/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:12:35,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:12:35,410 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-09 23:12:35,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:12:35,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:12:35,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:12:35,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:12:35,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:12:35,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:12:35,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:12:35,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:12:35,455 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:12:35,456 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:12:35,457 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:12:35,457 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:12:35,457 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:12:35,458 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:12:35,458 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:12:35,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:12:35,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:12:35,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:12:35,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:12:35,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:12:35,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:12:35,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:12:35,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:12:35,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:12:35,461 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:12:35,462 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:12:35,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:12:35,463 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:12:35,463 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:12:35,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:12:35,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:12:35,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:12:35,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:12:35,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:12:35,464 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:12:35,464 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2024-02-09 23:12:35,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:12:35,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:12:35,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:12:35,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-09 23:12:35,785 INFO L274 PluginConnector]: CDTParser initialized [2024-02-09 23:12:35,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2024-02-09 23:12:37,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-09 23:12:37,369 INFO L384 CDTParser]: Found 1 translation units. [2024-02-09 23:12:37,369 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2024-02-09 23:12:37,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf2024fa/7706fd99177949b9bfea58e64623f15b/FLAG0899a8430 [2024-02-09 23:12:37,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf2024fa/7706fd99177949b9bfea58e64623f15b [2024-02-09 23:12:37,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:12:37,413 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-09 23:12:37,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-09 23:12:37,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-09 23:12:37,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-09 23:12:37,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 11:12:37" (1/1) ... [2024-02-09 23:12:37,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fbbedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:37, skipping insertion in model container [2024-02-09 23:12:37,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 11:12:37" (1/1) ... [2024-02-09 23:12:37,570 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-09 23:12:37,928 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2024-02-09 23:12:38,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-09 23:12:38,223 INFO L202 MainTranslator]: Completed pre-run [2024-02-09 23:12:38,246 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2024-02-09 23:12:38,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-09 23:12:38,301 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2024-02-09 23:12:38,301 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2024-02-09 23:12:38,301 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2024-02-09 23:12:38,307 INFO L206 MainTranslator]: Completed translation [2024-02-09 23:12:38,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38 WrapperNode [2024-02-09 23:12:38,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-09 23:12:38,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:12:38,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:12:38,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:12:38,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,378 INFO L138 Inliner]: procedures = 171, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 207 [2024-02-09 23:12:38,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:12:38,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:12:38,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:12:38,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:12:38,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:12:38,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:12:38,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:12:38,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:12:38,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (1/1) ... [2024-02-09 23:12:38,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:12:38,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:12:38,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:12:38,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-02-09 23:12:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-02-09 23:12:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-02-09 23:12:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-02-09 23:12:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-02-09 23:12:38,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-02-09 23:12:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-02-09 23:12:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-09 23:12:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-09 23:12:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-09 23:12:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-09 23:12:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-02-09 23:12:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-09 23:12:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:12:38,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:12:38,561 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-09 23:12:38,698 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:12:38,700 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:12:38,877 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:12:38,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:12:38,884 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2024-02-09 23:12:38,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:12:38 BoogieIcfgContainer [2024-02-09 23:12:38,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:12:38,888 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:12:38,888 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:12:38,892 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:12:38,893 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:12:38,893 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.02 11:12:37" (1/3) ... [2024-02-09 23:12:38,894 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16a047e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:12:38, skipping insertion in model container [2024-02-09 23:12:38,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:12:38,894 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 11:12:38" (2/3) ... [2024-02-09 23:12:38,895 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16a047e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:12:38, skipping insertion in model container [2024-02-09 23:12:38,895 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:12:38,895 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:12:38" (3/3) ... [2024-02-09 23:12:38,896 INFO L332 chiAutomizerObserver]: Analyzing ICFG lamport.i [2024-02-09 23:12:39,004 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-09 23:12:39,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 141 transitions, 296 flow [2024-02-09 23:12:39,071 INFO L124 PetriNetUnfolderBase]: 26/137 cut-off events. [2024-02-09 23:12:39,071 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-09 23:12:39,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 26/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 305 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 107. Up to 5 conditions per place. [2024-02-09 23:12:39,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 141 transitions, 296 flow [2024-02-09 23:12:39,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 137 transitions, 286 flow [2024-02-09 23:12:39,099 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:12:39,099 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:12:39,099 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:12:39,099 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:12:39,100 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:12:39,100 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:12:39,100 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:12:39,100 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-02-09 23:12:39,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2024-02-09 23:12:39,510 INFO L131 ngComponentsAnalysis]: Automaton has 133 accepting balls. 4473 [2024-02-09 23:12:39,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:39,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:39,517 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] [2024-02-09 23:12:39,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-09 23:12:39,517 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:12:39,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 5536 states, but on-demand construction may add more states [2024-02-09 23:12:39,587 INFO L131 ngComponentsAnalysis]: Automaton has 133 accepting balls. 4473 [2024-02-09 23:12:39,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:39,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:39,588 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] [2024-02-09 23:12:39,588 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-09 23:12:39,597 INFO L748 eck$LassoCheckResult]: Stem: 123#[$Ultimate##0]don't care [273] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 126#[L-1]don't care [280] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 128#[L12]don't care [320] L12-->L12-1: 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[] 130#[L12-1]don't care [338] L12-1-->L12-2: 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[] 132#[L12-2]don't care [336] L12-2-->L12-3: 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[] 134#[L12-3]don't care [361] L12-3-->L12-4: Formula: (and (= (select |v_#length_2| 2) 10) (= (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[] 136#[L12-4]don't care [354] L12-4-->L700: Formula: (= v_~x~0_5 0) InVars {} OutVars{~x~0=v_~x~0_5} AuxVars[] AssignedVars[~x~0] 138#[L700]don't care [296] L700-->L701: Formula: (= v_~y~0_17 0) InVars {} OutVars{~y~0=v_~y~0_17} AuxVars[] AssignedVars[~y~0] 140#[L701]don't care [366] L701-->L701-1: Formula: (= v_~b1~0_7 0) InVars {} OutVars{~b1~0=v_~b1~0_7} AuxVars[] AssignedVars[~b1~0] 142#[L701-1]don't care [261] L701-1-->L702: Formula: (= v_~b2~0_7 0) InVars {} OutVars{~b2~0=v_~b2~0_7} AuxVars[] AssignedVars[~b2~0] 144#[L702]don't care [266] L702-->L-1-1: Formula: (= v_~X~0_7 0) InVars {} OutVars{~X~0=v_~X~0_7} AuxVars[] AssignedVars[~X~0] 146#[L-1-1]don't care [371] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 148#[L-1-2]don't care [373] L-1-2-->L844: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#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~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 150#[L844]don't care [310] L844-->L844-1: 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] 152#[L844-1]don't care [294] L844-1-->L844-2: 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] 154#[L844-2]don't care [330] L844-2-->L845: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 156#[L845]don't care [358] L845-->L845-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 158#[L845-1]don't care [258] L845-1-->L845-2: 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) (= (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~pre4#1_3|)) |v_#memory_int_3|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|))) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 