2023-09-08 14:35:10,705 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-09-08 14:35:10,705 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-08 14:35:10,706 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-08 14:35:10,706 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-08 14:35:10,706 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-08 14:35:10,706 INFO L137 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-08 14:35:10,707 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-09-08 14:35:10,707 INFO L137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Fairness type for concurrent programs -> NONE [2023-09-08 14:35:10,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-08 14:35:10,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-08 14:35:10,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-08 14:35:10,890 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-08 14:35:10,892 INFO L274 PluginConnector]: CDTParser initialized [2023-09-08 14:35:10,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-09-08 14:35:11,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-08 14:35:12,078 INFO L384 CDTParser]: Found 1 translation units. [2023-09-08 14:35:12,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-09-08 14:35:12,084 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824afd977/880e863356ee4b1a9a2f870ce6195f42/FLAGac8c2a579 [2023-09-08 14:35:12,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824afd977/880e863356ee4b1a9a2f870ce6195f42 [2023-09-08 14:35:12,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-08 14:35:12,099 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-08 14:35:12,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-08 14:35:12,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-08 14:35:12,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-08 14:35:12,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7142e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12, skipping insertion in model container [2023-09-08 14:35:12,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-08 14:35:12,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-08 14:35:12,246 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2023-09-08 14:35:12,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 14:35:12,255 INFO L203 MainTranslator]: Completed pre-run [2023-09-08 14:35:12,270 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2023-09-08 14:35:12,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 14:35:12,280 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 14:35:12,280 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 14:35:12,284 INFO L208 MainTranslator]: Completed translation [2023-09-08 14:35:12,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12 WrapperNode [2023-09-08 14:35:12,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-08 14:35:12,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-08 14:35:12,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-08 14:35:12,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-08 14:35:12,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,327 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-09-08 14:35:12,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-08 14:35:12,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-08 14:35:12,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-08 14:35:12,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-08 14:35:12,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-08 14:35:12,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-08 14:35:12,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-08 14:35:12,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-08 14:35:12,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (1/1) ... [2023-09-08 14:35:12,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:12,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:12,373 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) [2023-09-08 14:35:12,374 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 [2023-09-08 14:35:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-08 14:35:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-08 14:35:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-08 14:35:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-08 14:35:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-08 14:35:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-08 14:35:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-08 14:35:12,397 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-08 14:35:12,458 INFO L236 CfgBuilder]: Building ICFG [2023-09-08 14:35:12,459 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-08 14:35:12,583 INFO L277 CfgBuilder]: Performing block encoding [2023-09-08 14:35:12,607 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-08 14:35:12,608 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-09-08 14:35:12,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:35:12 BoogieIcfgContainer [2023-09-08 14:35:12,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-08 14:35:12,610 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-09-08 14:35:12,610 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-09-08 14:35:12,613 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-09-08 14:35:12,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-08 14:35:12,613 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.09 02:35:12" (1/3) ... [2023-09-08 14:35:12,614 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@be65769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.09 02:35:12, skipping insertion in model container [2023-09-08 14:35:12,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-08 14:35:12,614 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:35:12" (2/3) ... [2023-09-08 14:35:12,614 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@be65769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.09 02:35:12, skipping insertion in model container [2023-09-08 14:35:12,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-08 14:35:12,615 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:35:12" (3/3) ... [2023-09-08 14:35:12,616 INFO L332 chiAutomizerObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2023-09-08 14:35:12,675 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-08 14:35:12,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 79 transitions, 174 flow [2023-09-08 14:35:12,733 INFO L124 PetriNetUnfolderBase]: 6/75 cut-off events. [2023-09-08 14:35:12,733 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-09-08 14:35:12,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 75 events. 