/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 ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:22:41,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:22:41,650 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:22:41,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:22:41,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:22:41,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:22:41,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:22:41,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:22:41,671 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:22:41,671 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:22:41,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:22:41,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:22:41,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:22:41,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:22:41,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:22:41,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:22:41,673 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:22:41,673 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:22:41,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:22:41,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:22:41,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:22:41,924 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:22:41,926 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:22:41,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl [2025-04-26 16:22:41,928 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl' [2025-04-26 16:22:41,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:22:41,944 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:22:41,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:41,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:22:41,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:22:41,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,973 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:22:41,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:41,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:22:41,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:22:41,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:22:41,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,984 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:41,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:22:42,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:22:42,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:22:42,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:22:42,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/1) ... [2025-04-26 16:22:42,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:42,029 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) [2025-04-26 16:22:42,033 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 [2025-04-26 16:22:42,054 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:22:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:22:42,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:22:42,055 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:22:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:22:42,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:22:42,055 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:22:42,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:22:42,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:22:42,056 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:22:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:22:42,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:22:42,056 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:22:42,091 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:22:42,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:22:42,186 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:22:42,187 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:22:42,218 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:22:42,218 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:22:42,219 INFO L201 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:42 BoogieIcfgContainer [2025-04-26 16:22:42,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:22:42,221 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:22:42,221 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:22:42,226 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:22:42,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:42,227 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:41" (1/2) ... [2025-04-26 16:22:42,228 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34b5728b and model type misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:22:42, skipping insertion in model container [2025-04-26 16:22:42,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:42,228 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:42" (2/2) ... [2025-04-26 16:22:42,229 INFO L376 chiAutomizerObserver]: Analyzing ICFG misc-5.wvr.bpl [2025-04-26 16:22:42,283 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:22:42,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 77 flow [2025-04-26 16:22:42,337 INFO L116 PetriNetUnfolderBase]: 4/22 cut-off events. [2025-04-26 16:22:42,339 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:22:42,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 22 events. 4/22 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 18. Up to 3 conditions per place. [2025-04-26 16:22:42,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 28 transitions, 77 flow [2025-04-26 16:22:42,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 22 transitions, 62 flow [2025-04-26 16:22:42,348 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 28 places, 22 transitions, 62 flow [2025-04-26 16:22:42,356 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:22:42,356 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:22:42,356 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:22:42,356 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:22:42,356 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:22:42,356 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:22:42,357 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:22:42,357 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:22:42,358 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:22:42,398 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 56 [2025-04-26 16:22:42,400 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:42,400 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:42,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:42,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:42,403 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:22:42,403 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 88 states, but on-demand construction may add more states [2025-04-26 16:22:42,411 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 56 [2025-04-26 16:22:42,413 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:42,413 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:42,413 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:42,413 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:42,417 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" [2025-04-26 16:22:42,418 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[73] L18-->L25: Formula: (and (= (+ v_c1_11 1) v_c1_12) (< 0 v_c1_12) (= v_pos_16 (+ v_pos_15 1))) InVars {pos=v_pos_16, c1=v_c1_12} OutVars{pos=v_pos_15, c1=v_c1_11} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:22:42,421 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash 3004, now seen corresponding path program 1 times [2025-04-26 16:22:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:42,426 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578169304] [2025-04-26 16:22:42,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:42,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:42,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:42,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:42,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:42,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:42,477 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:42,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:42,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:42,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:42,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:42,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:42,499 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:42,500 INFO L85 PathProgramCache]: Analyzing trace with hash 3235, now seen corresponding path program 1 times [2025-04-26 16:22:42,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:42,500 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962795129] [2025-04-26 16:22:42,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:42,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:42,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:42,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:42,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:42,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:42,509 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:42,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:42,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:42,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:42,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:42,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:42,517 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2889118, now seen corresponding path program 1 times [2025-04-26 16:22:42,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:42,519 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696615154] [2025-04-26 16:22:42,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:42,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:42,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:42,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:42,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:42,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:42,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:22:42,596 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696615154] [2025-04-26 16:22:42,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696615154] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:22:42,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:22:42,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 