160#[L845-2]don't care [485] L845-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork1_#in~_#1.offset_4| 0) (= v_thr1Thread1of1ForFork1_thidvar1_2 0) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork1_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_4|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork1_thidvar1=v_thr1Thread1of1ForFork1_thidvar1_2, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_4|, thr1Thread1of1ForFork1_thidvar0=v_thr1Thread1of1ForFork1_thidvar0_2, thr1Thread1of1ForFork1_#res#1.base=|v_thr1Thread1of1ForFork1_#res#1.base_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_12|, thr1Thread1of1ForFork1_#res#1.offset=|v_thr1Thread1of1ForFork1_#res#1.offset_4|, thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_8|, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_30|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_4|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#in~_#1.base, thr1Thread1of1ForFork1_#in~_#1.offset, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork1_thidvar1, thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_thidvar0, thr1Thread1of1ForFork1_#res#1.base, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr1Thread1of1ForFork1_~b21~0#1, thr1Thread1of1ForFork1_#res#1.offset, thr1Thread1of1ForFork1_~x1~0#1, thr1Thread1of1ForFork1_~y1~0#1, thr1Thread1of1ForFork1_~_#1.base] 162#[$Ultimate##0, L845-3]don't care [432] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr1Thread1of1ForFork1_~_#1.offset_1| |v_thr1Thread1of1ForFork1_#in~_#1.offset_1|) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_1| |v_thr1Thread1of1ForFork1_~_#1.base_1|)) InVars {thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_~_#1.base] 164#[$Ultimate##3, L845-3]don't care [434] $Ultimate##3-->L753-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 170#[L753-1, L845-3]don't care [2024-02-09 23:12:39,600 INFO L750 eck$LassoCheckResult]: Loop: 170#[L753-1, L845-3]don't care [436] L753-1-->L705: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 180#[L705, L845-3]don't care [440] L705-->L707: Formula: (= v_~b1~0_5 1) InVars {} OutVars{~b1~0=v_~b1~0_5} AuxVars[] AssignedVars[~b1~0] 196#[L707, L845-3]don't care [443] L707-->L710: Formula: (= v_~x~0_4 1) InVars {} OutVars{~x~0=v_~x~0_4} AuxVars[] AssignedVars[~x~0] 220#[L710, L845-3]don't care [447] L710-->L713: Formula: (= v_~y~0_15 |v_thr1Thread1of1ForFork1_~y1~0#1_1|) InVars {~y~0=v_~y~0_15} OutVars{~y~0=v_~y~0_15, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~y1~0#1] 252#[L713, L845-3]don't care [451] L713-->L715: Formula: (not (= |v_thr1Thread1of1ForFork1_~y1~0#1_3| 0)) InVars {thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_3|} OutVars{thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_3|} AuxVars[] AssignedVars[] 290#[L715, L845-3]don't care [455] L715-->L717: Formula: (= v_~b1~0_6 0) InVars {} OutVars{~b1~0=v_~b1~0_6} AuxVars[] AssignedVars[~b1~0] 338#[L717, L845-3]don't care [457] L717-->L724: Formula: (= v_~y~0_16 |v_thr1Thread1of1ForFork1_~y1~0#1_7|) InVars {~y~0=v_~y~0_16} OutVars{~y~0=v_~y~0_16, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_7|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~y1~0#1] 398#[L724, L845-3]don't care [460] L724-->L753-1: Formula: (= |v_thr1Thread1of1ForFork1_~y1~0#1_11| 0) InVars {thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_11|} OutVars{thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_11|} AuxVars[] AssignedVars[] 170#[L753-1, L845-3]don't care [2024-02-09 23:12:39,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:39,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1185385107, now seen corresponding path program 1 times [2024-02-09 23:12:39,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:39,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330491056] [2024-02-09 23:12:39,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:39,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:39,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:39,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:39,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2027716720, now seen corresponding path program 1 times [2024-02-09 23:12:39,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:39,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426951191] [2024-02-09 23:12:39,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:39,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:12:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:12:39,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 23:12:39,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426951191] [2024-02-09 23:12:39,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426951191] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 23:12:39,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 23:12:39,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-09 23:12:39,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556643476] [2024-02-09 23:12:39,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 23:12:39,903 INFO L765 eck$LassoCheckResult]: loop already infeasible [2024-02-09 23:12:39,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 23:12:39,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-09 23:12:39,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-02-09 23:12:39,932 INFO L87 Difference]: Start difference. First operand currently 5536 states, but on-demand construction may add more states Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-02-09 23:12:40,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 23:12:40,267 INFO L93 Difference]: Finished difference Result 10403 states and 29841 transitions. [2024-02-09 23:12:40,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10403 states and 29841 transitions. [2024-02-09 23:12:40,370 INFO L131 ngComponentsAnalysis]: Automaton has 654 accepting balls. 6028 [2024-02-09 23:12:40,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10403 states to 8723 states and 25147 transitions. [2024-02-09 23:12:40,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8723 [2024-02-09 23:12:40,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8723 [2024-02-09 23:12:40,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8723 states and 25147 transitions. [2024-02-09 23:12:40,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:12:40,502 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8723 states and 25147 transitions. [2024-02-09 23:12:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8723 states and 25147 transitions. [2024-02-09 23:12:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8723 to 5088. [2024-02-09 23:12:40,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5088 states, 5088 states have (on average 2.917452830188679) internal successors, (14844), 5087 states have internal predecessors, (14844), 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) [2024-02-09 23:12:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5088 states to 5088 states and 14844 transitions. [2024-02-09 23:12:40,772 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5088 states and 14844 transitions. [2024-02-09 23:12:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-09 23:12:40,776 INFO L428 stractBuchiCegarLoop]: Abstraction has 5088 states and 14844 transitions. [2024-02-09 23:12:40,777 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 23:12:40,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5088 states and 14844 transitions. [2024-02-09 23:12:40,892 INFO L131 ngComponentsAnalysis]: Automaton has 345 accepting balls. 3599 [2024-02-09 23:12:40,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:40,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:40,894 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] [2024-02-09 23:12:40,894 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-09 23:12:40,899 INFO L748 eck$LassoCheckResult]: Stem: 22765#[$Ultimate##0]don't care [273] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 22767#[L-1]don't care [280] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 30895#[L12]don't care [320] L12-->L12-1: 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[] 28691#[L12-1]don't care [338] L12-1-->L12-2: 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[] 28693#[L12-2]don't care [336] L12-2-->L12-3: 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[] 27963#[L12-3]don't care [361] L12-3-->L12-4: Formula: (and (= (select |v_#length_2| 2) 10) (= (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[] 27965#[L12-4]don't care [354] L12-4-->L700: Formula: (= v_~x~0_5 0) InVars {} OutVars{~x~0=v_~x~0_5} AuxVars[] AssignedVars[~x~0] 26817#[L700]don't care [296] L700-->L701: Formula: (= v_~y~0_17 0) InVars {} OutVars{~y~0=v_~y~0_17} AuxVars[] AssignedVars[~y~0] 26819#[L701]don't care [366] L701-->L701-1: Formula: (= v_~b1~0_7 0) InVars {} OutVars{~b1~0=v_~b1~0_7} AuxVars[] AssignedVars[~b1~0] 30905#[L701-1]don't care [261] L701-1-->L702: Formula: (= v_~b2~0_7 0) InVars {} OutVars{~b2~0=v_~b2~0_7} AuxVars[] AssignedVars[~b2~0] 26015#[L702]don't care [266] L702-->L-1-1: Formula: (= v_~X~0_7 0) InVars {} OutVars{~X~0=v_~X~0_7} AuxVars[] AssignedVars[~X~0] 25159#[L-1-1]don't care [371] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 25161#[L-1-2]don't care [373] L-1-2-->L844: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#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~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 30655#[L844]don't care [310] L844-->L844-1: 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] 25457#[L844-1]don't care [294] L844-1-->L844-2: 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] 25459#[L844-2]don't care [330] L844-2-->L845: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 26299#[L845]don't care [358] L845-->L845-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 28835#[L845-1]don't care [258] L845-1-->L845-2: 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) (= (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~pre4#1_3|)) |v_#memory_int_3|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|))) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 28837#[L845-2]don't care [485] L845-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork1_#in~_#1.offset_4| 0) (= v_thr1Thread1of1ForFork1_thidvar1_2 0) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork1_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_4|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork1_thidvar1=v_thr1Thread1of1ForFork1_thidvar1_2, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_4|, thr1Thread1of1ForFork1_thidvar0=v_thr1Thread1of1ForFork1_thidvar0_2, thr1Thread1of1ForFork1_#res#1.base=|v_thr1Thread1of1ForFork1_#res#1.base_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_12|, thr1Thread1of1ForFork1_#res#1.offset=|v_thr1Thread1of1ForFork1_#res#1.offset_4|, thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_8|, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_30|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_4|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#in~_#1.base, thr1Thread1of1ForFork1_#in~_#1.offset, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork1_thidvar1, thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_thidvar0, thr1Thread1of1ForFork1_#res#1.base, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr1Thread1of1ForFork1_~b21~0#1, thr1Thread1of1ForFork1_#res#1.offset, thr1Thread1of1ForFork1_~x1~0#1, thr1Thread1of1ForFork1_~y1~0#1, thr1Thread1of1ForFork1_~_#1.base] 29041#[$Ultimate##0, L845-3]don't care [346] L845-3-->L845-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 30265#[$Ultimate##0, L845-4]don't care [272] L845-4-->L846: 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] 30267#[L846, $Ultimate##0]don't care [257] L846-->L846-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 27381#[L846-1, $Ultimate##0]don't care [250] L846-1-->L846-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 27385#[$Ultimate##0, L846-2]don't care [271] L846-2-->L846-3: 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) (= (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~pre6#1_3|)) |v_#memory_int_5|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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] 30875#[$Ultimate##0, L846-3]don't care [482] L846-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork0_thidvar2_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork0_thidvar0_2) (= v_thr2Thread1of1ForFork0_thidvar1_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.base_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_12|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork0_#res#1.offset=|v_thr2Thread1of1ForFork0_#res#1.offset_4|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_4|, thr2Thread1of1ForFork0_~x2~0#1=|v_thr2Thread1of1ForFork0_~x2~0#1_8|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_4|, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_30|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork0_thidvar0=v_thr2Thread1of1ForFork0_thidvar0_2, thr2Thread1of1ForFork0_thidvar1=v_thr2Thread1of1ForFork0_thidvar1_2, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_4|, thr2Thread1of1ForFork0_thidvar2=v_thr2Thread1of1ForFork0_thidvar2_2, thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_4|, thr2Thread1of1ForFork0_#res#1.base=|v_thr2Thread1of1ForFork0_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~b12~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork0_#res#1.offset, thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~x2~0#1, thr2Thread1of1ForFork0_#in~_#1.offset, thr2Thread1of1ForFork0_~y2~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork0_thidvar0, thr2Thread1of1ForFork0_thidvar1, thr2Thread1of1ForFork0_#in~_#1.base, thr2Thread1of1ForFork0_thidvar2, thr2Thread1of1ForFork0_~_#1.offset, thr2Thread1of1ForFork0_#res#1.base] 28305#[$Ultimate##0, L846-4, $Ultimate##0]don't care [384] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr2Thread1of1ForFork0_~_#1.base_1| |v_thr2Thread1of1ForFork0_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork0_~_#1.offset_1| |v_thr2Thread1of1ForFork0_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_1|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_1|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~_#1.offset] 28307#[$Ultimate##3, $Ultimate##0, L846-4]don't care [386] $Ultimate##3-->L823-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 30693#[L823-1, $Ultimate##0, L846-4]don't care [2024-02-09 23:12:40,899 INFO L750 eck$LassoCheckResult]: Loop: 30693#[L823-1, $Ultimate##0, L846-4]don't care [388] L823-1-->L775: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 23185#[$Ultimate##0, L846-4, L775]don't care [392] L775-->L777: Formula: (= v_~b2~0_1 1) InVars {} OutVars{~b2~0=v_~b2~0_1} AuxVars[] AssignedVars[~b2~0] 23191#[$Ultimate##0, L777, L846-4]don't care [395] L777-->L780: Formula: (= 2 v_~x~0_1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] 30867#[L780, $Ultimate##0, L846-4]don't care [399] L780-->L783: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_1| v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~y2~0#1] 30707#[$Ultimate##0, L783, L846-4]don't care [403] L783-->L785: Formula: (not (= |v_thr2Thread1of1ForFork0_~y2~0#1_3| 0)) InVars {thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_3|} OutVars{thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_3|} AuxVars[] AssignedVars[] 30709#[$Ultimate##0, L785, L846-4]don't care [407] L785-->L787: Formula: (= v_~b2~0_2 0) InVars {} OutVars{~b2~0=v_~b2~0_2} AuxVars[] AssignedVars[~b2~0] 26151#[$Ultimate##0, L846-4, L787]don't care [409] L787-->L794: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_7| v_~y~0_3) InVars {~y~0=v_~y~0_3} OutVars{~y~0=v_~y~0_3, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_7|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~y2~0#1] 24623#[L794, $Ultimate##0, L846-4]don't care [412] L794-->L823-1: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_11| 0) InVars {thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_11|} OutVars{thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_11|} AuxVars[] AssignedVars[] 30693#[L823-1, $Ultimate##0, L846-4]don't care [2024-02-09 23:12:40,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:40,912 INFO L85 PathProgramCache]: Analyzing trace with hash 2079341359, now seen corresponding path program 1 times [2024-02-09 23:12:40,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:40,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214768390] [2024-02-09 23:12:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:40,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:40,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:40,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:40,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:40,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1093310352, now seen corresponding path program 1 times [2024-02-09 23:12:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:40,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526139719] [2024-02-09 23:12:40,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:40,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:12:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:12:41,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 23:12:41,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526139719] [2024-02-09 23:12:41,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526139719] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 23:12:41,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 23:12:41,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-09 23:12:41,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090754523] [2024-02-09 23:12:41,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 23:12:41,012 INFO L765 eck$LassoCheckResult]: loop already infeasible [2024-02-09 23:12:41,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 23:12:41,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-09 23:12:41,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-02-09 23:12:41,013 INFO L87 Difference]: Start difference. First operand 5088 states and 14844 transitions. cyclomatic complexity: 10101 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-02-09 23:12:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 23:12:41,185 INFO L93 Difference]: Finished difference Result 7570 states and 21385 transitions. [2024-02-09 23:12:41,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7570 states and 21385 transitions. [2024-02-09 23:12:41,252 INFO L131 ngComponentsAnalysis]: Automaton has 1074 accepting balls. 2220 [2024-02-09 23:12:41,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7570 states to 7570 states and 21385 transitions. [2024-02-09 23:12:41,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7570 [2024-02-09 23:12:41,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7570 [2024-02-09 23:12:41,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7570 states and 21385 transitions. [2024-02-09 23:12:41,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:12:41,440 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7570 states and 21385 transitions. [2024-02-09 23:12:41,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states and 21385 transitions. [2024-02-09 23:12:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 5241. [2024-02-09 23:12:41,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5241 states have (on average 2.842205685937798) internal successors, (14896), 5240 states have internal predecessors, (14896), 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) [2024-02-09 23:12:41,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 14896 transitions. [2024-02-09 23:12:41,581 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5241 states and 14896 transitions. [2024-02-09 23:12:41,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-09 23:12:41,582 INFO L428 stractBuchiCegarLoop]: Abstraction has 5241 states and 14896 transitions. [2024-02-09 23:12:41,582 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 23:12:41,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5241 states and 14896 transitions. [2024-02-09 23:12:41,605 INFO L131 ngComponentsAnalysis]: Automaton has 786 accepting balls. 1644 [2024-02-09 23:12:41,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:41,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:41,606 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] [2024-02-09 23:12:41,606 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:12:41,606 INFO L748 eck$LassoCheckResult]: Stem: 40495#[$Ultimate##0]don't care [273] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 40497#[L-1]don't care [280] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 48647#[L12]don't care [320] L12-->L12-1: 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[] 46415#[L12-1]don't care [338] L12-1-->L12-2: 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[] 46417#[L12-2]don't care [336] L12-2-->L12-3: 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[] 45653#[L12-3]don't care [361] L12-3-->L12-4: Formula: (and (= (select |v_#length_2| 2) 10) (= (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[] 45655#[L12-4]don't care [354] L12-4-->L700: Formula: (= v_~x~0_5 0) InVars {} OutVars{~x~0=v_~x~0_5} AuxVars[] AssignedVars[~x~0] 44495#[L700]don't care [296] L700-->L701: Formula: (= v_~y~0_17 0) InVars {} OutVars{~y~0=v_~y~0_17} AuxVars[] AssignedVars[~y~0] 44497#[L701]don't care [366] L701-->L701-1: Formula: (= v_~b1~0_7 0) InVars {} OutVars{~b1~0=v_~b1~0_7} AuxVars[] AssignedVars[~b1~0] 48659#[L701-1]don't care [261] L701-1-->L702: Formula: (= v_~b2~0_7 0) InVars {} OutVars{~b2~0=v_~b2~0_7} AuxVars[] AssignedVars[~b2~0] 43713#[L702]don't care [266] L702-->L-1-1: Formula: (= v_~X~0_7 0) InVars {} OutVars{~X~0=v_~X~0_7} AuxVars[] AssignedVars[~X~0] 42865#[L-1-1]don't care [371] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 42867#[L-1-2]don't care [373] L-1-2-->L844: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#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~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 48399#[L844]don't care [310] L844-->L844-1: 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] 43153#[L844-1]don't care [294] L844-1-->L844-2: 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] 43155#[L844-2]don't care [330] L844-2-->L845: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 44005#[L845]don't care [358] L845-->L845-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 46567#[L845-1]don't care [258] L845-1-->L845-2: 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) (= (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~pre4#1_3|)) |v_#memory_int_3|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|))) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 46569#[L845-2]don't care [485] L845-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork1_#in~_#1.offset_4| 0) (= v_thr1Thread1of1ForFork1_thidvar1_2 0) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork1_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_4|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork1_thidvar1=v_thr1Thread1of1ForFork1_thidvar1_2, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_4|, thr1Thread1of1ForFork1_thidvar0=v_thr1Thread1of1ForFork1_thidvar0_2, thr1Thread1of1ForFork1_#res#1.base=|v_thr1Thread1of1ForFork1_#res#1.base_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_12|, thr1Thread1of1ForFork1_#res#1.offset=|v_thr1Thread1of1ForFork1_#res#1.offset_4|, thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_8|, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_30|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_4|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#in~_#1.base, thr1Thread1of1ForFork1_#in~_#1.offset, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork1_thidvar1, thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_thidvar0, thr1Thread1of1ForFork1_#res#1.base, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr1Thread1of1ForFork1_~b21~0#1, thr1Thread1of1ForFork1_#res#1.offset, thr1Thread1of1ForFork1_~x1~0#1, thr1Thread1of1ForFork1_~y1~0#1, thr1Thread1of1ForFork1_~_#1.base] 46761#[$Ultimate##0, L845-3]don't care [432] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr1Thread1of1ForFork1_~_#1.offset_1| |v_thr1Thread1of1ForFork1_#in~_#1.offset_1|) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_1| |v_thr1Thread1of1ForFork1_~_#1.base_1|)) InVars {thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_~_#1.base] 40985#[$Ultimate##3, L845-3]don't care [434] $Ultimate##3-->L753-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 40987#[L753-1, L845-3]don't care [436] L753-1-->L705: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 45999#[L705, L845-3]don't care [440] L705-->L707: Formula: (= v_~b1~0_5 1) InVars {} OutVars{~b1~0=v_~b1~0_5} AuxVars[] AssignedVars[~b1~0] 44759#[L707, L845-3]don't care [443] L707-->L710: Formula: (= v_~x~0_4 1) InVars {} OutVars{~x~0=v_~x~0_4} AuxVars[] AssignedVars[~x~0] 43553#[L710, L845-3]don't care [447] L710-->L713: Formula: (= v_~y~0_15 |v_thr1Thread1of1ForFork1_~y1~0#1_1|) InVars {~y~0=v_~y~0_15} OutVars{~y~0=v_~y~0_15, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~y1~0#1] 43555#[L713, L845-3]don't care [451] L713-->L715: Formula: (not (= |v_thr1Thread1of1ForFork1_~y1~0#1_3| 0)) InVars {thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_3|} OutVars{thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_3|} AuxVars[] AssignedVars[] 44897#[L715, L845-3]don't care [455] L715-->L717: Formula: (= v_~b1~0_6 0) InVars {} OutVars{~b1~0=v_~b1~0_6} AuxVars[] AssignedVars[~b1~0] 48001#[L717, L845-3]don't care [457] L717-->L724: Formula: (= v_~y~0_16 |v_thr1Thread1of1ForFork1_~y1~0#1_7|) InVars {~y~0=v_~y~0_16} OutVars{~y~0=v_~y~0_16, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_7|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~y1~0#1] 47933#[L724, L845-3]don't care [2024-02-09 23:12:41,607 INFO L750 eck$LassoCheckResult]: Loop: 47933#[L724, L845-3]don't care [459] L724-->L722: Formula: (not (= |v_thr1Thread1of1ForFork1_~y1~0#1_9| 0)) InVars {thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_9|} OutVars{thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_9|} AuxVars[] AssignedVars[] 47931#[L722, L845-3]don't care [464] L722-->L724: Formula: (= |v_thr1Thread1of1ForFork1_~y1~0#1_13| v_~y~0_9) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_13|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~y1~0#1] 47933#[L724, L845-3]don't care [2024-02-09 23:12:41,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:41,607 INFO L85 PathProgramCache]: Analyzing trace with hash -667945488, now seen corresponding path program 1 times [2024-02-09 23:12:41,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:41,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618839751] [2024-02-09 23:12:41,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:41,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:12:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:12:41,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 23:12:41,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618839751] [2024-02-09 23:12:41,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618839751] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 23:12:41,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 23:12:41,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-09 23:12:41,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734753282] [2024-02-09 23:12:41,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 23:12:41,740 INFO L753 eck$LassoCheckResult]: stem already infeasible [2024-02-09 23:12:41,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:41,741 INFO L85 PathProgramCache]: Analyzing trace with hash 15654, now seen corresponding path program 1 times [2024-02-09 23:12:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:41,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987311759] [2024-02-09 23:12:41,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:41,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:41,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:41,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 23:12:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-09 23:12:41,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-09 23:12:41,771 INFO L87 Difference]: Start difference. First operand 5241 states and 14896 transitions. cyclomatic complexity: 10441 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-02-09 23:12:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 23:12:41,911 INFO L93 Difference]: Finished difference Result 6567 states and 18170 transitions. [2024-02-09 23:12:41,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6567 states and 18170 transitions. [2024-02-09 23:12:41,945 INFO L131 ngComponentsAnalysis]: Automaton has 898 accepting balls. 1860 [2024-02-09 23:12:41,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6567 states to 6567 states and 18170 transitions. [2024-02-09 23:12:41,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6567 [2024-02-09 23:12:41,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6567 [2024-02-09 23:12:41,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6567 states and 18170 transitions. [2024-02-09 23:12:41,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:12:41,993 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6567 states and 18170 transitions. [2024-02-09 23:12:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6567 states and 18170 transitions. [2024-02-09 23:12:42,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6567 to 4945. [2024-02-09 23:12:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4945 states, 4945 states have (on average 2.8137512639029323) internal successors, (13914), 4944 states have internal predecessors, (13914), 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) [2024-02-09 23:12:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4945 states to 4945 states and 13914 transitions. [2024-02-09 23:12:42,199 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4945 states and 13914 transitions. [2024-02-09 23:12:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-09 23:12:42,200 INFO L428 stractBuchiCegarLoop]: Abstraction has 4945 states and 13914 transitions. [2024-02-09 23:12:42,200 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-02-09 23:12:42,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4945 states and 13914 transitions. [2024-02-09 23:12:42,216 INFO L131 ngComponentsAnalysis]: Automaton has 712 accepting balls. 1488 [2024-02-09 23:12:42,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:42,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:42,217 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] [2024-02-09 23:12:42,217 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:12:42,218 INFO L748 eck$LassoCheckResult]: Stem: 57497#[$Ultimate##0]don't care [273] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 57499#[L-1]don't care [280] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 65283#[L12]don't care [320] L12-->L12-1: 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[] 63097#[L12-1]don't care [338] L12-1-->L12-2: 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[] 63099#[L12-2]don't care [336] L12-2-->L12-3: 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[] 62379#[L12-3]don't care [361] L12-3-->L12-4: Formula: (and (= (select |v_#length_2| 2) 10) (= (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[] 62381#[L12-4]don't care [354] L12-4-->L700: Formula: (= v_~x~0_5 0) InVars {} OutVars{~x~0=v_~x~0_5} AuxVars[] AssignedVars[~x~0] 61267#[L700]don't care [296] L700-->L701: Formula: (= v_~y~0_17 0) InVars {} OutVars{~y~0=v_~y~0_17} AuxVars[] AssignedVars[~y~0] 61269#[L701]don't care [366] L701-->L701-1: Formula: (= v_~b1~0_7 0) InVars {} OutVars{~b1~0=v_~b1~0_7} AuxVars[] AssignedVars[~b1~0] 65293#[L701-1]don't care [261] L701-1-->L702: Formula: (= v_~b2~0_7 0) InVars {} OutVars{~b2~0=v_~b2~0_7} AuxVars[] AssignedVars[~b2~0] 60505#[L702]don't care [266] L702-->L-1-1: Formula: (= v_~X~0_7 0) InVars {} OutVars{~X~0=v_~X~0_7} AuxVars[] AssignedVars[~X~0] 59741#[L-1-1]don't care [371] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 59743#[L-1-2]don't care [373] L-1-2-->L844: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#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~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 65035#[L844]don't care [310] L844-->L844-1: 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] 59997#[L844-1]don't care [294] L844-1-->L844-2: 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] 59999#[L844-2]don't care [330] L844-2-->L845: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 60789#[L845]don't care [358] L845-->L845-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 63237#[L845-1]don't care [258] L845-1-->L845-2: 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) (= (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~pre4#1_3|)) |v_#memory_int_3|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|))) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 63239#[L845-2]don't care [485] L845-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork1_#in~_#1.offset_4| 0) (= v_thr1Thread1of1ForFork1_thidvar1_2 0) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork1_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_4|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork1_thidvar1=v_thr1Thread1of1ForFork1_thidvar1_2, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_4|, thr1Thread1of1ForFork1_thidvar0=v_thr1Thread1of1ForFork1_thidvar0_2, thr1Thread1of1ForFork1_#res#1.base=|v_thr1Thread1of1ForFork1_#res#1.base_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_12|, thr1Thread1of1ForFork1_#res#1.offset=|v_thr1Thread1of1ForFork1_#res#1.offset_4|, thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_8|, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_30|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_4|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#in~_#1.base, thr1Thread1of1ForFork1_#in~_#1.offset, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork1_thidvar1, thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_thidvar0, thr1Thread1of1ForFork1_#res#1.base, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr1Thread1of1ForFork1_~b21~0#1, thr1Thread1of1ForFork1_#res#1.offset, thr1Thread1of1ForFork1_~x1~0#1, thr1Thread1of1ForFork1_~y1~0#1, thr1Thread1of1ForFork1_~_#1.base] 63421#[$Ultimate##0, L845-3]don't care [432] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr1Thread1of1ForFork1_~_#1.offset_1| |v_thr1Thread1of1ForFork1_#in~_#1.offset_1|) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_1| |v_thr1Thread1of1ForFork1_~_#1.base_1|)) InVars {thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_~_#1.base] 57953#[$Ultimate##3, L845-3]don't care [434] $Ultimate##3-->L753-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 57955#[L753-1, L845-3]don't care [436] L753-1-->L705: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 62709#[L705, L845-3]don't care [440] L705-->L707: Formula: (= v_~b1~0_5 1) InVars {} OutVars{~b1~0=v_~b1~0_5} AuxVars[] AssignedVars[~b1~0] 61527#[L707, L845-3]don't care [443] L707-->L710: Formula: (= v_~x~0_4 1) InVars {} OutVars{~x~0=v_~x~0_4} AuxVars[] AssignedVars[~x~0] 60357#[L710, L845-3]don't care [447] L710-->L713: Formula: (= v_~y~0_15 |v_thr1Thread1of1ForFork1_~y1~0#1_1|) InVars {~y~0=v_~y~0_15} OutVars{~y~0=v_~y~0_15, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~y1~0#1] 60359#[L713, L845-3]don't care [452] L713-->L728: Formula: (= |v_thr1Thread1of1ForFork1_~y1~0#1_5| 0) InVars {thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_5|} OutVars{thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_5|} AuxVars[] AssignedVars[] 61665#[L728, L845-3]don't care [456] L728-->L730: Formula: (= v_~y~0_10 1) InVars {} OutVars{~y~0=v_~y~0_10} AuxVars[] AssignedVars[~y~0] 61115#[L730, L845-3]don't care [458] L730-->L733: Formula: (= |v_thr1Thread1of1ForFork1_~x1~0#1_1| v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_1|, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~x1~0#1] 61117#[L733, L845-3]don't care [462] L733-->L735: Formula: (not (= |v_thr1Thread1of1ForFork1_~x1~0#1_3| 1)) InVars {thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_3|} OutVars{thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_3|} AuxVars[] AssignedVars[] 64297#[L735, L845-3]don't care [465] L735-->L737: Formula: (= v_~b1~0_4 0) InVars {} OutVars{~b1~0=v_~b1~0_4} AuxVars[] AssignedVars[~b1~0] 64299#[L737, L845-3]don't care [466] L737-->L744: Formula: (= v_~b2~0_5 |v_thr1Thread1of1ForFork1_~b21~0#1_1|) InVars {~b2~0=v_~b2~0_5} OutVars{~b2~0=v_~b2~0_5, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~b21~0#1] 62801#[L744, L845-3]don't care [2024-02-09 23:12:42,218 INFO L750 eck$LassoCheckResult]: Loop: 62801#[L744, L845-3]don't care [467] L744-->L742: Formula: (<= 1 |v_thr1Thread1of1ForFork1_~b21~0#1_3|) InVars {thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_3|} OutVars{thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_3|} AuxVars[] AssignedVars[] 62803#[L742, L845-3]don't care [470] L742-->L744: Formula: (= v_~b2~0_6 |v_thr1Thread1of1ForFork1_~b21~0#1_7|) InVars {~b2~0=v_~b2~0_6} OutVars{~b2~0=v_~b2~0_6, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_7|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~b21~0#1] 62801#[L744, L845-3]don't care [2024-02-09 23:12:42,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash -150509314, now seen corresponding path program 1 times [2024-02-09 23:12:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:42,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258724378] [2024-02-09 23:12:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:42,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:12:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:12:42,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 23:12:42,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258724378] [2024-02-09 23:12:42,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258724378] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 23:12:42,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 23:12:42,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-09 23:12:42,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548610219] [2024-02-09 23:12:42,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 23:12:42,253 INFO L753 eck$LassoCheckResult]: stem already infeasible [2024-02-09 23:12:42,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash 15908, now seen corresponding path program 1 times [2024-02-09 23:12:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:42,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837443817] [2024-02-09 23:12:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:42,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:42,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:42,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 23:12:42,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-09 23:12:42,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-09 23:12:42,278 INFO L87 Difference]: Start difference. First operand 4945 states and 13914 transitions. cyclomatic complexity: 9681 Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-02-09 23:12:42,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 23:12:42,326 INFO L93 Difference]: Finished difference Result 8265 states and 22851 transitions. [2024-02-09 23:12:42,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8265 states and 22851 transitions. [2024-02-09 23:12:42,374 INFO L131 ngComponentsAnalysis]: Automaton has 1108 accepting balls. 