6/75 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-09-08 14:35:12,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 79 transitions, 174 flow [2023-09-08 14:35:12,739 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 75 transitions, 162 flow [2023-09-08 14:35:12,748 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-09-08 14:35:12,748 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-09-08 14:35:12,749 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-09-08 14:35:12,749 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-09-08 14:35:12,749 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-09-08 14:35:12,775 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-09-08 14:35:12,775 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-09-08 14:35:12,777 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-09-08 14:35:12,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-09-08 14:35:12,845 INFO L131 ngComponentsAnalysis]: Automaton has 45 accepting balls. 188 [2023-09-08 14:35:12,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-09-08 14:35:12,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-09-08 14:35:12,849 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-08 14:35:12,849 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-09-08 14:35:12,849 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-09-08 14:35:12,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 331 states, but on-demand construction may add more states [2023-09-08 14:35:12,860 INFO L131 ngComponentsAnalysis]: Automaton has 45 accepting balls. 188 [2023-09-08 14:35:12,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-09-08 14:35:12,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-09-08 14:35:12,860 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-08 14:35:12,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-09-08 14:35:12,864 INFO L748 eck$LassoCheckResult]: Stem: 81#[$Ultimate##0]don't care [160] $Ultimate##0-->L-1: Formula: (and (= |v_#NULL.base_1| 0) (= |v_#NULL.offset_1| 0)) InVars {} OutVars{#NULL.offset=|v_#NULL.offset_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] 84#[L-1]don't care [167] L-1-->L-1-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 86#[L-1-1]don't care [185] L-1-1-->L21: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 88#[L21]don't care [159] L21-->L21-1: Formula: (and (= (select |v_#valid_2| 1) 1) (= 2 (select |v_#length_1| 1))) InVars {#length=|v_#length_1|, #valid=|v_#valid_2|} OutVars{#length=|v_#length_1|, #valid=|v_#valid_2|} AuxVars[] AssignedVars[] 90#[L21-1]don't care [178] L21-1-->L21-2: Formula: (= 48 (select (select |v_#memory_int_1| 1) 0)) InVars {#memory_int=|v_#memory_int_1|} OutVars{#memory_int=|v_#memory_int_1|} AuxVars[] AssignedVars[] 92#[L21-2]don't care [176] L21-2-->L21-3: Formula: (= (select (select |v_#memory_int_2| 1) 1) 0) InVars {#memory_int=|v_#memory_int_2|} OutVars{#memory_int=|v_#memory_int_2|} AuxVars[] AssignedVars[] 94#[L21-3]don't care [147] L21-3-->L21-4: Formula: (and (= 34 (select |v_#length_2| 2)) (= (select |v_#valid_3| 2) 1)) InVars {#length=|v_#length_2|, #valid=|v_#valid_3|} OutVars{#length=|v_#length_2|, #valid=|v_#valid_3|} AuxVars[] AssignedVars[] 96#[L21-4]don't care [195] L21-4-->L38: Formula: (= 0 v_~M1~0_3) InVars {} OutVars{~M1~0=v_~M1~0_3} AuxVars[] AssignedVars[~M1~0] 98#[L38]don't care [196] L38-->L38-1: Formula: (= 0 v_~M2~0_3) InVars {} OutVars{~M2~0=v_~M2~0_3} AuxVars[] AssignedVars[~M2~0] 100#[L38-1]don't care [150] L38-1-->L-1-2: Formula: (= v_~counter~0_7 0) InVars {} OutVars{~counter~0=v_~counter~0_7} AuxVars[] AssignedVars[~counter~0] 102#[L-1-2]don't care [186] L-1-2-->L-1-3: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 104#[L-1-3]don't care [191] L-1-3-->L65: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_1|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_1|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_1|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_1|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_1|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~nondet6#1, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~mem12#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 106#[L65]don't care [198] L65-->L65-1: Formula: (and (= |v_ULTIMATE.start_main_~#t1~0#1.offset_2| 0) (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) (= |v_#length_3| (store |v_#length_4| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 4)) (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_2| 0)) (= (store |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 1) |v_#valid_4|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_4|, #valid=|v_#valid_5|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_3|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_2|, #valid=|v_#valid_4|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 108#[L65-1]don't care [182] L65-1-->L65-2: Formula: (and (= |v_#length_5| (store |v_#length_6| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 4)) (= (select |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2|) 0) (= (store |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 1) |v_#valid_6|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_2| 0)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_2|) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_2|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_6|, #valid=|v_#valid_7|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_5|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_2|, #valid=|v_#valid_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 110#[L65-2]don't care [166] L65-2-->L67: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 112#[L67]don't care [181] L67-->L67-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_3| v_~M1~0_4) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|, ~M1~0=v_~M1~0_4} AuxVars[] AssignedVars[~M1~0] 114#[L67-1]don't care [154] L67-1-->L68: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 116#[L68]don't care [184] L68-->L68-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6#1] 118#[L68-1]don't care [152] L68-1-->L68-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet6#1_3| v_~M2~0_4) InVars {ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_3|} OutVars{~M2~0=v_~M2~0_4, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_3|} AuxVars[] AssignedVars[~M2~0] 120#[L68-2]don't care [136] L68-2-->L69: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6#1] 122#[L69]don't care [142] L69-->L69-1: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1| (ite (and (< 0 v_~M2~0_5) (< 0 v_~M1~0_5)) 1 0)) InVars {~M2~0=v_~M2~0_5, ~M1~0=v_~M1~0_5} OutVars{~M1~0=v_~M1~0_5, ~M2~0=v_~M2~0_5, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond#1] 124#[L69-1]don't care [187] L69-1-->L34: Formula: true InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 126#[L34]don't care [156] L34-->L35: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2| |v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 128#[L35]don't care [180] L35-->L34-1: Formula: (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_4| 0)) InVars {ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} AuxVars[] AssignedVars[] 132#[L34-1]don't care [174] L34-1-->L72: Formula: (= |v_ULTIMATE.start_main_#t~pre7#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre7#1] 134#[L72]don't care [197] L72-->L72-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 136#[L72-1]don't care [125] L72-1-->L72-2: Formula: (and (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_3|) (= (select |v_#valid_8| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) 1) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|)) (= (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) |v_ULTIMATE.start_main_~#t1~0#1.offset_3| |v_ULTIMATE.start_main_#t~pre7#1_3|)) |v_#memory_int_3|)) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} OutVars{#valid=|v_#valid_8|, #memory_int=|v_#memory_int_3|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 138#[L72-2]don't care [219] L72-2-->$Ultimate##0: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork0_thidvar0_2) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_8|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_12, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 140#[L72-3, $Ultimate##0]don't care [200] $Ultimate##0-->L41-4: Formula: (= v_thread1Thread1of1ForFork0_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_~i~0] 142#[L72-3, L41-4]don't care [2023-09-08 14:35:12,870 INFO L750 eck$LassoCheckResult]: Loop: 142#[L72-3, L41-4]don't care [201] L41-4-->L42: Formula: (< v_thread1Thread1of1ForFork0_~i~0_3 v_~M1~0_2) InVars {thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_3, ~M1~0=v_~M1~0_2} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_3, ~M1~0=v_~M1~0_2} AuxVars[] AssignedVars[] 146#[L42, L72-3]don't care [204] L42-->L44: Formula: (= (+ v_~counter~0_26 1) v_~counter~0_25) InVars {~counter~0=v_~counter~0_26} OutVars{~counter~0=v_~counter~0_25, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_1|} AuxVars[] AssignedVars[~counter~0, thread1Thread1of1ForFork0_#t~post2] 154#[L72-3, L44]don't care [206] L44-->L41-2: Formula: (= v_thread1Thread1of1ForFork0_~i~0_7 |v_thread1Thread1of1ForFork0_#t~post1_1|) InVars {thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_7} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_7, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_1|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post1] 168#[L72-3, L41-2]don't care [208] L41-2-->L41-3: Formula: (= v_thread1Thread1of1ForFork0_~i~0_9 (+ |v_thread1Thread1of1ForFork0_#t~post1_3| 1)) InVars {thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_3|} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_9, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_3|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_~i~0] 186#[L72-3, L41-3]don't care [209] L41-3-->L41-4: Formula: true InVars {} OutVars{thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_5|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post1] 142#[L72-3, L41-4]don't care [2023-09-08 14:35:12,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 14:35:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1352048082, now seen corresponding path program 1 times [2023-09-08 14:35:12,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 14:35:12,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123241866] [2023-09-08 14:35:12,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 14:35:12,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 14:35:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:12,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 14:35:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:12,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 14:35:13,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 14:35:13,001 INFO L85 PathProgramCache]: Analyzing trace with hash 220538859, now seen corresponding path program 1 times [2023-09-08 14:35:13,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 14:35:13,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391912537] [2023-09-08 14:35:13,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 14:35:13,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 14:35:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:13,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 14:35:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:13,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 14:35:13,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 14:35:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash 521345502, now seen corresponding path program 1 times [2023-09-08 14:35:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 14:35:13,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826198063] [2023-09-08 14:35:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 14:35:13,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 14:35:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:13,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 14:35:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:13,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 14:35:13,135 INFO L210 LassoAnalysis]: Preferences: [2023-09-08 14:35:13,135 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-09-08 14:35:13,135 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-09-08 14:35:13,135 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-09-08 14:35:13,135 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-09-08 14:35:13,136 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,136 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-09-08 14:35:13,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-09-08 14:35:13,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration1_Loop [2023-09-08 14:35:13,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-09-08 14:35:13,137 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-09-08 14:35:13,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-09-08 14:35:13,246 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-09-08 14:35:13,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,250 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2023-09-08 14:35:13,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-09-08 14:35:13,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,299 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-08 14:35:13,299 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.offset_1=1} Honda state: {v_rep#funAddr~thread2.offset_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-08 14:35:13,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,321 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2023-09-08 14:35:13,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-09-08 14:35:13,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,387 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2023-09-08 14:35:13,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-09-08 14:35:13,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-09-08 14:35:13,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,426 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-08 14:35:13,426 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~counter~0=0} Honda state: {~counter~0=0} Generalized eigenvectors: [{~counter~0=4}, {~counter~0=-3}, {~counter~0=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2023-09-08 