/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 [2023-09-17 11:24:42,628 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-09-17 11:24:42,680 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-09-17 11:24:42,705 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-17 11:24:42,706 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-17 11:24:42,706 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-17 11:24:42,707 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-17 11:24:42,707 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-09-17 11:24:42,707 INFO L137 SettingsManager]: * Use SBE=true [2023-09-17 11:24:42,707 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-09-17 11:24:42,708 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-09-17 11:24:42,708 INFO L137 SettingsManager]: * Use old map elimination=false [2023-09-17 11:24:42,708 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-09-17 11:24:42,708 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-09-17 11:24:42,709 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-09-17 11:24:42,709 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-17 11:24:42,709 INFO L137 SettingsManager]: * sizeof long=4 [2023-09-17 11:24:42,709 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-17 11:24:42,709 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-17 11:24:42,710 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-09-17 11:24:42,710 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-09-17 11:24:42,716 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-09-17 11:24:42,716 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-09-17 11:24:42,716 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-09-17 11:24:42,719 INFO L137 SettingsManager]: * sizeof long double=12 [2023-09-17 11:24:42,719 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-09-17 11:24:42,719 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-09-17 11:24:42,720 INFO L137 SettingsManager]: * Use constant arrays=true [2023-09-17 11:24:42,720 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-09-17 11:24:42,721 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-17 11:24:42,721 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-17 11:24:42,721 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-17 11:24:42,722 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-17 11:24:42,722 INFO L137 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-17 11:24:42,722 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-09-17 11:24:42,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Fairness type for concurrent programs -> NONE [2023-09-17 11:24:42,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-17 11:24:42,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-17 11:24:42,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-17 11:24:42,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-17 11:24:42,929 INFO L274 PluginConnector]: CDTParser initialized [2023-09-17 11:24:42,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-09-17 11:24:43,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-17 11:24:44,112 INFO L384 CDTParser]: Found 1 translation units. [2023-09-17 11:24:44,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-09-17 11:24:44,118 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6b1b9204/e3ca1fa7b62e4e4ea8c36b901ecafb89/FLAG7faf38bae [2023-09-17 11:24:44,132 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6b1b9204/e3ca1fa7b62e4e4ea8c36b901ecafb89 [2023-09-17 11:24:44,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-17 11:24:44,135 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-17 11:24:44,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-17 11:24:44,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-17 11:24:44,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-17 11:24:44,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a4eec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44, skipping insertion in model container [2023-09-17 11:24:44,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-17 11:24:44,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-17 11:24:44,294 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[2052,2065] [2023-09-17 11:24:44,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-17 11:24:44,308 INFO L203 MainTranslator]: Completed pre-run [2023-09-17 11:24:44,333 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[2052,2065] [2023-09-17 11:24:44,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-17 11:24:44,342 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-17 11:24:44,343 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-17 11:24:44,349 INFO L208 MainTranslator]: Completed translation [2023-09-17 11:24:44,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44 WrapperNode [2023-09-17 11:24:44,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-17 11:24:44,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-17 11:24:44,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-17 11:24:44,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-17 11:24:44,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,383 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-09-17 11:24:44,384 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-17 11:24:44,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-17 11:24:44,385 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-17 11:24:44,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-17 11:24:44,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-17 11:24:44,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-17 11:24:44,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-17 11:24:44,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-17 11:24:44,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (1/1) ... [2023-09-17 11:24:44,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:44,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:44,456 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) [2023-09-17 11:24:44,481 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 [2023-09-17 11:24:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-17 11:24:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-17 11:24:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-17 11:24:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-17 11:24:44,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-17 11:24:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-17 11:24:44,498 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-17 11:24:44,588 INFO L236 CfgBuilder]: Building ICFG [2023-09-17 11:24:44,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-17 11:24:44,705 INFO L277 CfgBuilder]: Performing block encoding [2023-09-17 11:24:44,729 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-17 11:24:44,730 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-09-17 11:24:44,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 11:24:44 BoogieIcfgContainer [2023-09-17 11:24:44,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-17 11:24:44,732 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-09-17 11:24:44,733 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-09-17 11:24:44,735 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-09-17 11:24:44,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-17 11:24:44,736 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.09 11:24:44" (1/3) ... [2023-09-17 11:24:44,737 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@268caaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.09 11:24:44, skipping insertion in model container [2023-09-17 11:24:44,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-17 11:24:44,737 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 11:24:44" (2/3) ... [2023-09-17 11:24:44,737 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@268caaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.09 11:24:44, skipping insertion in model container [2023-09-17 11:24:44,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-17 11:24:44,737 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 11:24:44" (3/3) ... [2023-09-17 11:24:44,738 INFO L332 chiAutomizerObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2023-09-17 11:24:44,793 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-17 11:24:44,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 73 transitions, 156 flow [2023-09-17 11:24:44,844 INFO L124 PetriNetUnfolderBase]: 6/69 cut-off events. [2023-09-17 11:24:44,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-09-17 11:24:44,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 69 events. 