16:22:42,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359715360] [2025-04-26 16:22:42,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:22:42,686 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:42,688 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:42,688 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:42,688 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:42,688 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:42,688 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,688 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:42,688 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:42,689 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:22:42,690 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:42,690 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:42,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:42,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:42,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:42,764 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:42,764 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:42,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:42,767 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) [2025-04-26 16:22:42,768 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 [2025-04-26 16:22:42,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:42,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:42,791 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:42,791 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_1=1} Honda state: {v_rep(ite v_assert 1 0)_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:42,798 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 [2025-04-26 16:22:42,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:42,801 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) [2025-04-26 16:22:42,801 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 [2025-04-26 16:22:42,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:42,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:42,826 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 [2025-04-26 16:22:42,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:42,829 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) [2025-04-26 16:22:42,830 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 [2025-04-26 16:22:42,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:42,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:42,857 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:42,861 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 [2025-04-26 16:22:42,861 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:42,861 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:42,861 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:42,861 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:42,861 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:42,861 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,861 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:42,861 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:42,861 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:22:42,861 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:42,861 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:42,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:42,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:42,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:42,928 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:42,932 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:42,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:42,935 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) [2025-04-26 16:22:42,936 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 [2025-04-26 16:22:42,938 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 [2025-04-26 16:22:42,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:42,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:42,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:42,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:42,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:42,952 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:42,952 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:42,954 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:42,960 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 [2025-04-26 16:22:42,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:42,962 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) [2025-04-26 16:22:42,963 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 [2025-04-26 16:22:42,964 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 [2025-04-26 16:22:42,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:42,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:42,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:42,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:42,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:42,975 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:42,975 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:42,977 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:42,980 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:42,980 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:22:42,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:42,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:42,983 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) [2025-04-26 16:22:42,984 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 [2025-04-26 16:22:42,986 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:42,989 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 [2025-04-26 16:22:42,989 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:42,989 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:42,990 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c1) = 1*c1 Supporting invariants [] [2025-04-26 16:22:42,995 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 [2025-04-26 16:22:42,997 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:43,011 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:43,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:43,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:43,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:43,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:43,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:43,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:43,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:43,050 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:43,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:43,078 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:43,080 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 88 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,198 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 88 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 325 states and 1043 transitions. Complement of second has 6 states. [2025-04-26 16:22:43,202 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2025-04-26 16:22:43,212 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:22:43,213 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:43,213 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:22:43,215 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:43,215 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:22:43,216 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:43,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 1043 transitions. [2025-04-26 16:22:43,231 INFO L131 ngComponentsAnalysis]: Automaton has 43 accepting balls. 94 [2025-04-26 16:22:43,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 208 states and 708 transitions. [2025-04-26 16:22:43,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2025-04-26 16:22:43,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2025-04-26 16:22:43,243 INFO L74 IsDeterministic]: Start isDeterministic. Operand 208 states and 708 transitions. [2025-04-26 16:22:43,243 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:43,243 INFO L218 hiAutomatonCegarLoop]: Abstraction has 208 states and 708 transitions. [2025-04-26 16:22:43,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 708 transitions. [2025-04-26 16:22:43,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 144. [2025-04-26 16:22:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 3.5555555555555554) internal successors, (in total 512), 143 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 512 transitions. [2025-04-26 16:22:43,276 INFO L240 hiAutomatonCegarLoop]: Abstraction has 144 states and 512 transitions. [2025-04-26 16:22:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:22:43,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:22:43,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:22:43,281 INFO L87 Difference]: Start difference. First operand 144 states and 512 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (in total 4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:22:43,320 INFO L93 Difference]: Finished difference Result 151 states and 452 transitions. [2025-04-26 16:22:43,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 452 transitions. [2025-04-26 16:22:43,322 INFO L131 ngComponentsAnalysis]: Automaton has 43 accepting balls. 