2296 [2024-02-09 23:12:42,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8265 states to 7625 states and 21151 transitions. [2024-02-09 23:12:42,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7625 [2024-02-09 23:12:42,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7625 [2024-02-09 23:12:42,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7625 states and 21151 transitions. [2024-02-09 23:12:42,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:12:42,500 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7625 states and 21151 transitions. [2024-02-09 23:12:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7625 states and 21151 transitions. [2024-02-09 23:12:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7625 to 4785. [2024-02-09 23:12:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4785 states, 4785 states have (on average 2.8173458725182865) internal successors, (13481), 4784 states have internal predecessors, (13481), 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) [2024-02-09 23:12:42,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4785 states to 4785 states and 13481 transitions. [2024-02-09 23:12:42,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4785 states and 13481 transitions. [2024-02-09 23:12:42,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-09 23:12:42,620 INFO L428 stractBuchiCegarLoop]: Abstraction has 4785 states and 13481 transitions. [2024-02-09 23:12:42,620 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-02-09 23:12:42,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4785 states and 13481 transitions. [2024-02-09 23:12:42,643 INFO L131 ngComponentsAnalysis]: Automaton has 716 accepting balls. 1496 [2024-02-09 23:12:42,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:42,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:42,646 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] [2024-02-09 23:12:42,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:12:42,650 INFO L748 eck$LassoCheckResult]: Stem: 75553#[$Ultimate##0]don't care [273] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 75555#[L-1]don't care [280] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 82403#[L12]don't care [320] L12-->L12-1: 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[] 80509#[L12-1]don't care [338] L12-1-->L12-2: 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[] 80511#[L12-2]don't care [336] L12-2-->L12-3: 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[] 79865#[L12-3]don't care [361] L12-3-->L12-4: Formula: (and (= (select |v_#length_2| 2) 10) (= (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[] 79867#[L12-4]don't care [354] L12-4-->L700: Formula: (= v_~x~0_5 0) InVars {} OutVars{~x~0=v_~x~0_5} AuxVars[] AssignedVars[~x~0] 78873#[L700]don't care [296] L700-->L701: Formula: (= v_~y~0_17 0) InVars {} OutVars{~y~0=v_~y~0_17} AuxVars[] AssignedVars[~y~0] 78875#[L701]don't care [366] L701-->L701-1: Formula: (= v_~b1~0_7 0) InVars {} OutVars{~b1~0=v_~b1~0_7} AuxVars[] AssignedVars[~b1~0] 82407#[L701-1]don't care [261] L701-1-->L702: Formula: (= v_~b2~0_7 0) InVars {} OutVars{~b2~0=v_~b2~0_7} AuxVars[] AssignedVars[~b2~0] 78207#[L702]don't care [266] L702-->L-1-1: Formula: (= v_~X~0_7 0) InVars {} OutVars{~X~0=v_~X~0_7} AuxVars[] AssignedVars[~X~0] 77547#[L-1-1]don't care [371] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 77549#[L-1-2]don't care [373] L-1-2-->L844: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#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~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 82189#[L844]don't care [310] L844-->L844-1: 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] 77783#[L844-1]don't care [294] L844-1-->L844-2: 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] 77785#[L844-2]don't care [330] L844-2-->L845: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 78431#[L845]don't care [358] L845-->L845-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 80625#[L845-1]don't care [258] L845-1-->L845-2: 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) (= (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~pre4#1_3|)) |v_#memory_int_3|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|))) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 80627#[L845-2]don't care [485] L845-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork1_#in~_#1.offset_4| 0) (= v_thr1Thread1of1ForFork1_thidvar1_2 0) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork1_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_4|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork1_thidvar1=v_thr1Thread1of1ForFork1_thidvar1_2, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_4|, thr1Thread1of1ForFork1_thidvar0=v_thr1Thread1of1ForFork1_thidvar0_2, thr1Thread1of1ForFork1_#res#1.base=|v_thr1Thread1of1ForFork1_#res#1.base_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_12|, thr1Thread1of1ForFork1_#res#1.offset=|v_thr1Thread1of1ForFork1_#res#1.offset_4|, thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_8|, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_30|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_4|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#in~_#1.base, thr1Thread1of1ForFork1_#in~_#1.offset, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork1_thidvar1, thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_thidvar0, thr1Thread1of1ForFork1_#res#1.base, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr1Thread1of1ForFork1_~b21~0#1, thr1Thread1of1ForFork1_#res#1.offset, thr1Thread1of1ForFork1_~x1~0#1, thr1Thread1of1ForFork1_~y1~0#1, thr1Thread1of1ForFork1_~_#1.base] 80811#[$Ultimate##0, L845-3]don't care [346] L845-3-->L845-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 81869#[$Ultimate##0, L845-4]don't care [272] L845-4-->L846: 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] 81871#[L846, $Ultimate##0]don't care [257] L846-->L846-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 79373#[L846-1, $Ultimate##0]don't care [250] L846-1-->L846-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 79377#[$Ultimate##0, L846-2]don't care [271] L846-2-->L846-3: 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) (= (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~pre6#1_3|)) |v_#memory_int_5|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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] 82377#[$Ultimate##0, L846-3]don't care [482] L846-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork0_thidvar2_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork0_thidvar0_2) (= v_thr2Thread1of1ForFork0_thidvar1_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.base_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_12|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork0_#res#1.offset=|v_thr2Thread1of1ForFork0_#res#1.offset_4|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_4|, thr2Thread1of1ForFork0_~x2~0#1=|v_thr2Thread1of1ForFork0_~x2~0#1_8|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_4|, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_30|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork0_thidvar0=v_thr2Thread1of1ForFork0_thidvar0_2, thr2Thread1of1ForFork0_thidvar1=v_thr2Thread1of1ForFork0_thidvar1_2, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_4|, thr2Thread1of1ForFork0_thidvar2=v_thr2Thread1of1ForFork0_thidvar2_2, thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_4|, thr2Thread1of1ForFork0_#res#1.base=|v_thr2Thread1of1ForFork0_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~b12~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork0_#res#1.offset, thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~x2~0#1, thr2Thread1of1ForFork0_#in~_#1.offset, thr2Thread1of1ForFork0_~y2~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork0_thidvar0, thr2Thread1of1ForFork0_thidvar1, thr2Thread1of1ForFork0_#in~_#1.base, thr2Thread1of1ForFork0_thidvar2, thr2Thread1of1ForFork0_~_#1.offset, thr2Thread1of1ForFork0_#res#1.base] 80181#[$Ultimate##0, L846-4, $Ultimate##0]don't care [384] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr2Thread1of1ForFork0_~_#1.base_1| |v_thr2Thread1of1ForFork0_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork0_~_#1.offset_1| |v_thr2Thread1of1ForFork0_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_1|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_1|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~_#1.offset] 80183#[$Ultimate##3, $Ultimate##0, L846-4]don't care [386] $Ultimate##3-->L823-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 82227#[L823-1, $Ultimate##0, L846-4]don't care [388] L823-1-->L775: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 75911#[$Ultimate##0, L846-4, L775]don't care [392] L775-->L777: Formula: (= v_~b2~0_1 1) InVars {} OutVars{~b2~0=v_~b2~0_1} AuxVars[] AssignedVars[~b2~0] 75917#[$Ultimate##0, L777, L846-4]don't care [395] L777-->L780: Formula: (= 2 v_~x~0_1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] 82371#[L780, $Ultimate##0, L846-4]don't care [399] L780-->L783: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_1| v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~y2~0#1] 82233#[$Ultimate##0, L783, L846-4]don't care [403] L783-->L785: Formula: (not (= |v_thr2Thread1of1ForFork0_~y2~0#1_3| 0)) InVars {thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_3|} OutVars{thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_3|} AuxVars[] AssignedVars[] 82235#[$Ultimate##0, L785, L846-4]don't care [407] L785-->L787: Formula: (= v_~b2~0_2 0) InVars {} OutVars{~b2~0=v_~b2~0_2} AuxVars[] AssignedVars[~b2~0] 78311#[$Ultimate##0, L846-4, L787]don't care [409] L787-->L794: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_7| v_~y~0_3) InVars {~y~0=v_~y~0_3} OutVars{~y~0=v_~y~0_3, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_7|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~y2~0#1] 77103#[L794, $Ultimate##0, L846-4]don't care [2024-02-09 23:12:42,651 INFO L750 eck$LassoCheckResult]: Loop: 77103#[L794, $Ultimate##0, L846-4]don't care [411] L794-->L792: Formula: (not (= |v_thr2Thread1of1ForFork0_~y2~0#1_9| 0)) InVars {thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_9|} OutVars{thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_9|} AuxVars[] AssignedVars[] 77099#[$Ultimate##0, L846-4, L792]don't care [416] L792-->L794: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_13| v_~y~0_4) InVars {~y~0=v_~y~0_4} OutVars{~y~0=v_~y~0_4, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_13|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~y2~0#1] 77103#[L794, $Ultimate##0, L846-4]don't care [2024-02-09 23:12:42,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:42,652 INFO L85 PathProgramCache]: Analyzing trace with hash 236315582, now seen corresponding path program 1 times [2024-02-09 23:12:42,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:42,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40514355] [2024-02-09 23:12:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:42,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:12:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:12:42,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 23:12:42,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40514355] [2024-02-09 23:12:42,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40514355] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 23:12:42,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 23:12:42,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-09 23:12:42,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519335226] [2024-02-09 23:12:42,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 23:12:42,699 INFO L753 eck$LassoCheckResult]: stem already infeasible [2024-02-09 23:12:42,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:42,699 INFO L85 PathProgramCache]: Analyzing trace with hash 14118, now seen corresponding path program 1 times [2024-02-09 23:12:42,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:42,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583691648] [2024-02-09 23:12:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:42,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:42,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:42,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:42,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 23:12:42,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-09 23:12:42,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-09 23:12:42,804 INFO L87 Difference]: Start difference. First operand 4785 states and 13481 transitions. cyclomatic complexity: 9412 Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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) [2024-02-09 23:12:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 23:12:42,871 INFO L93 Difference]: Finished difference Result 5555 states and 15286 transitions. [2024-02-09 23:12:42,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5555 states and 15286 transitions. [2024-02-09 23:12:42,895 INFO L131 ngComponentsAnalysis]: Automaton has 773 accepting balls. 