6/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-09-17 11:24:44,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 73 transitions, 156 flow [2023-09-17 11:24:44,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 69 transitions, 144 flow [2023-09-17 11:24:44,861 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-09-17 11:24:44,861 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-09-17 11:24:44,861 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-09-17 11:24:44,861 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-09-17 11:24:44,862 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-09-17 11:24:44,862 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-09-17 11:24:44,862 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-09-17 11:24:44,862 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-09-17 11:24:44,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-09-17 11:24:45,025 INFO L131 ngComponentsAnalysis]: Automaton has 150 accepting balls. 638 [2023-09-17 11:24:45,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-09-17 11:24:45,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-09-17 11:24:45,032 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] [2023-09-17 11:24:45,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-09-17 11:24:45,032 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-09-17 11:24:45,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 946 states, but on-demand construction may add more states [2023-09-17 11:24:45,045 INFO L131 ngComponentsAnalysis]: Automaton has 150 accepting balls. 638 [2023-09-17 11:24:45,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-09-17 11:24:45,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-09-17 11:24:45,046 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] [2023-09-17 11:24:45,046 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-09-17 11:24:45,051 INFO L748 eck$LassoCheckResult]: Stem: 75#[$Ultimate##0]don't care [151] $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] 78#[L-1]don't care [157] L-1-->L-1-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 80#[L-1-1]don't care [173] L-1-1-->L21: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 82#[L21]don't care [150] 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[] 84#[L21-1]don't care [166] 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[] 86#[L21-2]don't care [165] 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[] 88#[L21-3]don't care [138] 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[] 90#[L21-4]don't care [183] L21-4-->L38: Formula: (= 0 v_~M1~0_3) InVars {} OutVars{~M1~0=v_~M1~0_3} AuxVars[] AssignedVars[~M1~0] 92#[L38]don't care [184] L38-->L38-1: Formula: (= 0 v_~M2~0_3) InVars {} OutVars{~M2~0=v_~M2~0_3} AuxVars[] AssignedVars[~M2~0] 94#[L38-1]don't care [141] L38-1-->L-1-2: Formula: (= v_~counter~0_7 0) InVars {} OutVars{~counter~0=v_~counter~0_7} AuxVars[] AssignedVars[~counter~0] 96#[L-1-2]don't care [174] 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] 98#[L-1-3]don't care [179] 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~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~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_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~pre7#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 100#[L65]don't care [186] 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] 102#[L65-1]don't care [170] 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] 104#[L65-2]don't care [156] 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] 106#[L67]don't care [169] 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] 108#[L67-1]don't care [145] 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] 110#[L68]don't care [172] 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] 112#[L68-1]don't care [143] 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] 114#[L68-2]don't care [129] 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] 116#[L69]don't care [133] 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] 118#[L69-1]don't care [175] 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] 120#[L34]don't care [147] 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] 122#[L35]don't care [168] 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[] 126#[L34-1]don't care [163] 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] 128#[L72]don't care [185] L72-->L72-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 130#[L72-1]don't care [119] 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] 132#[L72-2]don't care [207] 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] 134#[$Ultimate##0, L72-3]don't care [188] $Ultimate##0-->L41-4: Formula: (= v_thread1Thread1of1ForFork0_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_~i~0] 138#[L72-3, L41-4]don't care [2023-09-17 11:24:45,052 INFO L750 eck$LassoCheckResult]: Loop: 138#[L72-3, L41-4]don't care [189] 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[] 144#[L72-3, L42]don't care [192] 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] 156#[L44, L72-3]don't care [194] 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] 172#[L41-2, L72-3]don't care [196] 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] 192#[L41-3, L72-3]don't care [197] L41-3-->L41-4: Formula: true InVars {} OutVars{thread1Thread1of1ForFork0_#t~post1=|v_thread1Thread1of1ForFork0_#t~post1_5|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post1] 138#[L72-3, L41-4]don't care [2023-09-17 11:24:45,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-17 11:24:45,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1762635055, now seen corresponding path program 1 times [2023-09-17 11:24:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-17 11:24:45,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772229750] [2023-09-17 11:24:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-17 11:24:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-17 11:24:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:45,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-17 11:24:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:45,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-17 11:24:45,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-17 11:24:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash 209087199, now seen corresponding path program 1 times [2023-09-17 11:24:45,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-17 11:24:45,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114002824] [2023-09-17 