94 [2025-04-26 16:22:43,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 118 states and 369 transitions. [2025-04-26 16:22:43,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2025-04-26 16:22:43,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2025-04-26 16:22:43,327 INFO L74 IsDeterministic]: Start isDeterministic. Operand 118 states and 369 transitions. [2025-04-26 16:22:43,328 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:43,328 INFO L218 hiAutomatonCegarLoop]: Abstraction has 118 states and 369 transitions. [2025-04-26 16:22:43,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 369 transitions. [2025-04-26 16:22:43,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 94. [2025-04-26 16:22:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 3.223404255319149) internal successors, (in total 303), 93 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 303 transitions. [2025-04-26 16:22:43,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 303 transitions. [2025-04-26 16:22:43,337 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:22:43,338 INFO L438 stractBuchiCegarLoop]: Abstraction has 94 states and 303 transitions. [2025-04-26 16:22:43,338 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:22:43,338 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 303 transitions. [2025-04-26 16:22:43,339 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 72 [2025-04-26 16:22:43,339 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:43,339 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:43,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:22:43,339 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:43,340 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[84] L64-1-->L45: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 16:22:43,340 INFO L754 eck$LassoCheckResult]: Loop: "[76] L45-->L38: Formula: v_v_assert_3 InVars {v_assert=v_v_assert_3} OutVars{v_assert=v_v_assert_3} AuxVars[] AssignedVars[]" "[78] L38-->L45: Formula: (and (< 0 v_c2_12) (= (+ v_c2_11 1) v_c2_12) (= (+ v_pos_27 1) v_pos_28)) InVars {pos=v_pos_28, c2=v_c2_12} OutVars{pos=v_pos_27, c2=v_c2_11} AuxVars[] AssignedVars[c2, pos]" [2025-04-26 16:22:43,340 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,340 INFO L85 PathProgramCache]: Analyzing trace with hash 93208, now seen corresponding path program 1 times [2025-04-26 16:22:43,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:43,340 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658253241] [2025-04-26 16:22:43,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:43,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:43,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:43,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:43,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,346 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:43,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:43,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:43,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:43,349 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,349 INFO L85 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 1 times [2025-04-26 16:22:43,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:43,349 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935037589] [2025-04-26 16:22:43,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:43,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:43,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:43,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:43,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,352 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:43,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:43,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:43,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:43,354 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash 89575322, now seen corresponding path program 1 times [2025-04-26 16:22:43,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:43,354 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541897210] [2025-04-26 16:22:43,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:43,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:43,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:43,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:43,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:43,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:22:43,391 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541897210] [2025-04-26 16:22:43,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541897210] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:22:43,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:22:43,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 16:22:43,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564703145] [2025-04-26 16:22:43,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:22:43,420 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:43,420 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:43,420 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:43,420 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:43,420 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:43,420 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,420 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:43,421 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:43,421 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:22:43,421 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:43,421 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:43,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,457 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:43,457 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:43,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,459 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) [2025-04-26 16:22:43,460 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 [2025-04-26 16:22:43,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:43,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:43,478 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:43,478 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_3=1} Honda state: {v_rep(ite v_assert 1 0)_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:43,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:22:43,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,485 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) [2025-04-26 16:22:43,485 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 [2025-04-26 16:22:43,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:43,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:43,503 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 [2025-04-26 16:22:43,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,505 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2025-04-26 16:22:43,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:22:43,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:43,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:43,529 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:43,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:22:43,533 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:43,533 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:43,533 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:43,533 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:43,533 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:43,533 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,533 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:43,533 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:43,533 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:22:43,533 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:43,533 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:43,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,567 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:43,568 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:43,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,570 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2025-04-26 16:22:43,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:22:43,572 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 [2025-04-26 16:22:43,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:43,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:43,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:43,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:43,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:43,582 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:43,582 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:43,583 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:43,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:22:43,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,625 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2025-04-26 16:22:43,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:22:43,627 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 [2025-04-26 16:22:43,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:43,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:43,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:43,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:43,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:43,638 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:43,638 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:43,640 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:43,641 INFO L436 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-04-26 16:22:43,641 INFO L437 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:22:43,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,644 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2025-04-26 16:22:43,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:22:43,645 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:43,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:22:43,649 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:43,649 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:43,649 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c2) = 1*c2 Supporting invariants [] [2025-04-26 16:22:43,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:22:43,655 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:43,666 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:43,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:43,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:43,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:43,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:43,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:43,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:43,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:43,680 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:43,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:43,683 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:43,683 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 303 transitions. cyclomatic complexity: 241 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,707 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 303 transitions. cyclomatic complexity: 241. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 362 states and 1264 transitions. Complement of second has 5 states. [2025-04-26 16:22:43,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2025-04-26 16:22:43,711 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:22:43,711 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:43,711 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:22:43,712 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:43,712 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:22:43,712 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:43,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 362 states and 1264 transitions. [2025-04-26 16:22:43,717 INFO L131 ngComponentsAnalysis]: Automaton has 48 accepting balls. 