1610 [2024-02-09 23:12:42,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5555 states to 5555 states and 15286 transitions. [2024-02-09 23:12:42,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5555 [2024-02-09 23:12:42,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5555 [2024-02-09 23:12:42,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5555 states and 15286 transitions. [2024-02-09 23:12:42,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:12:42,924 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5555 states and 15286 transitions. [2024-02-09 23:12:42,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states and 15286 transitions. [2024-02-09 23:12:42,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 4514. [2024-02-09 23:12:42,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4514 states, 4514 states have (on average 2.784005316792202) internal successors, (12567), 4513 states have internal predecessors, (12567), 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) [2024-02-09 23:12:43,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4514 states to 4514 states and 12567 transitions. [2024-02-09 23:12:43,001 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4514 states and 12567 transitions. [2024-02-09 23:12:43,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-09 23:12:43,002 INFO L428 stractBuchiCegarLoop]: Abstraction has 4514 states and 12567 transitions. [2024-02-09 23:12:43,002 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-02-09 23:12:43,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4514 states and 12567 transitions. [2024-02-09 23:12:43,021 INFO L131 ngComponentsAnalysis]: Automaton has 653 accepting balls. 1370 [2024-02-09 23:12:43,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:43,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:43,022 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, 1, 1] [2024-02-09 23:12:43,022 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:12:43,023 INFO L748 eck$LassoCheckResult]: Stem: 90631#[$Ultimate##0]don't care [273] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 90633#[L-1]don't care [280] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 97335#[L12]don't care [320] L12-->L12-1: 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[] 95449#[L12-1]don't care [338] L12-1-->L12-2: 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[] 95451#[L12-2]don't care [336] L12-2-->L12-3: 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[] 94839#[L12-3]don't care [361] L12-3-->L12-4: Formula: (and (= (select |v_#length_2| 2) 10) (= (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[] 94841#[L12-4]don't care [354] L12-4-->L700: Formula: (= v_~x~0_5 0) InVars {} OutVars{~x~0=v_~x~0_5} AuxVars[] AssignedVars[~x~0] 93869#[L700]don't care [296] L700-->L701: Formula: (= v_~y~0_17 0) InVars {} OutVars{~y~0=v_~y~0_17} AuxVars[] AssignedVars[~y~0] 93871#[L701]don't care [366] L701-->L701-1: Formula: (= v_~b1~0_7 0) InVars {} OutVars{~b1~0=v_~b1~0_7} AuxVars[] AssignedVars[~b1~0] 97343#[L701-1]don't care [261] L701-1-->L702: Formula: (= v_~b2~0_7 0) InVars {} OutVars{~b2~0=v_~b2~0_7} AuxVars[] AssignedVars[~b2~0] 93217#[L702]don't care [266] L702-->L-1-1: Formula: (= v_~X~0_7 0) InVars {} OutVars{~X~0=v_~X~0_7} AuxVars[] AssignedVars[~X~0] 92567#[L-1-1]don't care [371] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 92569#[L-1-2]don't care [373] L-1-2-->L844: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#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~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 97099#[L844]don't care [310] L844-->L844-1: 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] 92799#[L844-1]don't care [294] L844-1-->L844-2: 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] 92801#[L844-2]don't care [330] L844-2-->L845: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 93435#[L845]don't care [358] L845-->L845-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 95561#[L845-1]don't care [258] L845-1-->L845-2: 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) (= (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~pre4#1_3|)) |v_#memory_int_3|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|))) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 95563#[L845-2]don't care [485] L845-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork1_#in~_#1.offset_4| 0) (= v_thr1Thread1of1ForFork1_thidvar1_2 0) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork1_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_4|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork1_thidvar1=v_thr1Thread1of1ForFork1_thidvar1_2, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_4|, thr1Thread1of1ForFork1_thidvar0=v_thr1Thread1of1ForFork1_thidvar0_2, thr1Thread1of1ForFork1_#res#1.base=|v_thr1Thread1of1ForFork1_#res#1.base_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_12|, thr1Thread1of1ForFork1_#res#1.offset=|v_thr1Thread1of1ForFork1_#res#1.offset_4|, thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_8|, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_30|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_4|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#in~_#1.base, thr1Thread1of1ForFork1_#in~_#1.offset, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork1_thidvar1, thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_thidvar0, thr1Thread1of1ForFork1_#res#1.base, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr1Thread1of1ForFork1_~b21~0#1, thr1Thread1of1ForFork1_#res#1.offset, thr1Thread1of1ForFork1_~x1~0#1, thr1Thread1of1ForFork1_~y1~0#1, thr1Thread1of1ForFork1_~_#1.base] 95743#[$Ultimate##0, L845-3]don't care [346] L845-3-->L845-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 96767#[$Ultimate##0, L845-4]don't care [272] L845-4-->L846: 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] 96769#[L846, $Ultimate##0]don't care [257] L846-->L846-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 94359#[L846-1, $Ultimate##0]don't care [250] L846-1-->L846-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 94363#[$Ultimate##0, L846-2]don't care [271] L846-2-->L846-3: 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) (= (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~pre6#1_3|)) |v_#memory_int_5|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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] 97293#[$Ultimate##0, L846-3]don't care [482] L846-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork0_thidvar2_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork0_thidvar0_2) (= v_thr2Thread1of1ForFork0_thidvar1_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.base_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_12|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork0_#res#1.offset=|v_thr2Thread1of1ForFork0_#res#1.offset_4|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_4|, thr2Thread1of1ForFork0_~x2~0#1=|v_thr2Thread1of1ForFork0_~x2~0#1_8|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_4|, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_30|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork0_thidvar0=v_thr2Thread1of1ForFork0_thidvar0_2, thr2Thread1of1ForFork0_thidvar1=v_thr2Thread1of1ForFork0_thidvar1_2, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_4|, thr2Thread1of1ForFork0_thidvar2=v_thr2Thread1of1ForFork0_thidvar2_2, thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_4|, thr2Thread1of1ForFork0_#res#1.base=|v_thr2Thread1of1ForFork0_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~b12~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork0_#res#1.offset, thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~x2~0#1, thr2Thread1of1ForFork0_#in~_#1.offset, thr2Thread1of1ForFork0_~y2~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork0_thidvar0, thr2Thread1of1ForFork0_thidvar1, thr2Thread1of1ForFork0_#in~_#1.base, thr2Thread1of1ForFork0_thidvar2, thr2Thread1of1ForFork0_~_#1.offset, thr2Thread1of1ForFork0_#res#1.base] 95141#[$Ultimate##0, L846-4, $Ultimate##0]don't care [384] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr2Thread1of1ForFork0_~_#1.base_1| |v_thr2Thread1of1ForFork0_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork0_~_#1.offset_1| |v_thr2Thread1of1ForFork0_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_1|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_1|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~_#1.offset] 95143#[$Ultimate##3, $Ultimate##0, L846-4]don't care [386] $Ultimate##3-->L823-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 97137#[L823-1, $Ultimate##0, L846-4]don't care [388] L823-1-->L775: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 90975#[$Ultimate##0, L846-4, L775]don't care [392] L775-->L777: Formula: (= v_~b2~0_1 1) InVars {} OutVars{~b2~0=v_~b2~0_1} AuxVars[] AssignedVars[~b2~0] 90981#[$Ultimate##0, L777, L846-4]don't care [395] L777-->L780: Formula: (= 2 v_~x~0_1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] 97287#[L780, $Ultimate##0, L846-4]don't care [399] L780-->L783: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_1| v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~y2~0#1] 97143#[$Ultimate##0, L783, L846-4]don't care [404] L783-->L798: Formula: (= |v_thr2Thread1of1ForFork0_~y2~0#1_5| 0) InVars {thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_5|} OutVars{thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_5|} AuxVars[] AssignedVars[] 95107#[$Ultimate##0, L798, L846-4]don't care [408] L798-->L800: Formula: (= 2 v_~y~0_5) InVars {} OutVars{~y~0=v_~y~0_5} AuxVars[] AssignedVars[~y~0] 90787#[$Ultimate##0, L846-4, L800]don't care [410] L800-->L803: Formula: (= |v_thr2Thread1of1ForFork0_~x2~0#1_1| v_~x~0_2) InVars {~x~0=v_~x~0_2} OutVars{thr2Thread1of1ForFork0_~x2~0#1=|v_thr2Thread1of1ForFork0_~x2~0#1_1|, ~x~0=v_~x~0_2} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~x2~0#1] 90793#[$Ultimate##0, L846-4, L803]don't care [414] L803-->L805: Formula: (not (= |v_thr2Thread1of1ForFork0_~x2~0#1_3| 2)) InVars {thr2Thread1of1ForFork0_~x2~0#1=|v_thr2Thread1of1ForFork0_~x2~0#1_3|} OutVars{thr2Thread1of1ForFork0_~x2~0#1=|v_thr2Thread1of1ForFork0_~x2~0#1_3|} AuxVars[] AssignedVars[] 97189#[L805, $Ultimate##0, L846-4]don't care [417] L805-->L807: Formula: (= v_~b2~0_4 0) InVars {} OutVars{~b2~0=v_~b2~0_4} AuxVars[] AssignedVars[~b2~0] 95797#[$Ultimate##0, L846-4, L807]don't care [418] L807-->L814: Formula: (= v_~b1~0_1 |v_thr2Thread1of1ForFork0_~b12~0#1_1|) InVars {~b1~0=v_~b1~0_1} OutVars{~b1~0=v_~b1~0_1, thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~b12~0#1] 95405#[$Ultimate##0, L814, L846-4]don't care [2024-02-09 23:12:43,023 INFO L750 eck$LassoCheckResult]: Loop: 95405#[$Ultimate##0, L814, L846-4]don't care [419] L814-->L812: Formula: (<= 1 |v_thr2Thread1of1ForFork0_~b12~0#1_3|) InVars {thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_3|} OutVars{thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_3|} AuxVars[] AssignedVars[] 95403#[$Ultimate##0, L846-4, L812]don't care [422] L812-->L814: Formula: (= v_~b1~0_2 |v_thr2Thread1of1ForFork0_~b12~0#1_7|) InVars {~b1~0=v_~b1~0_2} OutVars{~b1~0=v_~b1~0_2, thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_7|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~b12~0#1] 95405#[$Ultimate##0, L814, L846-4]don't care [2024-02-09 23:12:43,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:43,023 INFO L85 PathProgramCache]: Analyzing trace with hash 656098880, now seen corresponding path program 1 times [2024-02-09 23:12:43,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:43,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876930114] [2024-02-09 