11:24:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-17 11:24:45,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-17 11:24:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:45,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-17 11:24:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:45,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-17 11:24:45,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-17 11:24:45,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2041170545, now seen corresponding path program 1 times [2023-09-17 11:24:45,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-17 11:24:45,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694033459] [2023-09-17 11:24:45,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-17 11:24:45,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-17 11:24:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:45,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-17 11:24:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:45,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-17 11:24:45,297 INFO L210 LassoAnalysis]: Preferences: [2023-09-17 11:24:45,297 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-09-17 11:24:45,298 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-09-17 11:24:45,298 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-09-17 11:24:45,298 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-09-17 11:24:45,298 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,298 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-09-17 11:24:45,298 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-09-17 11:24:45,298 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration1_Loop [2023-09-17 11:24:45,298 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-09-17 11:24:45,298 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-09-17 11:24:45,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,326 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,419 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-09-17 11:24:45,420 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-09-17 11:24:45,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,424 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) [2023-09-17 11:24:45,425 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 [2023-09-17 11:24:45,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,442 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-17 11:24:45,442 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: [] [2023-09-17 11:24:45,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-09-17 11:24:45,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,447 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) [2023-09-17 11:24:45,448 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 [2023-09-17 11:24:45,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,478 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 [2023-09-17 11:24:45,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,480 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) [2023-09-17 11:24:45,482 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 [2023-09-17 11:24:45,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-09-17 11:24:45,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,534 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-17 11:24:45,534 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] [2023-09-17 11:24:45,540 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 [2023-09-17 11:24:45,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,550 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) [2023-09-17 11:24:45,554 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 [2023-09-17 11:24:45,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,577 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-17 11:24:45,577 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_#t~post1=0} Honda state: {thread1Thread1of1ForFork0_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-17 11:24:45,580 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 [2023-09-17 11:24:45,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,582 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) [2023-09-17 11:24:45,583 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 [2023-09-17 11:24:45,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-17 11:24:45,601 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: [] [2023-09-17 11:24:45,605 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 [2023-09-17 11:24:45,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,607 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) [2023-09-17 11:24:45,609 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 [2023-09-17 11:24:45,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-17 11:24:45,623 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_#t~post2=0} Honda state: {thread1Thread1of1ForFork0_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-09-17 11:24:45,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-09-17 11:24:45,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,630 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) [2023-09-17 11:24:45,638 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 [2023-09-17 11:24:45,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,650 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-17 11:24:45,650 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: [] [2023-09-17 11:24:45,654 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 [2023-09-17 11:24:45,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,656 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) [2023-09-17 11:24:45,658 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 [2023-09-17 11:24:45,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,673 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-09-17 11:24:45,673 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: [] [2023-09-17 11:24:45,676 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 [2023-09-17 11:24:45,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,679 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) [2023-09-17 11:24:45,685 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 [2023-09-17 11:24:45,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-09-17 11:24:45,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,701 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 [2023-09-17 11:24:45,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,704 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) [2023-09-17 11:24:45,705 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 [2023-09-17 11:24:45,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-09-17 11:24:45,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-09-17 11:24:45,813 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-09-17 11:24:45,818 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 [2023-09-17 11:24:45,819 INFO L210 LassoAnalysis]: Preferences: [2023-09-17 11:24:45,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-09-17 11:24:45,819 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-09-17 11:24:45,819 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-09-17 11:24:45,819 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-09-17 11:24:45,819 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,819 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-09-17 11:24:45,819 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-09-17 