14:35:13,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,444 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2023-09-08 14:35:13,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-09-08 14:35:13,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,469 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-08 14:35:13,469 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_#t~post1=0} Honda state: {thread1Thread1of1ForFork0_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-08 14:35:13,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,477 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2023-09-08 14:35:13,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-09-08 14:35:13,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,503 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-08 14:35:13,503 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.base_1=-1} Honda state: {v_rep#funAddr~thread1.base_1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-08 14:35:13,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,511 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-09-08 14:35:13,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-08 14:35:13,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_#t~post2=0} Honda state: {thread1Thread1of1ForFork0_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-08 14:35:13,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-09-08 14:35:13,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,549 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-09-08 14:35:13,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-09-08 14:35:13,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-08 14:35:13,586 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread1.offset_1=0} Honda state: {v_rep#funAddr~thread1.offset_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-08 14:35:13,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,600 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-09-08 14:35:13,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-09-08 14:35:13,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,622 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-08 14:35:13,622 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep#funAddr~thread2.base_1=-1} Honda state: {v_rep#funAddr~thread2.base_1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-08 14:35:13,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,630 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-09-08 14:35:13,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-09-08 14:35:13,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-08 14:35:13,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,660 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-09-08 14:35:13,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-09-08 14:35:13,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-09-08 14:35:13,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-08 14:35:13,773 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-09-08 14:35:13,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,777 INFO L210 LassoAnalysis]: Preferences: [2023-09-08 14:35:13,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-09-08 14:35:13,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-09-08 14:35:13,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-09-08 14:35:13,777 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-09-08 14:35:13,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,777 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-09-08 14:35:13,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-09-08 14:35:13,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration1_Loop [2023-09-08 14:35:13,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-09-08 14:35:13,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-09-08 14:35:13,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-08 14:35:13,852 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-09-08 14:35:13,855 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-09-08 14:35:13,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,857 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2023-09-08 14:35:13,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-09-08 14:35:13,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:13,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:13,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-08 14:35:13,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:13,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:13,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:13,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-08 14:35:13,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-08 14:35:13,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-08 14:35:13,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,888 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-09-08 14:35:13,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-09-08 14:35:13,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:13,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:13,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:13,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:13,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:13,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-08 14:35:13,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-08 14:35:13,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-08 14:35:13,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-09-08 14:35:13,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,914 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-09-08 14:35:13,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-09-08 14:35:13,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:13,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:13,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:13,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:13,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:13,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-08 14:35:13,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-08 14:35:13,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-08 14:35:13,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,947 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-09-08 14:35:13,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-09-08 14:35:13,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:13,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:13,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-08 14:35:13,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:13,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:13,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:13,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-08 14:35:13,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-08 14:35:13,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-08 