/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/indep_loops_8.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:58,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:58,416 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:58,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:58,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:58,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:58,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:58,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:58,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:58,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:58,447 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:58,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:58,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:58,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:58,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:58,448 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:58,448 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:58,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:58,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:58,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:58,685 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:58,686 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:58,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_8.c.bpl [2025-02-17 22:45:58,689 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_8.c.bpl' [2025-02-17 22:45:58,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:58,708 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:58,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:58,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:58,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:58,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,724 INFO L138 Inliner]: procedures = 9, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:58,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:58,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:58,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:58,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:58,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:58,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:58,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:58,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:58,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/1) ... [2025-02-17 22:45:58,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:58,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:58,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:58,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:58,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:58,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:58,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:58,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:58,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:45:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:45:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:45:58,785 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:45:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:45:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:45:58,786 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-02-17 22:45:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-17 22:45:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-17 22:45:58,786 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2025-02-17 22:45:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-02-17 22:45:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-02-17 22:45:58,786 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2025-02-17 22:45:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2025-02-17 22:45:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2025-02-17 22:45:58,787 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:58,819 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:58,821 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:58,915 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:58,915 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:58,924 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:58,924 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:58,924 INFO L201 PluginConnector]: Adding new model indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:58 BoogieIcfgContainer [2025-02-17 22:45:58,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:58,927 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:58,927 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:58,931 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:58,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:58,932 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:58" (1/2) ... [2025-02-17 22:45:58,933 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33b48c1b and model type indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:58, skipping insertion in model container [2025-02-17 22:45:58,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:58,933 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:58" (2/2) ... [2025-02-17 22:45:58,934 INFO L363 chiAutomizerObserver]: Analyzing ICFG indep_loops_8.c.bpl [2025-02-17 22:45:59,035 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-02-17 22:45:59,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 65 transitions, 186 flow [2025-02-17 22:45:59,098 INFO L124 PetriNetUnfolderBase]: 8/49 cut-off events. [2025-02-17 22:45:59,100 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-17 22:45:59,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 49 events. 8/49 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2025-02-17 22:45:59,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 65 transitions, 186 flow [2025-02-17 22:45:59,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 49 transitions, 146 flow [2025-02-17 22:45:59,120 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:59,121 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:59,121 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:59,123 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:59,123 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:59,123 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:59,124 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:59,125 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:59,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:46:10,040 INFO L131 ngComponentsAnalysis]: Automaton has 12355 accepting balls. 108460 [2025-02-17 22:46:10,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:10,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:10,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:46:10,049 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:10,049 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:46:10,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 109226 states, but on-demand construction may add more states [2025-02-17 22:46:13,619 INFO L131 ngComponentsAnalysis]: Automaton has 12355 accepting balls. 108460 [2025-02-17 22:46:13,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:13,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:13,625 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:46:13,625 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:13,629 INFO L752 eck$LassoCheckResult]: Stem: "[156] $Ultimate##0-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:46:13,629 INFO L754 eck$LassoCheckResult]: Loop: "[123] L38-->L40: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[125] L40-->L38: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-02-17 22:46:13,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash 187, now seen corresponding path program 1 times [2025-02-17 22:46:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:13,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646003312] [2025-02-17 22:46:13,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:13,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:13,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:46:13,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:46:13,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:13,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:13,682 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:13,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:46:13,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:46:13,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:13,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:13,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:13,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash 4899, now seen corresponding path program 1 times [2025-02-17 22:46:13,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:13,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016762175] [2025-02-17 22:46:13,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:13,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:13,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:13,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:13,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:13,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:13,710 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:13,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:13,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:13,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:13,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:13,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:13,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:13,718 INFO L85 PathProgramCache]: Analyzing trace with hash 183645, now seen corresponding path program 1 times [2025-02-17 22:46:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:13,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278651275] [2025-02-17 22:46:13,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:13,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:13,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:13,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:13,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:13,722 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:13,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:13,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:13,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:13,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:13,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:13,775 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:13,776 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:13,776 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:13,776 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:13,777 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:13,777 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:13,777 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:13,777 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:13,777 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_8.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:46:13,777 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:13,777 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:13,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:13,823 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:13,823 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:13,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:13,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:13,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:13,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:46:13,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:13,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:13,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:46:13,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:13,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:13,851 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:13,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:46:13,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:13,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:13,916 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:13,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:46:13,920 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:13,920 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:13,920 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:13,920 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:13,920 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:13,920 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:13,920 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:13,920 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:13,920 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_8.