23:12:43,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:43,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:12:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:12:43,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-09 23:12:43,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876930114] [2024-02-09 23:12:43,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876930114] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-09 23:12:43,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-09 23:12:43,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-09 23:12:43,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452315023] [2024-02-09 23:12:43,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-09 23:12:43,059 INFO L753 eck$LassoCheckResult]: stem already infeasible [2024-02-09 23:12:43,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:43,059 INFO L85 PathProgramCache]: Analyzing trace with hash 14372, now seen corresponding path program 1 times [2024-02-09 23:12:43,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:43,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514354690] [2024-02-09 23:12:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:43,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:43,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-09 23:12:43,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-09 23:12:43,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-09 23:12:43,073 INFO L87 Difference]: Start difference. First operand 4514 states and 12567 transitions. cyclomatic complexity: 8706 Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-02-09 23:12:43,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-02-09 23:12:43,160 INFO L93 Difference]: Finished difference Result 4638 states and 12350 transitions. [2024-02-09 23:12:43,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4638 states and 12350 transitions. [2024-02-09 23:12:43,178 INFO L131 ngComponentsAnalysis]: Automaton has 553 accepting balls. 1138 [2024-02-09 23:12:43,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4638 states to 3875 states and 10407 transitions. [2024-02-09 23:12:43,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3875 [2024-02-09 23:12:43,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3875 [2024-02-09 23:12:43,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3875 states and 10407 transitions. [2024-02-09 23:12:43,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:12:43,195 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3875 states and 10407 transitions. [2024-02-09 23:12:43,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states and 10407 transitions. [2024-02-09 23:12:43,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 3427. [2024-02-09 23:12:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 3427 states have (on average 2.6982783775897285) internal successors, (9247), 3426 states have internal predecessors, (9247), 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) [2024-02-09 23:12:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 9247 transitions. [2024-02-09 23:12:43,243 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3427 states and 9247 transitions. [2024-02-09 23:12:43,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-09 23:12:43,244 INFO L428 stractBuchiCegarLoop]: Abstraction has 3427 states and 9247 transitions. [2024-02-09 23:12:43,244 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-02-09 23:12:43,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3427 states and 9247 transitions. [2024-02-09 23:12:43,253 INFO L131 ngComponentsAnalysis]: Automaton has 473 accepting balls. 978 [2024-02-09 23:12:43,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:12:43,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:12:43,253 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, 1, 1, 1, 1, 1, 1, 1] [2024-02-09 23:12:43,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:12:43,254 INFO L748 eck$LassoCheckResult]: Stem: 104798#[$Ultimate##0]don't care [273] $Ultimate##0-->L-1: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 104800#[L-1]don't care [280] L-1-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 109104#[L12]don't care [320] L12-->L12-1: 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[] 109106#[L12-1]don't care [338] L12-1-->L12-2: 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[] 107594#[L12-2]don't care [336] L12-2-->L12-3: 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[] 107596#[L12-3]don't care [361] L12-3-->L12-4: Formula: (and (= (select |v_#length_2| 2) 10) (= (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[] 106372#[L12-4]don't care [354] L12-4-->L700: Formula: (= v_~x~0_5 0) InVars {} OutVars{~x~0=v_~x~0_5} AuxVars[] AssignedVars[~x~0] 106374#[L700]don't care [296] L700-->L701: Formula: (= v_~y~0_17 0) InVars {} OutVars{~y~0=v_~y~0_17} AuxVars[] AssignedVars[~y~0] 108310#[L701]don't care [366] L701-->L701-1: Formula: (= v_~b1~0_7 0) InVars {} OutVars{~b1~0=v_~b1~0_7} AuxVars[] AssignedVars[~b1~0] 109170#[L701-1]don't care [261] L701-1-->L702: Formula: (= v_~b2~0_7 0) InVars {} OutVars{~b2~0=v_~b2~0_7} AuxVars[] AssignedVars[~b2~0] 107786#[L702]don't care [266] L702-->L-1-1: Formula: (= v_~X~0_7 0) InVars {} OutVars{~X~0=v_~X~0_7} AuxVars[] AssignedVars[~X~0] 107130#[L-1-1]don't care [371] L-1-1-->L-1-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 107132#[L-1-2]don't care [373] L-1-2-->L844: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_1|, ULTIMATE.start_main_#t~mem8#1=|v_ULTIMATE.start_main_#t~mem8#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~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_1|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_1|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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~pre6#1, ULTIMATE.start_main_#t~mem8#1, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_main_#t~nondet5#1, ULTIMATE.start_main_#t~nondet7#1, ULTIMATE.start_main_#t~mem9#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~pre4#1, ULTIMATE.start_main_~#t1~0#1.offset, ULTIMATE.start_main_~#t2~0#1.base] 107474#[L844]don't care [310] L844-->L844-1: 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] 107418#[L844-1]don't care [294] L844-1-->L844-2: 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] 107420#[L844-2]don't care [330] L844-2-->L845: Formula: (= |v_ULTIMATE.start_main_#t~pre4#1_2| |v_#pthreadsForks_1|) InVars {#pthreadsForks=|v_#pthreadsForks_1|} OutVars{#pthreadsForks=|v_#pthreadsForks_1|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 106422#[L845]don't care [358] L845-->L845-1: Formula: (= (+ 1 |v_#pthreadsForks_3|) |v_#pthreadsForks_2|) InVars {#pthreadsForks=|v_#pthreadsForks_3|} OutVars{#pthreadsForks=|v_#pthreadsForks_2|} AuxVars[] AssignedVars[#pthreadsForks] 106424#[L845-1]don't care [258] L845-1-->L845-2: 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) (= (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~pre4#1_3|)) |v_#memory_int_3|) (<= (+ |v_ULTIMATE.start_main_~#t1~0#1.offset_3| 4) (select |v_#length_7| |v_ULTIMATE.start_main_~#t1~0#1.base_3|))) InVars {#valid=|v_#valid_8|, #memory_int=|v_#memory_int_4|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_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|, #length=|v_#length_7|, ULTIMATE.start_main_~#t1~0#1.base=|v_ULTIMATE.start_main_~#t1~0#1.base_3|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_3|, ULTIMATE.start_main_~#t1~0#1.offset=|v_ULTIMATE.start_main_~#t1~0#1.offset_3|} AuxVars[] AssignedVars[#memory_int] 109168#[L845-2]don't care [485] L845-2-->$Ultimate##0: Formula: (and (= |v_thr1Thread1of1ForFork1_#in~_#1.offset_4| 0) (= v_thr1Thread1of1ForFork1_thidvar1_2 0) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_4| 0) (= |v_ULTIMATE.start_main_#t~pre4#1_7| v_thr1Thread1of1ForFork1_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_4|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset_8|, ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_7|, thr1Thread1of1ForFork1_thidvar1=v_thr1Thread1of1ForFork1_thidvar1_2, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_4|, thr1Thread1of1ForFork1_thidvar0=v_thr1Thread1of1ForFork1_thidvar0_2, thr1Thread1of1ForFork1_#res#1.base=|v_thr1Thread1of1ForFork1_#res#1.base_4|, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base=|v_thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base_8|, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_12|, thr1Thread1of1ForFork1_#res#1.offset=|v_thr1Thread1of1ForFork1_#res#1.offset_4|, thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_8|, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_30|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_4|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_#in~_#1.base, thr1Thread1of1ForFork1_#in~_#1.offset, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.offset, thr1Thread1of1ForFork1_thidvar1, thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_thidvar0, thr1Thread1of1ForFork1_#res#1.base, thr1Thread1of1ForFork1_reach_error_#t~nondet0#1.base, thr1Thread1of1ForFork1_~b21~0#1, thr1Thread1of1ForFork1_#res#1.offset, thr1Thread1of1ForFork1_~x1~0#1, thr1Thread1of1ForFork1_~y1~0#1, thr1Thread1of1ForFork1_~_#1.base] 107404#[$Ultimate##0, L845-3]don't care [432] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr1Thread1of1ForFork1_~_#1.offset_1| |v_thr1Thread1of1ForFork1_#in~_#1.offset_1|) (= |v_thr1Thread1of1ForFork1_#in~_#1.base_1| |v_thr1Thread1of1ForFork1_~_#1.base_1|)) InVars {thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|} OutVars{thr1Thread1of1ForFork1_#in~_#1.base=|v_thr1Thread1of1ForFork1_#in~_#1.base_1|, thr1Thread1of1ForFork1_#in~_#1.offset=|v_thr1Thread1of1ForFork1_#in~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.offset=|v_thr1Thread1of1ForFork1_~_#1.offset_1|, thr1Thread1of1ForFork1_~_#1.base=|v_thr1Thread1of1ForFork1_~_#1.base_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~_#1.offset, thr1Thread1of1ForFork1_~_#1.base] 105328#[$Ultimate##3, L845-3]don't care [434] $Ultimate##3-->L753-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 105330#[L753-1, L845-3]don't care [436] L753-1-->L705: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 108972#[L705, L845-3]don't care [440] L705-->L707: Formula: (= v_~b1~0_5 1) InVars {} OutVars{~b1~0=v_~b1~0_5} AuxVars[] AssignedVars[~b1~0] 108476#[L707, L845-3]don't care [346] L845-3-->L845-4: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~pre4#1=|v_ULTIMATE.start_main_#t~pre4#1_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre4#1] 105718#[L707, L845-4]don't care [272] L845-4-->L846: 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] 106536#[L846, L707]don't care [257] L846-->L846-1: Formula: (= |v_ULTIMATE.start_main_#t~pre6#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{#pthreadsForks=|v_#pthreadsForks_4|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1] 104766#[L846-1, L707]don't care [250] L846-1-->L846-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 104768#[L707, L846-2]don't care [443] L707-->L710: Formula: (= v_~x~0_4 1) InVars {} OutVars{~x~0=v_~x~0_4} AuxVars[] AssignedVars[~x~0] 108748#[L710, L846-2]don't care [447] L710-->L713: Formula: (= v_~y~0_15 |v_thr1Thread1of1ForFork1_~y1~0#1_1|) InVars {~y~0=v_~y~0_15} OutVars{~y~0=v_~y~0_15, thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~y1~0#1] 108750#[L713, L846-2]don't care [452] L713-->L728: Formula: (= |v_thr1Thread1of1ForFork1_~y1~0#1_5| 0) InVars {thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_5|} OutVars{thr1Thread1of1ForFork1_~y1~0#1=|v_thr1Thread1of1ForFork1_~y1~0#1_5|} AuxVars[] AssignedVars[] 108190#[L846-2, L728]don't care [456] L728-->L730: Formula: (= v_~y~0_10 1) InVars {} OutVars{~y~0=v_~y~0_10} AuxVars[] AssignedVars[~y~0] 108192#[L730, L846-2]don't care [271] L846-2-->L846-3: 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) (= (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~pre6#1_3|)) |v_#memory_int_5|) (<= 0 |v_ULTIMATE.start_main_~#t2~0#1.offset_3|)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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~pre6#1=|v_ULTIMATE.start_main_#t~pre6#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] 108676#[L730, L846-3]don't care [482] L846-3-->$Ultimate##0: Formula: (and (= v_thr2Thread1of1ForFork0_thidvar2_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre6#1_7| v_thr2Thread1of1ForFork0_thidvar0_2) (= v_thr2Thread1of1ForFork0_thidvar1_2 0) (= |v_thr2Thread1of1ForFork0_#in~_#1.base_4| 