14:35:13,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:13,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:13,983 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-09-08 14:35:13,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:13,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:13,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:13,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:13,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:14,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-08 14:35:14,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-08 14:35:14,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-09-08 14:35:14,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-08 14:35:14,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:14,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:14,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:14,037 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-09-08 14:35:14,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:14,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:14,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-08 14:35:14,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:14,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:14,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:14,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-08 14:35:14,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-08 14:35:14,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-09-08 14:35:14,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-08 14:35:14,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:14,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:14,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:14,068 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-09-08 14:35:14,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-09-08 14:35:14,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:14,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:14,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:14,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:14,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:14,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-08 14:35:14,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-08 14:35:14,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-08 14:35:14,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:14,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:14,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:14,113 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-09-08 14:35:14,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-09-08 14:35:14,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-09-08 14:35:14,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-08 14:35:14,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-08 14:35:14,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-08 14:35:14,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-08 14:35:14,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-08 14:35:14,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-08 14:35:14,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-08 14:35:14,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-09-08 14:35:14,160 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-09-08 14:35:14,160 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-09-08 14:35:14,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:35:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:35:14,199 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-09-08 14:35:14,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-09-08 14:35:14,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-09-08 14:35:14,206 INFO L513 LassoAnalysis]: Proved termination. [2023-09-08 14:35:14,206 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~M1~0, thread1Thread1of1ForFork0_~i~0) = 1*~M1~0 - 1*thread1Thread1of1ForFork0_~i~0 Supporting invariants [] [2023-09-08 14:35:14,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-09-08 14:35:14,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:14,214 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-09-08 14:35:14,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 14:35:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 14:35:14,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2023-09-08 14:35:14,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 14:35:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 14:35:14,312 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-08 14:35:14,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 14:35:14,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-09-08 14:35:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 14:35:14,421 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-09-08 14:35:14,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 331 states, but on-demand construction may add more states Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 14:35:14,569 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 331 states, but on-demand construction may add more states. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1075 states and 3062 transitions. Complement of second has 9 states. [2023-09-08 14:35:14,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-09-08 14:35:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 14:35:14,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2023-09-08 14:35:14,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 185 transitions. Stem has 29 letters. Loop has 5 letters. [2023-09-08 14:35:14,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-09-08 14:35:14,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 185 transitions. Stem has 34 letters. Loop has 5 letters. [2023-09-08 14:35:14,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-09-08 14:35:14,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 185 transitions. Stem has 29 letters. Loop has 10 letters. [2023-09-08 14:35:14,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-09-08 14:35:14,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1075 states and 3062 transitions. [2023-09-08 14:35:14,599 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 78 [2023-09-08 14:35:14,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1075 states to 392 states and 1043 transitions. [2023-09-08 14:35:14,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 214 [2023-09-08 14:35:14,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2023-09-08 14:35:14,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 392 states and 1043 transitions. [2023-09-08 14:35:14,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-09-08 14:35:14,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 392 states and 1043 transitions. [2023-09-08 14:35:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states and 1043 transitions. [2023-09-08 14:35:14,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 323. [2023-09-08 14:35:14,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 323 states have (on average 2.637770897832817) internal successors, (852), 322 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 14:35:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 852 transitions. [2023-09-08 14:35:14,657 INFO L240 hiAutomatonCegarLoop]: Abstraction has 323 states and 852 transitions. [2023-09-08 14:35:14,657 INFO L428 stractBuchiCegarLoop]: Abstraction has 323 states and 852 transitions. [2023-09-08 14:35:14,657 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-09-08 14:35:14,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 323 states and 852 transitions. [2023-09-08 14:35:14,659 INFO L131 ngComponentsAnalysis]: Automaton has 39 accepting balls. 