104 [2025-04-26 16:22:43,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 362 states to 330 states and 1149 transitions. [2025-04-26 16:22:43,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 181 [2025-04-26 16:22:43,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 250 [2025-04-26 16:22:43,726 INFO L74 IsDeterministic]: Start isDeterministic. Operand 330 states and 1149 transitions. [2025-04-26 16:22:43,726 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:43,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 330 states and 1149 transitions. [2025-04-26 16:22:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states and 1149 transitions. [2025-04-26 16:22:43,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 233. [2025-04-26 16:22:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 233 states have (on average 3.699570815450644) internal successors, (in total 862), 232 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 862 transitions. [2025-04-26 16:22:43,744 INFO L240 hiAutomatonCegarLoop]: Abstraction has 233 states and 862 transitions. [2025-04-26 16:22:43,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:22:43,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:22:43,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:22:43,744 INFO L87 Difference]: Start difference. First operand 233 states and 862 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (in total 5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:22:43,761 INFO L93 Difference]: Finished difference Result 238 states and 735 transitions. [2025-04-26 16:22:43,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 735 transitions. [2025-04-26 16:22:43,764 INFO L131 ngComponentsAnalysis]: Automaton has 48 accepting balls. 104 [2025-04-26 16:22:43,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 185 states and 582 transitions. [2025-04-26 16:22:43,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 185 [2025-04-26 16:22:43,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 185 [2025-04-26 16:22:43,766 INFO L74 IsDeterministic]: Start isDeterministic. Operand 185 states and 582 transitions. [2025-04-26 16:22:43,771 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:43,772 INFO L218 hiAutomatonCegarLoop]: Abstraction has 185 states and 582 transitions. [2025-04-26 16:22:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 582 transitions. [2025-04-26 16:22:43,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 148. [2025-04-26 16:22:43,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 3.2635135135135136) internal successors, (in total 483), 147 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:43,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 483 transitions. [2025-04-26 16:22:43,780 INFO L240 hiAutomatonCegarLoop]: Abstraction has 148 states and 483 transitions. [2025-04-26 16:22:43,780 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:22:43,782 INFO L438 stractBuchiCegarLoop]: Abstraction has 148 states and 483 transitions. [2025-04-26 16:22:43,782 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:22:43,782 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 483 transitions. [2025-04-26 16:22:43,783 INFO L131 ngComponentsAnalysis]: Automaton has 40 accepting balls. 88 [2025-04-26 16:22:43,783 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:43,783 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:43,784 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:22:43,784 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:43,784 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:22:43,784 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[73] L18-->L25: Formula: (and (= (+ v_c1_11 1) v_c1_12) (< 0 v_c1_12) (= v_pos_16 (+ v_pos_15 1))) InVars {pos=v_pos_16, c1=v_c1_12} OutVars{pos=v_pos_15, c1=v_c1_11} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:22:43,784 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2889119, now seen corresponding path program 1 times [2025-04-26 16:22:43,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:43,784 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469600736] [2025-04-26 16:22:43,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:43,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:43,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:43,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:43,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,789 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:43,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:43,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:43,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:43,793 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,793 INFO L85 PathProgramCache]: Analyzing trace with hash 3235, now seen corresponding path program 2 times [2025-04-26 16:22:43,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:43,793 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914527054] [2025-04-26 16:22:43,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:22:43,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:43,795 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:43,796 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:43,796 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:22:43,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,796 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:43,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:43,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:43,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:43,800 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1518521663, now seen corresponding path program 1 times [2025-04-26 16:22:43,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:43,800 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19023332] [2025-04-26 16:22:43,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:43,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:43,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:22:43,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:43,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,808 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:43,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:22:43,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:43,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:43,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:43,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:43,841 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:43,842 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:43,842 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:43,842 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:43,842 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:43,842 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,842 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:43,842 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:43,842 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:22:43,842 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:43,842 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:43,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,879 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:43,879 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:43,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,883 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2025-04-26 16:22:43,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:22:43,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:43,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:43,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:22:43,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,910 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2025-04-26 16:22:43,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:22:43,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:43,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:43,936 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:43,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:22:43,940 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:43,940 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:43,940 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:43,940 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:43,940 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:43,940 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,940 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:43,940 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:43,940 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:22:43,940 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:43,940 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:43,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:43,971 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:43,971 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:43,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,973 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2025-04-26 16:22:43,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:22:43,975 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 [2025-04-26 16:22:43,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:43,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:43,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:43,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:43,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:43,987 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:43,987 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:43,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:43,990 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:43,990 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:22:43,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:43,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:43,992 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2025-04-26 16:22:43,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 16:22:43,995 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:43,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:44,000 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:44,000 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:44,000 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c1) = 1*c1 Supporting invariants [] [2025-04-26 16:22:44,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:44,006 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:44,017 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:44,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:44,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,030 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:44,032 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:44,032 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 148 states and 483 transitions. cyclomatic complexity: 375 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,062 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 148 states and 483 transitions. cyclomatic complexity: 375. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 497 states and 1748 transitions. Complement of second has 5 states. [2025-04-26 16:22:44,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:44,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-04-26 16:22:44,064 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:22:44,064 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,064 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:22:44,064 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,064 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 4 letters. Loop has 4 letters. [2025-04-26 16:22:44,064 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 497 states and 1748 transitions. [2025-04-26 16:22:44,072 INFO L131 ngComponentsAnalysis]: Automaton has 70 accepting balls. 148 [2025-04-26 16:22:44,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 497 states to 451 states and 1580 transitions. [2025-04-26 16:22:44,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2025-04-26 16:22:44,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 377 [2025-04-26 16:22:44,098 INFO L74 IsDeterministic]: Start isDeterministic. Operand 451 states and 1580 transitions. [2025-04-26 16:22:44,098 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:44,098 INFO L218 hiAutomatonCegarLoop]: Abstraction has 451 states and 1580 transitions. [2025-04-26 16:22:44,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states and 1580 transitions. [2025-04-26 16:22:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 296. [2025-04-26 16:22:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 296 states have (on average 3.8412162162162162) internal successors, (in total 1137), 295 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 1137 transitions. [2025-04-26 16:22:44,116 INFO L240 hiAutomatonCegarLoop]: Abstraction has 296 states and 1137 transitions. [2025-04-26 16:22:44,116 INFO L438 stractBuchiCegarLoop]: Abstraction has 296 states and 1137 transitions. [2025-04-26 16:22:44,116 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:22:44,117 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 296 states and 1137 transitions. [2025-04-26 16:22:44,120 INFO L131 ngComponentsAnalysis]: Automaton has 48 accepting balls. 104 [2025-04-26 16:22:44,120 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:44,120 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:44,120 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:22:44,120 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:44,121 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[84] L64-1-->L45: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[76] L45-->L38: Formula: v_v_assert_3 InVars {v_assert=v_v_assert_3} OutVars{v_assert=v_v_assert_3} AuxVars[] AssignedVars[]" "[79] L38-->L45: Formula: (and (= (+ v_c2_16 1) v_c2_15) (= v_pos_31 (+ v_pos_32 1))) InVars {pos=v_pos_32, c2=v_c2_16} OutVars{pos=v_pos_31, c2=v_c2_15} AuxVars[] AssignedVars[c2, pos]" [2025-04-26 16:22:44,121 INFO L754 eck$LassoCheckResult]: Loop: "[76] L45-->L38: Formula: v_v_assert_3 InVars {v_assert=v_v_assert_3} OutVars{v_assert=v_v_assert_3} AuxVars[] AssignedVars[]" "[78] L38-->L45: Formula: (and (< 0 v_c2_12) (= (+ v_c2_11 1) v_c2_12) (= (+ v_pos_27 1) v_pos_28)) InVars {pos=v_pos_28, c2=v_c2_12} OutVars{pos=v_pos_27, c2=v_c2_11} AuxVars[] AssignedVars[c2, pos]" [2025-04-26 16:22:44,121 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,121 INFO L85 PathProgramCache]: Analyzing trace with hash 89575323, now seen corresponding path program 1 times [2025-04-26 16:22:44,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:44,121 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076777766] [2025-04-26 16:22:44,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:44,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:44,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:44,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:44,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,126 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:44,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:44,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:44,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:44,131 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 2 times [2025-04-26 16:22:44,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:44,132 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249183801] [2025-04-26 16:22:44,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:22:44,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:44,133 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,134 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,134 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:22:44,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,134 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:44,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:44,137 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,137 INFO L85 PathProgramCache]: Analyzing trace with hash 182541917, now seen corresponding path program 1 times [2025-04-26 16:22:44,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:44,137 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102890447] [2025-04-26 16:22:44,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:44,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:44,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:22:44,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:22:44,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,143 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:44,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:22:44,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:22:44,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:44,171 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:44,171 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:44,171 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:44,171 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:44,171 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:44,171 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,171 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:44,171 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:44,171 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:22:44,171 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:44,171 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:44,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,215 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:44,215 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:44,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,218 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2025-04-26 16:22:44,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:22:44,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:44,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:44,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-04-26 16:22:44,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,250 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2025-04-26 16:22:44,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:22:44,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:44,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:44,281 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:44,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 16:22:44,285 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:44,285 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:44,285 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:44,285 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:44,285 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:44,285 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,285 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:44,285 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:44,285 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:22:44,285 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:44,285 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:44,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,322 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:44,322 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:44,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,324 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2025-04-26 16:22:44,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:22:44,327 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 [2025-04-26 16:22:44,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:44,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:44,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:44,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:44,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:44,338 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:44,338 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:44,340 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:44,346 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:44,347 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:22:44,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,349 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2025-04-26 16:22:44,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 16:22:44,351 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:44,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 16:22:44,355 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:44,355 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:44,355 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c2) = 1*c2 Supporting invariants [] [2025-04-26 16:22:44,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 16:22:44,365 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:44,376 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:44,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:44,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,393 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:44,395 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:44,395 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 296 states and 1137 transitions. cyclomatic complexity: 910 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,437 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 296 states and 1137 transitions. cyclomatic complexity: 910. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1025 states and 3968 transitions. Complement of second has 5 states. [2025-04-26 16:22:44,437 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:44,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2025-04-26 16:22:44,439 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:22:44,439 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,439 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:22:44,439 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,439 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:22:44,439 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1025 states and 3968 transitions. [2025-04-26 16:22:44,450 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 152 [2025-04-26 16:22:44,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1025 states to 905 states and 3505 transitions. [2025-04-26 16:22:44,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 464 [2025-04-26 16:22:44,459 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 556 [2025-04-26 16:22:44,459 INFO L74 IsDeterministic]: Start isDeterministic. Operand 905 states and 3505 transitions. [2025-04-26 16:22:44,459 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:44,459 INFO L218 hiAutomatonCegarLoop]: Abstraction has 905 states and 3505 transitions. [2025-04-26 16:22:44,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states and 3505 transitions. [2025-04-26 16:22:44,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 618. [2025-04-26 16:22:44,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 618 states have (on average 4.179611650485437) internal successors, (in total 2583), 617 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 2583 transitions. [2025-04-26 16:22:44,485 INFO L240 hiAutomatonCegarLoop]: Abstraction has 618 states and 2583 transitions. [2025-04-26 16:22:44,485 INFO L438 stractBuchiCegarLoop]: Abstraction has 618 states and 2583 transitions. [2025-04-26 16:22:44,485 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:22:44,485 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 618 states and 2583 transitions. [2025-04-26 16:22:44,489 INFO L131 ngComponentsAnalysis]: Automaton has 56 accepting balls. 120 [2025-04-26 16:22:44,490 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:44,490 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:44,490 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2025-04-26 16:22:44,490 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:44,491 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:22:44,491 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[73] L18-->L25: Formula: (and (= (+ v_c1_11 1) v_c1_12) (< 0 v_c1_12) (= v_pos_16 (+ v_pos_15 1))) InVars {pos=v_pos_16, c1=v_c1_12} OutVars{pos=v_pos_15, c1=v_c1_11} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:22:44,491 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1518521662, now seen corresponding path program 2 times [2025-04-26 16:22:44,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:44,491 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019407161] [2025-04-26 16:22:44,491 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:22:44,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:44,495 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-04-26 16:22:44,497 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:44,497 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-26 16:22:44,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,498 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:44,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:22:44,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:44,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:44,504 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,504 INFO L85 PathProgramCache]: Analyzing trace with hash 3235, now seen corresponding path program 3 times [2025-04-26 16:22:44,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:44,504 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832209260] [2025-04-26 16:22:44,504 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-26 16:22:44,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:44,509 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,510 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,510 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-26 16:22:44,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,510 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:44,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:44,515 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,515 INFO L85 PathProgramCache]: Analyzing trace with hash 989565732, now seen corresponding path program 2 times [2025-04-26 16:22:44,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:44,515 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015229590] [2025-04-26 16:22:44,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:22:44,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:44,521 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes. [2025-04-26 16:22:44,523 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:22:44,523 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-26 16:22:44,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,523 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:44,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:22:44,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:22:44,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:44,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:44,558 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:44,559 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:44,559 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:44,559 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:44,559 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:44,559 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,559 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:44,559 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:44,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration5_Loop [2025-04-26 16:22:44,559 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:44,559 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:44,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,590 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:44,590 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:44,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,593 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2025-04-26 16:22:44,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 16:22:44,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:44,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:44,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:44,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,613 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2025-04-26 16:22:44,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 16:22:44,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:44,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:44,638 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:44,638 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=0} Generalized eigenvectors: [{pos=7}, {pos=-8}, {pos=0}] Lambdas: [1, 1, 0] Nus: [0, 0] [2025-04-26 16:22:44,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:22:44,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,645 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2025-04-26 16:22:44,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-04-26 16:22:44,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:44,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:44,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-04-26 16:22:44,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,665 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2025-04-26 16:22:44,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-04-26 16:22:44,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:44,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:44,689 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:44,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 16:22:44,693 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:44,693 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:44,693 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:44,693 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:44,693 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:44,693 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,693 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:44,693 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:44,693 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration5_Loop [2025-04-26 16:22:44,693 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:44,693 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:44,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:44,721 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:44,721 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:44,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,724 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2025-04-26 16:22:44,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-04-26 16:22:44,726 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 [2025-04-26 16:22:44,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:44,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:44,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:44,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:44,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:44,736 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:44,736 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:44,738 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:44,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-04-26 16:22:44,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,745 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2025-04-26 