0)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|} OutVars{thr2Thread1of1ForFork0_~b12~0#1=|v_thr2Thread1of1ForFork0_~b12~0#1_12|, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_7|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset_8|, thr2Thread1of1ForFork0_#res#1.offset=|v_thr2Thread1of1ForFork0_#res#1.offset_4|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_4|, thr2Thread1of1ForFork0_~x2~0#1=|v_thr2Thread1of1ForFork0_~x2~0#1_8|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_4|, thr2Thread1of1ForFork0_~y2~0#1=|v_thr2Thread1of1ForFork0_~y2~0#1_30|, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base=|v_thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base_8|, thr2Thread1of1ForFork0_thidvar0=v_thr2Thread1of1ForFork0_thidvar0_2, thr2Thread1of1ForFork0_thidvar1=v_thr2Thread1of1ForFork0_thidvar1_2, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_4|, thr2Thread1of1ForFork0_thidvar2=v_thr2Thread1of1ForFork0_thidvar2_2, thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_4|, thr2Thread1of1ForFork0_#res#1.base=|v_thr2Thread1of1ForFork0_#res#1.base_4|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~b12~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.offset, thr2Thread1of1ForFork0_#res#1.offset, thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~x2~0#1, thr2Thread1of1ForFork0_#in~_#1.offset, thr2Thread1of1ForFork0_~y2~0#1, thr2Thread1of1ForFork0_reach_error_#t~nondet0#1.base, thr2Thread1of1ForFork0_thidvar0, thr2Thread1of1ForFork0_thidvar1, thr2Thread1of1ForFork0_#in~_#1.base, thr2Thread1of1ForFork0_thidvar2, thr2Thread1of1ForFork0_~_#1.offset, thr2Thread1of1ForFork0_#res#1.base] 108548#[L730, L846-4, $Ultimate##0]don't care [384] $Ultimate##0-->$Ultimate##3: Formula: (and (= |v_thr2Thread1of1ForFork0_~_#1.base_1| |v_thr2Thread1of1ForFork0_#in~_#1.base_1|) (= |v_thr2Thread1of1ForFork0_~_#1.offset_1| |v_thr2Thread1of1ForFork0_#in~_#1.offset_1|)) InVars {thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} OutVars{thr2Thread1of1ForFork0_~_#1.offset=|v_thr2Thread1of1ForFork0_~_#1.offset_1|, thr2Thread1of1ForFork0_~_#1.base=|v_thr2Thread1of1ForFork0_~_#1.base_1|, thr2Thread1of1ForFork0_#in~_#1.offset=|v_thr2Thread1of1ForFork0_#in~_#1.offset_1|, thr2Thread1of1ForFork0_#in~_#1.base=|v_thr2Thread1of1ForFork0_#in~_#1.base_1|} AuxVars[] AssignedVars[thr2Thread1of1ForFork0_~_#1.base, thr2Thread1of1ForFork0_~_#1.offset] 108550#[$Ultimate##3, L730, L846-4]don't care [386] $Ultimate##3-->L823-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 107104#[L823-1, L730, L846-4]don't care [388] L823-1-->L775: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 106316#[L730, L846-4, L775]don't care [392] L775-->L777: Formula: (= v_~b2~0_1 1) InVars {} OutVars{~b2~0=v_~b2~0_1} AuxVars[] AssignedVars[~b2~0] 106318#[L777, L730, L846-4]don't care [395] L777-->L780: Formula: (= 2 v_~x~0_1) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0] 108732#[L780, L730, L846-4]don't care [458] L730-->L733: Formula: (= |v_thr1Thread1of1ForFork1_~x1~0#1_1| v_~x~0_3) InVars {~x~0=v_~x~0_3} OutVars{thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_1|, ~x~0=v_~x~0_3} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~x1~0#1] 109602#[L780, L733, L846-4]don't care [462] L733-->L735: Formula: (not (= |v_thr1Thread1of1ForFork1_~x1~0#1_3| 1)) InVars {thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_3|} OutVars{thr1Thread1of1ForFork1_~x1~0#1=|v_thr1Thread1of1ForFork1_~x1~0#1_3|} AuxVars[] AssignedVars[] 108014#[L780, L735, L846-4]don't care [465] L735-->L737: Formula: (= v_~b1~0_4 0) InVars {} OutVars{~b1~0=v_~b1~0_4} AuxVars[] AssignedVars[~b1~0] 103468#[L780, L737, L846-4]don't care [466] L737-->L744: Formula: (= v_~b2~0_5 |v_thr1Thread1of1ForFork1_~b21~0#1_1|) InVars {~b2~0=v_~b2~0_5} OutVars{~b2~0=v_~b2~0_5, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_1|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~b21~0#1] 103470#[L780, L744, L846-4]don't care [2024-02-09 23:12:43,254 INFO L750 eck$LassoCheckResult]: Loop: 103470#[L780, L744, L846-4]don't care [467] L744-->L742: Formula: (<= 1 |v_thr1Thread1of1ForFork1_~b21~0#1_3|) InVars {thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_3|} OutVars{thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_3|} AuxVars[] AssignedVars[] 108640#[L780, L742, L846-4]don't care [470] L742-->L744: Formula: (= v_~b2~0_6 |v_thr1Thread1of1ForFork1_~b21~0#1_7|) InVars {~b2~0=v_~b2~0_6} OutVars{~b2~0=v_~b2~0_6, thr1Thread1of1ForFork1_~b21~0#1=|v_thr1Thread1of1ForFork1_~b21~0#1_7|} AuxVars[] AssignedVars[thr1Thread1of1ForFork1_~b21~0#1] 103470#[L780, L744, L846-4]don't care [2024-02-09 23:12:43,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1233776431, now seen corresponding path program 1 times [2024-02-09 23:12:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:43,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322894423] [2024-02-09 23:12:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:43,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:43,272 INFO L85 PathProgramCache]: Analyzing trace with hash 15908, now seen corresponding path program 2 times [2024-02-09 23:12:43,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:43,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830518462] [2024-02-09 23:12:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:43,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:43,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:12:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 248191442, now seen corresponding path program 1 times [2024-02-09 23:12:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:12:43,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502747305] [2024-02-09 23:12:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:12:43,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:12:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:43,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:12:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:44,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:12:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:12:44,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:12:44 BoogieIcfgContainer [2024-02-09 23:12:44,165 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:12:44,165 INFO L158 Benchmark]: Toolchain (without parser) took 6751.93ms. Allocated memory was 172.0MB in the beginning and 945.8MB in the end (delta: 773.8MB). Free memory was 101.8MB in the beginning and 673.7MB in the end (delta: -571.9MB). Peak memory consumption was 202.9MB. Max. memory is 8.0GB. [2024-02-09 23:12:44,165 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:12:44,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.47ms. Allocated memory was 172.0MB in the beginning and 248.5MB in the end (delta: 76.5MB). Free memory was 101.6MB in the beginning and 200.6MB in the end (delta: -99.0MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. [2024-02-09 23:12:44,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.29ms. Allocated memory is still 248.5MB. Free memory was 200.1MB in the beginning and 198.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-02-09 23:12:44,166 INFO L158 Benchmark]: Boogie Preprocessor took 52.45ms. Allocated memory is still 248.5MB. Free memory was 198.1MB in the beginning and 196.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-02-09 23:12:44,167 INFO L158 Benchmark]: RCFGBuilder took 454.07ms. Allocated memory is still 248.5MB. Free memory was 196.0MB in the beginning and 180.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-02-09 23:12:44,167 INFO L158 Benchmark]: BuchiAutomizer took 5276.46ms. Allocated memory was 248.5MB in the beginning and 945.8MB in the end (delta: 697.3MB). Free memory was 180.3MB in the beginning and 673.7MB in the end (delta: -493.4MB). Peak memory consumption was 204.4MB. Max. memory is 8.0GB. [2024-02-09 23:12:44,168 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 892.47ms. Allocated memory was 172.0MB in the beginning and 248.5MB in the end (delta: 76.5MB). Free memory was 101.6MB in the beginning and 200.6MB in the end (delta: -99.0MB). Peak memory consumption was 5.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.29ms. Allocated memory is still 248.5MB. Free memory was 200.1MB in the beginning and 198.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.45ms. Allocated memory is still 248.5MB. Free memory was 198.1MB in the beginning and 196.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 454.07ms. Allocated memory is still 248.5MB. Free memory was 196.0MB in the beginning and 180.3MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * BuchiAutomizer took 5276.46ms. Allocated memory was 248.5MB in the beginning and 945.8MB in the end (delta: 697.3MB). Free memory was 180.3MB in the beginning and 673.7MB in the end (delta: -493.4MB). Peak memory consumption was 204.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (6 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.6 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 3427 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.3s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 0. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 11915 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.7s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1287 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1287 mSDsluCounter, 2876 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1790 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 481 IncrementalHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 1086 mSDtfsCounter, 481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN4 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 741]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L700] 0 int x, y; VAL [x=0, y=0] [L701] 0 int b1, b2; VAL [b1=0, b2=0, x=0, y=0] [L702] 0 int X; VAL [X=0, b1=0, b2=0, x=0, y=0] [L844] 0 pthread_t t1, t2; VAL [X=0, b1=0, b2=0, t1={11914:0}, t2={11913:0}, x=0, y=0] [L845] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [X=0, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=27725, t1={11914:0}, t2={11913:0}, x=0, y=0] [L704] COND TRUE 1 1 VAL [X=0, _={0:0}, _={0:0}, b1=0, b2=0, x=0, y=0] [L706] 1 b1 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=0, y=0] [L709] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=0] [L712] 1 int y1 = y; VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y1=0, y=0] [L714] COND FALSE 1 !(y1 != 0) VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y1=0, y=0] [L729] 1 y = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y1=0, y=1] [L846] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [X=0, b1=1, b2=0, pthread_create(&t2, 0, thr2, 0)=27726, t1={11914:0}, t2={11913:0}, x=1, y=1] [L774] COND TRUE 2 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=1] [L776] 2 b2 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x=1, y=1] [L779] 2 x = 2 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x=2, y=1] [L732] 1 int x1 = x; VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x1=2, x=2, y1=0, y=1] [L734] COND TRUE 1 x1 != 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x1=2, x=2, y1=0, y=1] [L736] 1 b1 = 0 VAL [X=0, _={0:0}, _={0:0}, b1=0, b2=1, x1=2, x=2, y1=0, y=1] [L739] 1 int b21 = b2; VAL [X=0, _={0:0}, _={0:0}, b1=0, b21=1, b2=1, x1=2, x=2, y1=0, y=1] Loop: [L741] COND TRUE b21 >= 1 [L743] b21 = b2 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 741]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L700] 0 int x, y; VAL [x=0, y=0] [L701] 0 int b1, b2; VAL [b1=0, b2=0, x=0, y=0] [L702] 0 int X; VAL [X=0, b1=0, b2=0, x=0, y=0] [L844] 0 pthread_t t1, t2; VAL [X=0, b1=0, b2=0, t1={11914:0}, t2={11913:0}, x=0, y=0] [L845] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [X=0, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=27725, t1={11914:0}, t2={11913:0}, x=0, y=0] [L704] COND TRUE 1 1 VAL [X=0, _={0:0}, _={0:0}, b1=0, b2=0, x=0, y=0] [L706] 1 b1 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=0, y=0] [L709] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=0] [L712] 1 int y1 = y; VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y1=0, y=0] [L714] COND FALSE 1 !(y1 != 0) VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y1=0, y=0] [L729] 1 y = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y1=0, y=1] [L846] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [X=0, b1=1, b2=0, pthread_create(&t2, 0, thr2, 0)=27726, t1={11914:0}, t2={11913:0}, x=1, y=1] [L774] COND TRUE 2 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=1] [L776] 2 b2 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x=1, y=1] [L779] 2 x = 2 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x=2, y=1] [L732] 1 int x1 = x; VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x1=2, x=2, y1=0, y=1] [L734] COND TRUE 1 x1 != 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x1=2, x=2, y1=0, y=1] [L736] 1 b1 = 0 VAL [X=0, _={0:0}, _={0:0}, b1=0, b2=1, x1=2, x=2, y1=0, y=1] [L739] 1 int b21 = b2; VAL [X=0, _={0:0}, _={0:0}, b1=0, b21=1, b2=1, x1=2, x=2, y1=0, y=1] Loop: [L741] COND TRUE b21 >= 1 [L743] b21 = b2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-02-09 23:12:44,219 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...