78 [2023-09-08 14:35:14,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-09-08 14:35:14,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-09-08 14:35:14,661 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-08 14:35:14,661 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-09-08 14:35:14,662 INFO L748 eck$LassoCheckResult]: Stem: 2514#[$Ultimate##0]don't care [160] $Ultimate##0-->L-1: Formula: (and (= |v_#NULL.base_1| 0) (= |v_#NULL.offset_1| 0)) InVars {} OutVars{#NULL.offset=|v_#NULL.offset_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] 2516#[L-1]don't care [167] L-1-->L-1-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 2530#[L-1-1]don't care [185] L-1-1-->L21: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 2422#[L21]don't care [159] L21-->L21-1: Formula: (and (= (select |v_#valid_2| 1) 1) (= 2 (select |v_#length_1| 1))) InVars {#length=|v_#length_1|, #valid=|v_#valid_2|} OutVars{#length=|v_#length_1|, #valid=|v_#valid_2|} AuxVars[] AssignedVars[] 2424#[L21-1]don't care [178] L21-1-->L21-2: Formula: (= 48 (select (select |v_#memory_int_1| 1) 0)) InVars {#memory_int=|v_#memory_int_1|} OutVars{#memory_int=|v_#memory_int_1|} AuxVars[] AssignedVars[] 2540#[L21-2]don't care [176] L21-2-->L21-3: Formula: (= (select (select |v_#memory_int_2| 1) 1) 0) InVars {#memory_int=|v_#memory_int_2|} OutVars{#memory_int=|v_#memory_int_2|} AuxVars[] AssignedVars[] 2542#[L21-3]don't care [147] L21-3-->L21-4: Formula: (and (= 34 (select |v_#length_2| 2)) (= (select |v_#valid_3| 2) 1)) InVars {#length=|v_#length_2|, #valid=|v_#valid_3|} OutVars{#length=|v_#length_2|, #valid=|v_#valid_3|} AuxVars[] AssignedVars[] 2278#[L21-4]don't care [195] L21-4-->L38: Formula: (= 0 v_~M1~0_3) InVars {} OutVars{~M1~0=v_~M1~0_3} AuxVars[] AssignedVars[~M1~0] 2280#[L38]don't care [196] L38-->L38-1: Formula: (= 0 v_~M2~0_3) InVars {} OutVars{~M2~0=v_~M2~0_3} AuxVars[] AssignedVars[~M2~0] 2568#[L38-1]don't care [150] L38-1-->L-1-2: Formula: (= v_~counter~0_7 0) InVars {} OutVars{~counter~0=v_~counter~0_7} AuxVars[] AssignedVars[~counter~0] 2580#[L-1-2]don't care [186] L-1-2-->L-1-3: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 2590#[L-1-3]don't care [191] L-1-3-->L65: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_1|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_1|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_1|, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~mem12#1=|v_ULTIMATE.start_main_#t~mem12#1_1|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_1|, ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_1|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_1|, ULTIMATE.start_main_#t~mem11#1=|v_ULTIMATE.start_main_#t~mem11#1_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_1|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_#t~nondet6#1, ULTIMATE.start_main_#t~mem11#1, ULTIMATE.start_main_#t~pre7#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~mem12#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 2594#[L65]don't care [198] L65-->L65-1: Formula: (and (= |v_ULTIMATE.start_main_~#t1~0#1.offset_2| 0) (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t1~0#1.base_2|) (= |v_#length_3| (store |v_#length_4| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 4)) (not (= |v_ULTIMATE.start_main_~#t1~0#1.base_2| 0)) (= (store |v_#valid_5| |v_ULTIMATE.start_main_~#t1~0#1.base_2| 1) |v_#valid_4|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_4|, #valid=|v_#valid_5|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_3|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_2|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_2|, #valid=|v_#valid_4|} AuxVars[] AssignedVars[#valid, #length, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset] 2244#[L65-1]don't care [182] L65-1-->L65-2: Formula: (and (= |v_#length_5| (store |v_#length_6| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 4)) (= (select |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2|) 0) (= (store |v_#valid_7| |v_ULTIMATE.start_main_~#t2~0#1.base_2| 1) |v_#valid_6|) (not (= |v_ULTIMATE.start_main_~#t2~0#1.base_2| 0)) (= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_2|) (< |v_#StackHeapBarrier_3| |v_ULTIMATE.start_main_~#t2~0#1.base_2|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_6|, #valid=|v_#valid_7|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_3|, #length=|v_#length_5|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_2|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_2|, #valid=|v_#valid_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t2~0#1.base] 2246#[L65-2]don't care [166] L65-2-->L67: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 2528#[L67]don't care [181] L67-->L67-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet5#1_3| v_~M1~0_4) InVars {ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_3|, ~M1~0=v_~M1~0_4} AuxVars[] AssignedVars[~M1~0] 2410#[L67-1]don't care [154] L67-1-->L68: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet5#1=|v_ULTIMATE.start_main_#t~nondet5#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5#1] 2412#[L68]don't care [184] L68-->L68-1: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6#1] 2408#[L68-1]don't care [152] L68-1-->L68-2: Formula: (= |v_ULTIMATE.start_main_#t~nondet6#1_3| v_~M2~0_4) InVars {ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_3|} OutVars{~M2~0=v_~M2~0_4, ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_3|} AuxVars[] AssignedVars[~M2~0] 2328#[L68-2]don't care [136] L68-2-->L69: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet6#1] 2044#[L69]don't care [142] L69-->L69-1: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1| (ite (and (< 0 v_~M2~0_5) (< 0 v_~M1~0_5)) 1 0)) InVars {~M2~0=v_~M2~0_5, ~M1~0=v_~M1~0_5} OutVars{~M1~0=v_~M1~0_5, ~M2~0=v_~M2~0_5, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond#1] 2046#[L69-1]don't care [187] L69-1-->L34: Formula: true InVars {} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 2474#[L34]don't care [156] L34-->L35: Formula: (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2| |v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_2|, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond#1] 2510#[L35]don't care [180] L35-->L34-1: Formula: (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_4| 0)) InVars {ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} OutVars{ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_4|} AuxVars[] AssignedVars[] 2586#[L34-1]don't care [174] L34-1-->L72: Formula: (= |v_ULTIMATE.start_main_#t~pre7#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre7#1] 2282#[L72]don't care [197] L72-->L72-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 2284#[L72-1]don't care [125] L72-1-->L72-2: Formula: (and (<= 0 |v_ULTIMATE.start_main_~#t1~0#1.offset_3|) (= (select |v_#valid_8| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) 1) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|)) (= (store |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3| (store (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#t1~0#1.base_3|) |v_ULTIMATE.start_main_~#t1~0#1.offset_3| |v_ULTIMATE.start_main_#t~pre7#1_3|)) |v_#memory_int_3|)) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} OutVars{#valid=|v_#valid_8|, #memory_int=|v_#memory_int_3|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_3|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 2494#[L72-2]don't care [219] L72-2-->$Ultimate##0: Formula: (and (= |v_ULTIMATE.start_main_#t~pre7#1_6| v_thread1Thread1of1ForFork0_thidvar0_2) (= v_thread1Thread1of1ForFork0_thidvar1_2 0)) InVars {ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} OutVars{thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_4|, thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_8|, thread1Thread1of1ForFork0_#t~post2=|v_thread1Thread1of1ForFork0_#t~post2_4|, thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_12, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_4|, thread1Thread1of1ForFork0_thidvar1=v_thread1Thread1of1ForFork0_thidvar1_2, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_6|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_#t~post1, thread1Thread1of1ForFork0_#t~post2, thread1Thread1of1ForFork0_~i~0, thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_thidvar1] 2164#[L72-3, $Ultimate##0]don't care [172] L72-3-->L72-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre7#1] 2168#[L72-4, $Ultimate##0]don't care [188] L72-4-->L73: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1] 2198#[L73, $Ultimate##0]don't care [162] L73-->L73-1: Formula: (= |v_ULTIMATE.start_main_#t~pre9#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre9#1] 2200#[L73-1, $Ultimate##0]don't care [173] L73-1-->L73-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 2446#[L73-2, $Ultimate##0]don't care [163] L73-2-->L73-3: Formula: (and (<= (+ 4 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|) (select |v_#length_8| |v_ULTIMATE.start_main_~#t2~0#1.base_3|)) (= (select |v_#valid_9| |v_ULTIMATE.start_main_~#t2~0#1.base_3|) 1) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|) (= (store |v_#memory_int_6| |v_ULTIMATE.start_main_~#t2~0#1.base_3| (store (select |v_#memory_int_6| |v_ULTIMATE.start_main_~#t2~0#1.base_3|) |v_ULTIMATE.start_main_~#t2~0#1.offset_3| |v_ULTIMATE.start_main_#t~pre9#1_3|)) |v_#memory_int_5|)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_3|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_3|, #valid=|v_#valid_9|, #memory_int=|v_#memory_int_6|, #length=|v_#length_8|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_3|} OutVars{ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_3|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_3|, #valid=|v_#valid_9|, #memory_int=|v_#memory_int_5|, #length=|v_#length_8|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_3|} AuxVars[] AssignedVars[#memory_int] 2212#[L73-3, $Ultimate##0]don't care [222] L73-3-->$Ultimate##0: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar1_2) (= |v_ULTIMATE.start_main_#t~pre9#1_6| v_thread2Thread1of1ForFork1_thidvar0_2) (= 0 v_thread2Thread1of1ForFork1_thidvar2_2)) InVars {ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|} OutVars{thread2Thread1of1ForFork1_#res.offset=|v_thread2Thread1of1ForFork1_#res.offset_4|, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_12, thread2Thread1of1ForFork1_#t~post4=|v_thread2Thread1of1ForFork1_#t~post4_6|, thread2Thread1of1ForFork1_#t~post3=|v_thread2Thread1of1ForFork1_#t~post3_6|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_6|, thread2Thread1of1ForFork1_#res.base=|v_thread2Thread1of1ForFork1_#res.base_4|, thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_2, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#res.offset, thread2Thread1of1ForFork1_~i~1, thread2Thread1of1ForFork1_#t~post4, thread2Thread1of1ForFork1_#t~post3, thread2Thread1of1ForFork1_#res.base, thread2Thread1of1ForFork1_thidvar2, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 2216#[$Ultimate##0, L73-4, $Ultimate##0]don't care [210] $Ultimate##0-->L54-1: Formula: (= v_thread2Thread1of1ForFork1_~i~1_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_~i~1] 2144#[L54-1, L73-4, $Ultimate##0]don't care [2023-09-08 14:35:14,662 INFO L750 eck$LassoCheckResult]: Loop: 2144#[L54-1, L73-4, $Ultimate##0]don't care [211] L54-1-->L53: Formula: (< v_thread2Thread1of1ForFork1_~i~1_3 v_~M2~0_2) InVars {~M2~0=v_~M2~0_2, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_3} OutVars{~M2~0=v_~M2~0_2, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_3} AuxVars[] AssignedVars[] 2146#[L53, L73-4, $Ultimate##0]don't care [214] L53-->L54-1: Formula: (or (and (= v_~counter~0_Out_2 v_~counter~0_In_1) (= v_thread2Thread1of1ForFork1_~i~1_8 v_thread2Thread1of1ForFork1_~i~1_7) (= |v_thread2Thread1of1ForFork1_#t~post3_1| |v_thread2Thread1of1ForFork1_#t~post3_2|) (= |v_thread2Thread1of1ForFork1_#t~post4_2| |v_thread2Thread1of1ForFork1_#t~post4_1|) (<= v_~counter~0_In_1 0)) (and (< 0 v_~counter~0_In_1) (= v_~counter~0_In_1 (+ v_~counter~0_Out_2 1)) (= (+ v_thread2Thread1of1ForFork1_~i~1_7 1) v_thread2Thread1of1ForFork1_~i~1_8))) InVars {~counter~0=v_~counter~0_In_1, thread2Thread1of1ForFork1_#t~post4=|v_thread2Thread1of1ForFork1_#t~post4_1|, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_7, thread2Thread1of1ForFork1_#t~post3=|v_thread2Thread1of1ForFork1_#t~post3_1|} OutVars{~counter~0=v_~counter~0_Out_2, thread2Thread1of1ForFork1_#t~post4=|v_thread2Thread1of1ForFork1_#t~post4_2|, thread2Thread1of1ForFork1_~i~1=v_thread2Thread1of1ForFork1_~i~1_8, thread2Thread1of1ForFork1_#t~post3=|v_thread2Thread1of1ForFork1_#t~post3_2|} AuxVars[] AssignedVars[~counter~0, thread2Thread1of1ForFork1_#t~post4, thread2Thread1of1ForFork1_~i~1, thread2Thread1of1ForFork1_#t~post3] 2144#[L54-1, L73-4, $Ultimate##0]don't care [2023-09-08 14:35:14,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 14:35:14,663 INFO L85 PathProgramCache]: Analyzing trace with hash -510450494, now seen corresponding path program 1 times [2023-09-08 14:35:14,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 14:35:14,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687718658] [2023-09-08 14:35:14,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 14:35:14,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 