16:22:44,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-04-26 16:22:44,747 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 [2025-04-26 16:22:44,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:44,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:44,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:44,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:44,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:44,757 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:44,757 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:44,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:44,760 INFO L436 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-04-26 16:22:44,760 INFO L437 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:22:44,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:44,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:44,762 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2025-04-26 16:22:44,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-04-26 16:22:44,763 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:44,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:44,766 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:44,768 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:44,768 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c1) = 1*c1 Supporting invariants [] [2025-04-26 16:22:44,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-04-26 16:22:44,773 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:44,792 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:22:44,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:44,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,810 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:44,813 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:44,813 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 618 states and 2583 transitions. cyclomatic complexity: 2089 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,847 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 618 states and 2583 transitions. cyclomatic complexity: 2089. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1557 states and 6254 transitions. Complement of second has 5 states. [2025-04-26 16:22:44,847 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-04-26 16:22:44,848 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:22:44,848 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,848 INFO L699 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-04-26 16:22:44,862 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:22:44,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:44,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,885 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:44,886 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:44,887 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 618 states and 2583 transitions. cyclomatic complexity: 2089 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,914 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 618 states and 2583 transitions. cyclomatic complexity: 2089. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1557 states and 6254 transitions. Complement of second has 5 states. [2025-04-26 16:22:44,915 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:44,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-04-26 16:22:44,916 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:22:44,916 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,916 INFO L699 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-04-26 16:22:44,923 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:44,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:22:44,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:44,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:44,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:44,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:44,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:44,936 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:44,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:44,938 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:22:44,938 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 618 states and 2583 transitions. cyclomatic complexity: 2089 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,968 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 618 states and 2583 transitions. cyclomatic complexity: 2089. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1758 states and 7413 transitions. Complement of second has 4 states. [2025-04-26 16:22:44,968 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:22:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2025-04-26 16:22:44,969 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:22:44,969 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,969 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 8 letters. Loop has 2 letters. [2025-04-26 16:22:44,969 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,969 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 16:22:44,969 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:44,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1758 states and 7413 transitions. [2025-04-26 16:22:44,985 INFO L131 ngComponentsAnalysis]: Automaton has 67 accepting balls. 240 [2025-04-26 16:22:44,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1758 states to 1204 states and 4886 transitions. [2025-04-26 16:22:44,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 461 [2025-04-26 16:22:44,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 614 [2025-04-26 16:22:44,997 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1204 states and 4886 transitions. [2025-04-26 16:22:44,997 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:44,997 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1204 states and 4886 transitions. [2025-04-26 16:22:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states and 4886 transitions. [2025-04-26 16:22:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 473. [2025-04-26 16:22:45,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 473 states have (on average 4.156448202959831) internal successors, (in total 1966), 472 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1966 transitions. [2025-04-26 16:22:45,012 INFO L240 hiAutomatonCegarLoop]: Abstraction has 473 states and 1966 transitions. [2025-04-26 16:22:45,012 INFO L438 stractBuchiCegarLoop]: Abstraction has 473 states and 1966 transitions. [2025-04-26 16:22:45,012 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 16:22:45,012 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 473 states and 1966 transitions. [2025-04-26 16:22:45,015 INFO L131 ngComponentsAnalysis]: Automaton has 40 accepting balls. 170 [2025-04-26 16:22:45,015 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:45,015 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:45,015 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:22:45,015 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:45,016 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:22:45,016 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:22:45,016 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:45,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2889119, now seen corresponding path program 3 times [2025-04-26 16:22:45,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:45,016 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547168482] [2025-04-26 16:22:45,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-26 16:22:45,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:45,018 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:45,019 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:45,019 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-26 16:22:45,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,019 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:45,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:45,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:45,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:45,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:45,023 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash 3236, now seen corresponding path program 1 times [2025-04-26 16:22:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:45,023 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806913027] [2025-04-26 16:22:45,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:45,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:45,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:45,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:45,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,026 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:45,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:45,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:45,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:45,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:45,030 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:45,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1518521662, now seen corresponding path program 4 times [2025-04-26 16:22:45,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:45,030 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202759277] [2025-04-26 16:22:45,030 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-26 16:22:45,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:45,033 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 6 statements into 2 equivalence classes. [2025-04-26 16:22:45,035 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:45,035 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-26 16:22:45,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,035 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:45,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:22:45,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:22:45,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:45,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:45,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:45,053 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:45,053 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:45,053 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:45,053 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:45,053 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:45,053 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,053 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:45,053 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:45,053 