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:46:13,920 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:13,920 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:13,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:13,939 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:13,944 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:13,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:13,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:13,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:13,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:46:13,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:46:13,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:13,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:13,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:13,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:13,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:13,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:13,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:13,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:13,975 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:46:13,975 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:13,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:13,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:13,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:13,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:46:13,983 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:13,983 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:13,984 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:13,984 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-02-17 22:46:13,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:46:13,992 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:14,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:46:14,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:14,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:46:14,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:46:14,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:14,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:14,113 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:14,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:14,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:14,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:14,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:14,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:14,136 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:14,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:46:14,194 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:46:14,200 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 109226 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-02-17 22:46:22,493 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 109226 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 305829 states and 2605050 transitions. Complement of second has 6 states. [2025-02-17 22:46:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:46:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-02-17 22:46:22,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2025-02-17 22:46:22,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 121 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-17 22:46:22,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:22,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 121 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:46:22,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:22,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 121 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-17 22:46:22,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:22,509 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 305829 states and 2605050 transitions. [2025-02-17 22:46:32,244 INFO L131 ngComponentsAnalysis]: Automaton has 15125 accepting balls. 107950 [2025-02-17 22:46:40,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 305829 states to 238757 states and 2056781 transitions. [2025-02-17 22:46:40,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108457 [2025-02-17 22:46:42,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173607 [2025-02-17 22:46:42,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 238757 states and 2056781 transitions. [2025-02-17 22:46:42,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:42,280 INFO L218 hiAutomatonCegarLoop]: Abstraction has 238757 states and 2056781 transitions. [2025-02-17 22:46:43,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238757 states and 2056781 transitions. [2025-02-17 22:46:53,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238757 to 173609. [2025-02-17 22:46:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173609 states, 173609 states have (on average 8.876458017729496) internal successors, (1541033), 173608 states have internal predecessors, (1541033), 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) [2025-02-17 22:46:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173609 states to 173609 states and 1541033 transitions. [2025-02-17 22:46:57,185 INFO L240 hiAutomatonCegarLoop]: Abstraction has 173609 states and 1541033 transitions. [2025-02-17 22:46:57,185 INFO L432 stractBuchiCegarLoop]: Abstraction has 173609 states and 1541033 transitions. [2025-02-17 22:46:57,185 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:46:57,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173609 states and 1541033 transitions. [2025-02-17 22:47:00,078 INFO L131 ngComponentsAnalysis]: Automaton has 15125 accepting balls. 107950 [2025-02-17 22:47:00,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:00,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:00,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:00,085 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:00,086 INFO L752 eck$LassoCheckResult]: Stem: "[156] $Ultimate##0-->L38: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[159] L17-->L47: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:47:00,086 INFO L754 eck$LassoCheckResult]: Loop: "[127] L47-->L49: Formula: (< v_x2_1 v_z_3) InVars {x2=v_x2_1, z=v_z_3} OutVars{x2=v_x2_1, z=v_z_3} AuxVars[] AssignedVars[]" "[129] L49-->L47: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:47:00,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash 5956, now seen corresponding path program 1 times [2025-02-17 22:47:00,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:00,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019540472] [2025-02-17 22:47:00,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:00,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:00,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:00,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:00,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:00,091 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:00,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:00,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:00,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:00,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:00,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:00,095 INFO L85 PathProgramCache]: Analyzing trace with hash 5027, now seen corresponding path program 1 times [2025-02-17 22:47:00,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:00,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345391476] [2025-02-17 22:47:00,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:00,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:00,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:00,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:00,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:00,099 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:00,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:00,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:00,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:00,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:00,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash 5727782, now seen corresponding path program 1 times [2025-02-17 22:47:00,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:00,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905628085] [2025-02-17 22:47:00,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:00,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:00,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:00,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:00,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:00,116 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:00,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:00,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:00,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:00,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:00,135 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:00,135 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:00,135 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:00,135 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:00,135 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:00,136 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:00,136 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:00,136 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:00,136 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_8.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:00,136 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:00,136 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:00,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:00,152 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:00,152 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:00,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:00,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:00,154 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:00,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:47:00,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:00,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:00,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-17 22:47:00,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:00,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:00,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:00,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:47:00,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:00,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:00,246 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:00,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:47:00,251 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:00,251 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:00,251 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:00,251 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:00,251 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:00,251 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:00,251 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:00,251 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:00,251 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_8.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:00,251 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:00,251 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:00,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:00,266 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:00,266 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:00,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:00,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:00,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:00,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:47:00,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:00,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:00,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:00,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:00,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:00,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:00,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:00,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:00,283 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:00,285 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:00,285 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:00,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:00,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:00,287 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:00,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:47:00,289 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:00,289 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:00,289 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:00,289 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-02-17 22:47:00,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:00,295 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:00,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:00,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:00,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:00,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:00,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:00,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:00,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:00,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:00,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:00,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:00,329 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:00,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:00,340 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:47:00,341 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 173609 states and 1541033 transitions. cyclomatic complexity: 1385701 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-17 22:47:00,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0