14:35:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:14,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 14:35:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:14,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 14:35:14,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 14:35:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash 7716, now seen corresponding path program 1 times [2023-09-08 14:35:14,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 14:35:14,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271677524] [2023-09-08 14:35:14,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 14:35:14,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 14:35:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:14,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 14:35:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:14,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 14:35:14,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 14:35:14,727 INFO L85 PathProgramCache]: Analyzing trace with hash -916646235, now seen corresponding path program 1 times [2023-09-08 14:35:14,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 14:35:14,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405758529] [2023-09-08 14:35:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 14:35:14,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 14:35:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:14,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 14:35:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:14,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 14:35:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:15,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 14:35:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 14:35:15,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.09 02:35:15 BoogieIcfgContainer [2023-09-08 14:35:15,494 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-09-08 14:35:15,494 INFO L158 Benchmark]: Toolchain (without parser) took 3395.04ms. Allocated memory is still 298.8MB. Free memory was 255.3MB in the beginning and 255.3MB in the end (delta: -63.0kB). Peak memory consumption was 1.5MB. Max. memory is 8.0GB. [2023-09-08 14:35:15,495 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 244.3MB. Free memory was 198.3MB in the beginning and 198.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-09-08 14:35:15,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.89ms. Allocated memory is still 298.8MB. Free memory was 255.3MB in the beginning and 244.4MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-09-08 14:35:15,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.53ms. Allocated memory is still 298.8MB. Free memory was 244.4MB in the beginning and 242.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-09-08 14:35:15,495 INFO L158 Benchmark]: Boogie Preprocessor took 16.69ms. Allocated memory is still 298.8MB. Free memory was 242.8MB in the beginning and 241.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-09-08 14:35:15,496 INFO L158 Benchmark]: RCFGBuilder took 263.95ms. Allocated memory is still 298.8MB. Free memory was 241.4MB in the beginning and 227.0MB in the end (delta: 14.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-09-08 14:35:15,496 INFO L158 Benchmark]: BuchiAutomizer took 2883.81ms. Allocated memory is still 298.8MB. Free memory was 226.7MB in the beginning and 255.3MB in the end (delta: -28.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-09-08 14:35:15,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 244.3MB. Free memory was 198.3MB in the beginning and 198.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 183.89ms. Allocated memory is still 298.8MB. Free memory was 255.3MB in the beginning and 244.4MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.53ms. Allocated memory is still 298.8MB. Free memory was 244.4MB in the beginning and 242.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.69ms. Allocated memory is still 298.8MB. Free memory was 242.8MB in the beginning and 241.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 263.95ms. Allocated memory is still 298.8MB. Free memory was 241.4MB in the beginning and 227.0MB in the end (delta: 14.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2883.81ms. Allocated memory is still 298.8MB. Free memory was 226.7MB in the beginning and 255.3MB in the end (delta: -28.6MB). There was no memory consumed. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + M1 and consists of 6 locations. The remainder module has 323 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 91 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax313 hnf100 lsp21 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 52]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L38] 0 int M1, M2, counter; VAL [M1=0, M2=0, counter=0] [L65] 0 pthread_t t1, t2; VAL [M1=0, M2=0, counter=0, t1={12334:0}, t2={12333:0}] [L67] 0 M1 = __VERIFIER_nondet_int() VAL [M1=1, M2=0, __VERIFIER_nondet_int()=1, counter=0, t1={12334:0}, t2={12333:0}] [L68] 0 M2 = __VERIFIER_nondet_int() VAL [M1=1, M2=1, __VERIFIER_nondet_int()=1, counter=0, t1={12334:0}, t2={12333:0}] [L69] CALL 0 assume_abort_if_not(M1 > 0 && M2 > 0) [L35] COND FALSE 0 !(!cond) VAL [M1=1, M2=1, \old(cond)=1, cond=1, counter=0] [L69] RET 0 assume_abort_if_not(M1 > 0 && M2 > 0) [L72] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [M1=1, M2=1, counter=0, pthread_create(&t1, 0, thread1, 0)=16035, t1={12334:0}, t2={12333:0}] [L73] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [M1=1, M2=1, counter=0, pthread_create(&t2, 0, thread2, 0)=16036, t1={12334:0}, t2={12333:0}] [L51] 2 int i = 0; VAL [M1=1, M2=1, counter=0, i=0] Loop: [L52] COND TRUE i < M2 [L54] COND TRUE counter > 0 [L55] counter-- [L56] i++ End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 52]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L38] 0 int M1, M2, counter; VAL [M1=0, M2=0, counter=0] [L65] 0 pthread_t t1, t2; VAL [M1=0, M2=0, counter=0, t1={12334:0}, t2={12333:0}] [L67] 0 M1 = __VERIFIER_nondet_int() VAL [M1=1, M2=0, __VERIFIER_nondet_int()=1, counter=0, t1={12334:0}, t2={12333:0}] [L68] 0 M2 = __VERIFIER_nondet_int() VAL [M1=1, M2=1, __VERIFIER_nondet_int()=1, counter=0, t1={12334:0}, t2={12333:0}] [L69] CALL 0 assume_abort_if_not(M1 > 0 && M2 > 0) [L35] COND FALSE 0 !(!cond) VAL [M1=1, M2=1, \old(cond)=1, cond=1, counter=0] [L69] RET 0 assume_abort_if_not(M1 > 0 && M2 > 0) [L72] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [M1=1, M2=1, counter=0, pthread_create(&t1, 0, thread1, 0)=16035, t1={12334:0}, t2={12333:0}] [L73] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [M1=1, M2=1, counter=0, pthread_create(&t2, 0, thread2, 0)=16036, t1={12334:0}, t2={12333:0}] [L51] 2 int i = 0; VAL [M1=1, M2=1, counter=0, i=0] Loop: [L52] COND TRUE i < M2 [L54] COND TRUE counter > 0 [L55] counter-- [L56] i++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-09-08 14:35:15,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...