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration6_Loop [2025-04-26 16:22:45,053 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:45,053 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:45,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,087 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:45,087 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:45,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,090 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2025-04-26 16:22:45,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-04-26 16:22:45,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-04-26 16:22:45,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,111 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2025-04-26 16:22:45,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-04-26 16:22:45,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:45,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,139 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,139 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=0} Generalized eigenvectors: [{pos=-3}, {pos=2}, {pos=2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2025-04-26 16:22:45,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-04-26 16:22:45,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,147 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2025-04-26 16:22:45,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-04-26 16:22:45,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,149 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,166 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,166 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_11=1} Honda state: {v_rep(ite v_assert 1 0)_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:45,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-04-26 16:22:45,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,173 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2025-04-26 16:22:45,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-04-26 16:22:45,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:45,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,193 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2025-04-26 16:22:45,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-04-26 16:22:45,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:45,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,217 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,217 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c1=0} Honda state: {c1=0} Generalized eigenvectors: [{c1=3}, {c1=3}, {c1=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:22:45,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-04-26 16:22:45,259 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:45,259 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:45,259 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:45,259 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:45,259 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:45,259 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,259 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:45,259 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:45,259 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration6_Lasso [2025-04-26 16:22:45,259 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:45,259 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:45,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,268 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:45,309 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:45,309 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:45,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,311 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2025-04-26 16:22:45,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-04-26 16:22:45,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,329 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,329 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c2=0} Honda state: {c2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:45,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-04-26 16:22:45,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,336 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2025-04-26 16:22:45,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-04-26 16:22:45,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,354 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,354 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_12=1} Honda state: {v_rep(ite v_assert 1 0)_12=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:45,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-04-26 16:22:45,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,361 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2025-04-26 16:22:45,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-04-26 16:22:45,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-04-26 16:22:45,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,381 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2025-04-26 16:22:45,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-04-26 16:22:45,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:45,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,407 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,407 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=1} Generalized eigenvectors: [{pos=-3}, {pos=2}, {pos=2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2025-04-26 16:22:45,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2025-04-26 16:22:45,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,415 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2025-04-26 16:22:45,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-04-26 16:22:45,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,427 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,428 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork2_thidvar0=0} Honda state: {thread1Thread1of1ForFork2_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:45,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2025-04-26 16:22:45,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,435 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2025-04-26 16:22:45,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2025-04-26 16:22:45,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:45,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:45,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:45,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:45,455 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2025-04-26 16:22:45,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2025-04-26 16:22:45,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:45,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:45,483 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:45,484 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c1=0} Honda state: {c1=1} Generalized eigenvectors: [{c1=3}, {c1=3}, {c1=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:22:45,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2025-04-26 16:22:45,502 INFO L201 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:22:45 BoogieIcfgContainer [2025-04-26 16:22:45,502 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:22:45,502 INFO L158 Benchmark]: Toolchain (without parser) took 3558.01ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 86.8MB in the beginning and 75.1MB in the end (delta: 11.7MB). Peak memory consumption was 30.6MB. Max. memory is 8.0GB. [2025-04-26 16:22:45,502 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:45,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.96ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:45,503 INFO L158 Benchmark]: Boogie Preprocessor took 22.86ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 83.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:22:45,503 INFO L158 Benchmark]: RCFGBuilder took 217.06ms. Allocated memory is still 159.4MB. Free memory was 83.9MB in the beginning and 74.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:22:45,503 INFO L158 Benchmark]: BuchiAutomizer took 3280.63ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 73.9MB in the beginning and 75.1MB in the end (delta: -1.2MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2025-04-26 16:22:45,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.96ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 22.86ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 83.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 217.06ms. Allocated memory is still 159.4MB. Free memory was 83.9MB in the beginning and 74.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3280.63ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 73.9MB in the beginning and 75.1MB in the end (delta: -1.2MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 1395 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 190 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 125 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 5 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function c1 and consists of 4 locations. One deterministic module has affine ranking function c2 and consists of 3 locations. One deterministic module has affine ranking function c1 and consists of 3 locations. One deterministic module has affine ranking function c2 and consists of 3 locations. One nondeterministic module has affine ranking function c1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 473 locations. - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {c1=0, c2=0, freshIdentifier7=0, (if v_assert then 1 else 0)=1, pos=0} State at position 1 is {c1=1, c2=0, freshIdentifier8=1, (if v_assert then 1 else 0)=1, pos=1} For i>1, the state at position i is {c1=1 + sum_{k=0}^i 3*0^k + 3 + 3*k*0^(k-1) + -5, c2=0 + sum_{k=0}^i 0, freshIdentifier9=1 + sum_{k=0}^i 0, (if v_assert then 1 else 0)=1 + sum_{k=0}^i 0, pos=1 + sum_{k=0}^i -3 + 2*0^k + 2 + 2*k*0^(k-1)} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 0, 1, 0, 1, 1] Mus: [0, 1, 0, 1, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L63] 0 assume (pos == c1 && pos == c2 && pos == 0) && v_assert == true; [L64] FORK 0 fork 1 thread1(); [L17] COND TRUE 1 v_assert [L20] 1 pos := pos + 1; [L21] 1 c1 := c1 + 1; Loop: [L17] COND TRUE v_assert [L20] pos := pos + 1; [L21] c1 := c1 + 1; End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-04-26 16:22:45,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...