11:24:45,819 INFO L133 ssoRankerPreferences]: Filename of dumped script: popl20-nonblocking-cntr-alt.wvr.c_BEv2_Iteration1_Loop [2023-09-17 11:24:45,819 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-09-17 11:24:45,819 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-09-17 11:24:45,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-09-17 11:24:45,926 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-09-17 11:24:45,929 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-09-17 11:24:45,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,931 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) [2023-09-17 11:24:45,933 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 [2023-09-17 11:24:45,935 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 [2023-09-17 11:24:45,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:45,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-17 11:24:45,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:45,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:45,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:45,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-17 11:24:45,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-17 11:24:45,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-17 11:24:45,951 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 [2023-09-17 11:24:45,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,952 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) [2023-09-17 11:24:45,953 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 [2023-09-17 11:24:45,954 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 [2023-09-17 11:24:45,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:45,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:45,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:45,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:45,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-17 11:24:45,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-17 11:24:45,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-17 11:24:45,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-09-17 11:24:45,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:45,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:45,983 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) [2023-09-17 11:24:45,985 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 [2023-09-17 11:24:45,987 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 [2023-09-17 11:24:45,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:45,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:45,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:45,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:46,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-17 11:24:46,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-17 11:24:46,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-17 11:24:46,024 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 [2023-09-17 11:24:46,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:46,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:46,026 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) [2023-09-17 11:24:46,027 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 [2023-09-17 11:24:46,030 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 [2023-09-17 11:24:46,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:46,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-17 11:24:46,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:46,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:46,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:46,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-17 11:24:46,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-17 11:24:46,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-17 11:24:46,081 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 [2023-09-17 11:24:46,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:46,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:46,093 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) [2023-09-17 11:24:46,095 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 [2023-09-17 11:24:46,101 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 [2023-09-17 11:24:46,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:46,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:46,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:46,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:46,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-17 11:24:46,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-17 11:24:46,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-17 11:24:46,128 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 [2023-09-17 11:24:46,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:46,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:46,129 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) [2023-09-17 11:24:46,131 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 [2023-09-17 11:24:46,133 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 [2023-09-17 11:24:46,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:46,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-17 11:24:46,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:46,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:46,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:46,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-17 11:24:46,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-17 11:24:46,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-17 11:24:46,161 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 [2023-09-17 11:24:46,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:46,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:46,163 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) [2023-09-17 11:24:46,165 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 [2023-09-17 11:24:46,166 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 [2023-09-17 11:24:46,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:46,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:46,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:46,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:46,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-09-17 11:24:46,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-09-17 11:24:46,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-09-17 11:24:46,200 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 [2023-09-17 11:24:46,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:46,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:46,202 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) [2023-09-17 11:24:46,204 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 [2023-09-17 11:24:46,205 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 [2023-09-17 11:24:46,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-09-17 11:24:46,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-09-17 11:24:46,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-09-17 11:24:46,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-09-17 11:24:46,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-09-17 11:24:46,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-09-17 11:24:46,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-09-17 11:24:46,227 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-09-17 11:24:46,230 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-09-17 11:24:46,230 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-09-17 11:24:46,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-17 11:24:46,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-17 11:24:46,287 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) [2023-09-17 11:24:46,293 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-09-17 11:24:46,293 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-09-17 11:24:46,293 INFO L513 LassoAnalysis]: Proved termination. [2023-09-17 11:24:46,293 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~M1~0, thread1Thread1of1ForFork0_~i~0) = 1*~M1~0 - 1*thread1Thread1of1ForFork0_~i~0 Supporting invariants [] [2023-09-17 11:24:46,298 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 [2023-09-17 11:24:46,298 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 [2023-09-17 11:24:46,300 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-09-17 11:24:46,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-17 11:24:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-17 11:24:46,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2023-09-17 11:24:46,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-17 11:24:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-17 11:24:46,423 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-17 11:24:46,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-17 11:24:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-17 11:24:46,484 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 [2023-09-17 11:24:46,486 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 946 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) [2023-09-17 11:24:46,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 946 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 2207 states and 7215 transitions. Complement of second has 9 states. [2023-09-17 11:24:46,586 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 [2023-09-17 11:24:46,589 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) [2023-09-17 11:24:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 197 transitions. [2023-09-17 11:24:46,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 197 transitions. Stem has 29 letters. Loop has 5 letters. [2023-09-17 11:24:46,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-09-17 11:24:46,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 197 transitions. Stem has 34 letters. Loop has 5 letters. [2023-09-17 11:24:46,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-09-17 11:24:46,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 197 transitions. Stem has 29 letters. Loop has 10 letters. [2023-09-17 11:24:46,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-09-17 11:24:46,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2207 states and 7215 transitions. [2023-09-17 11:24:46,615 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 144 [2023-09-17 11:24:46,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2207 states to 623 states and 1829 transitions. [2023-09-17 11:24:46,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 325 [2023-09-17 11:24:46,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 444 [2023-09-17 11:24:46,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 623 states and 1829 transitions. [2023-09-17 11:24:46,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-09-17 11:24:46,628 INFO L218 hiAutomatonCegarLoop]: Abstraction has 623 states and 1829 transitions. [2023-09-17 11:24:46,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states and 1829 transitions. [2023-09-17 11:24:46,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 506. [2023-09-17 11:24:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 506 states have (on average 2.9288537549407114) internal successors, (1482), 505 states have internal predecessors, (1482), 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) [2023-09-17 11:24:46,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 1482 transitions. [2023-09-17 11:24:46,668 INFO L240 hiAutomatonCegarLoop]: Abstraction has 506 states and 1482 transitions. [2023-09-17 11:24:46,668 INFO L428 stractBuchiCegarLoop]: Abstraction has 506 states and 1482 transitions. [2023-09-17 11:24:46,668 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-09-17 11:24:46,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 506 states and 1482 transitions. [2023-09-17 11:24:46,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-09-17 11:24:46,716 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 144 [2023-09-17 11:24:46,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-09-17 11:24:46,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-09-17 11:24:46,717 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] [2023-09-17 11:24:46,717 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-09-17 11:24:46,718 INFO L748 eck$LassoCheckResult]: Stem: 5220#[$Ultimate##0]don't care [151] $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] 5222#[L-1]don't care [157] L-1-->L-1-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 5236#[L-1-1]don't care [173] L-1-1-->L21: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 5048#[L21]don't care [150] 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[] 5050#[L21-1]don't care [166] 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[] 5248#[L21-2]don't care [165] 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[] 5250#[L21-3]don't care [138] 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[] 4858#[L21-4]don't care [183] L21-4-->L38: Formula: (= 0 v_~M1~0_3) InVars {} OutVars{~M1~0=v_~M1~0_3} AuxVars[] AssignedVars[~M1~0] 4860#[L38]don't care [184] L38-->L38-1: Formula: (= 0 v_~M2~0_3) InVars {} OutVars{~M2~0=v_~M2~0_3} AuxVars[] AssignedVars[~M2~0] 5274#[L38-1]don't care [141] L38-1-->L-1-2: Formula: (= v_~counter~0_7 0) InVars {} OutVars{~counter~0=v_~counter~0_7} AuxVars[] AssignedVars[~counter~0] 5286#[L-1-2]don't care [174] 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] 5310#[L-1-3]don't care [179] 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~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~nondet6#1=|v_ULTIMATE.start_main_#t~nondet6#1_1|, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_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~pre7#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 5314#[L65]don't care [186] 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] 4802#[L65-1]don't care [170] 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] 4804#[L65-2]don't care [156] 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] 5234#[L67]don't care [169] 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] 5032#[L67-1]don't care [145] 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] 5034#[L68]don't care [172] 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] 5028#[L68-1]don't care [143] 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] 4942#[L68-2]don't care [129] 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] 4462#[L69]don't care [133] 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] 4464#[L69-1]don't care [175] 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] 5152#[L34]don't care [147] 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] 5216#[L35]don't care [168] 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[] 5298#[L34-1]don't care [163] 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] 4862#[L72]don't care [185] L72-->L72-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 4864#[L72-1]don't care [119] 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] 5190#[L72-2]don't care [207] 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] 4732#[$Ultimate##0, L72-3]don't care [161] 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] 4734#[L72-4, $Ultimate##0]don't care [176] 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] 4766#[L73, $Ultimate##0]don't care [152] L73-->L73-1: Formula: (= |v_ULTIMATE.start_main_#t~pre9#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre9#1] 4768#[$Ultimate##0, L73-1]don't care [162] 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] 5110#[L73-2, $Ultimate##0]don't care [153] 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] 4782#[L73-3, $Ultimate##0]don't care [210] L73-3-->$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] 4784#[$Ultimate##0, $Ultimate##0, L73-4]don't care [198] $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] 4710#[L54-1, $Ultimate##0, L73-4]don't care [2023-09-17 11:24:46,718 INFO L750 eck$LassoCheckResult]: Loop: 4710#[L54-1, $Ultimate##0, L73-4]don't care [199] 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[] 4712#[L53, $Ultimate##0, L73-4]don't care [202] 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] 4710#[L54-1, $Ultimate##0, L73-4]don't care [2023-09-17 11:24:46,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-17 11:24:46,718 INFO L85 PathProgramCache]: Analyzing trace with hash 248868007, now seen corresponding path program 1 times [2023-09-17 11:24:46,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-17 11:24:46,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733432467] [2023-09-17 11:24:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-17 11:24:46,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-17 11:24:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:46,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-17 11:24:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:46,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-17 11:24:46,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-17 11:24:46,780 INFO L85 PathProgramCache]: Analyzing trace with hash 7332, now seen corresponding path program 1 times [2023-09-17 11:24:46,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-17 11:24:46,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918454116] [2023-09-17 11:24:46,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-17 11:24:46,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-17 11:24:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:46,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-17 11:24:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:46,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-17 11:24:46,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-17 11:24:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1356007478, now seen corresponding path program 1 times [2023-09-17 11:24:46,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-17 11:24:46,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985739563] [2023-09-17 11:24:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-17 11:24:46,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-17 11:24:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:46,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-17 11:24:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:46,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-17 11:24:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:47,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-17 11:24:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-17 11:24:47,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.09 11:24:47 BoogieIcfgContainer [2023-09-17 11:24:47,685 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-09-17 11:24:47,686 INFO L158 Benchmark]: Toolchain (without parser) took 3551.14ms. Allocated memory is still 249.6MB. Free memory was 198.4MB in the beginning and 197.9MB in the end (delta: 510.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-09-17 11:24:47,686 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory was 155.0MB in the beginning and 154.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-09-17 11:24:47,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.12ms. Allocated memory is still 249.6MB. Free memory was 198.4MB in the beginning and 187.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-09-17 11:24:47,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.72ms. Allocated memory is still 249.6MB. Free memory was 187.4MB in the beginning and 186.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-09-17 11:24:47,687 INFO L158 Benchmark]: Boogie Preprocessor took 31.63ms. Allocated memory is still 249.6MB. Free memory was 186.4MB in the beginning and 184.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-09-17 11:24:47,687 INFO L158 Benchmark]: RCFGBuilder took 312.40ms. Allocated memory is still 249.6MB. Free memory was 184.8MB in the beginning and 170.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-09-17 11:24:47,688 INFO L158 Benchmark]: BuchiAutomizer took 2952.93ms. Allocated memory is still 249.6MB. Free memory was 170.6MB in the beginning and 197.9MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-09-17 11:24:47,705 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory was 155.0MB in the beginning and 154.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.12ms. Allocated memory is still 249.6MB. Free memory was 198.4MB in the beginning and 187.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.72ms. Allocated memory is still 249.6MB. Free memory was 187.4MB in the beginning and 186.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.63ms. Allocated memory is still 249.6MB. Free memory was 186.4MB in the beginning and 184.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 312.40ms. Allocated memory is still 249.6MB. Free memory was 184.8MB in the beginning and 170.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2952.93ms. Allocated memory is still 249.6MB. Free memory was 170.6MB in the beginning and 197.9MB in the end (delta: -27.3MB). 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 506 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 117 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, 115 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 97 mSDtfsCounter, 44 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: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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={12194:0}, t2={12193:0}] [L67] 0 M1 = __VERIFIER_nondet_int() VAL [M1=1, M2=0, __VERIFIER_nondet_int()=1, counter=0, t1={12194:0}, t2={12193:0}] [L68] 0 M2 = __VERIFIER_nondet_int() VAL [M1=1, M2=1, __VERIFIER_nondet_int()=1, counter=0, t1={12194:0}, t2={12193:0}] [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)=7526, t1={12194:0}, t2={12193:0}] [L73] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [M1=1, M2=1, counter=0, pthread_create(&t2, 0, thread2, 0)=7527, t1={12194:0}, t2={12193:0}] [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={12194:0}, t2={12193:0}] [L67] 0 M1 = __VERIFIER_nondet_int() VAL [M1=1, M2=0, __VERIFIER_nondet_int()=1, counter=0, t1={12194:0}, t2={12193:0}] [L68] 0 M2 = __VERIFIER_nondet_int() VAL [M1=1, M2=1, __VERIFIER_nondet_int()=1, counter=0, t1={12194:0}, t2={12193:0}] [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)=7526, t1={12194:0}, t2={12193:0}] [L73] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [M1=1, M2=1, counter=0, pthread_create(&t2, 0, thread2, 0)=7527, t1={12194:0}, t2={12193:0}] [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! [2023-09-17 11:24:47,741 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...