/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/test/hard1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:01,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:02,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:02,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:02,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:02,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:02,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:02,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:02,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:02,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:02,055 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:02,055 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:02,055 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:02,056 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:02,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:02,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:02,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:02,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:02,058 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:02,058 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:02,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:02,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:02,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:02,261 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:02,261 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:02,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl [2025-04-26 16:24:02,263 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl' [2025-04-26 16:24:02,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:02,281 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:02,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:02,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:02,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:02,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,311 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:02,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:02,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:02,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:02,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:02,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,324 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:02,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:02,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:02,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:02,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/1) ... [2025-04-26 16:24:02,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:02,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:02,359 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 16:24:02,361 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 16:24:02,382 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:02,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:02,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:02,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:24:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:24:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:24:02,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:24:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:24:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:24:02,384 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 16:24:02,415 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:02,417 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:02,493 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:02,493 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:02,514 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:02,518 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:02,518 INFO L201 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:02 BoogieIcfgContainer [2025-04-26 16:24:02,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:02,519 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:02,519 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:02,524 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:02,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:02,524 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:02" (1/2) ... [2025-04-26 16:24:02,525 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f3d02c0 and model type hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:02, skipping insertion in model container [2025-04-26 16:24:02,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:02,525 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:02" (2/2) ... [2025-04-26 16:24:02,527 INFO L376 chiAutomizerObserver]: Analyzing ICFG hard1.wvr.bpl [2025-04-26 16:24:02,574 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-26 16:24:02,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 102 flow [2025-04-26 16:24:02,622 INFO L116 PetriNetUnfolderBase]: 4/29 cut-off events. [2025-04-26 16:24:02,624 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-26 16:24:02,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2025-04-26 16:24:02,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 102 flow [2025-04-26 16:24:02,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2025-04-26 16:24:02,630 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 38 places, 29 transitions, 82 flow [2025-04-26 16:24:02,638 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:02,638 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:02,638 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:02,638 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:02,638 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:02,638 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:02,638 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:02,638 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:02,639 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:02,745 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 380 [2025-04-26 16:24:02,745 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:02,745 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:02,748 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:02,748 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:02,748 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:02,748 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 430 states, but on-demand construction may add more states [2025-04-26 16:24:02,766 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 380 [2025-04-26 16:24:02,767 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:02,767 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:02,769 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:02,769 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:02,773 INFO L752 eck$LassoCheckResult]: Stem: "[71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[]" "[96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:24:02,773 INFO L754 eck$LassoCheckResult]: Loop: "[79] L19-1-->L19: Formula: (< 0 v_n1_1) InVars {n1=v_n1_1} OutVars{n1=v_n1_1} AuxVars[] AssignedVars[]" "[81] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= v_p1_7 (ite .cse0 (+ v_p1_8 v_m_5) v_p1_8)) (= v_n1_12 (ite .cse0 (+ (- 1) v_n1_13) v_n1_13)))) InVars {m=v_m_5, p1=v_p1_8, n1=v_n1_13} OutVars{m=v_m_5, p1=v_p1_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1]" [2025-04-26 16:24:02,779 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash 3258, now seen corresponding path program 1 times [2025-04-26 16:24:02,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:02,784 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619827336] [2025-04-26 16:24:02,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:02,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:02,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:02,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:02,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:02,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:02,835 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:02,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:02,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:02,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:02,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:02,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:02,860 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:02,861 INFO L85 PathProgramCache]: Analyzing trace with hash 3491, now seen corresponding path program 1 times [2025-04-26 16:24:02,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:02,861 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442275760] [2025-04-26 16:24:02,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:02,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:02,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:02,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:02,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:02,876 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:02,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:02,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:02,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:02,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:02,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:02,886 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash 3133468, now seen corresponding path program 1 times [2025-04-26 16:24:02,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:02,886 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266721313] [2025-04-26 16:24:02,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:02,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:02,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:02,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:02,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:02,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:02,896 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:02,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:02,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:02,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:02,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:02,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:02,973 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:02,974 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:02,974 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:02,974 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:02,974 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:02,974 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:02,974 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:02,974 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:02,975 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:02,975 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:02,975 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:02,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:02,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:03,041 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:03,041 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:03,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,045 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 16:24:03,072 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 16:24:03,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:03,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:03,091 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 16:24:03,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,093 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 16:24:03,094 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 16:24:03,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:03,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:03,123 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:03,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:03,128 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:03,128 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:03,128 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:03,128 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:03,128 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:03,128 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,128 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:03,128 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:03,129 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:03,129 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:03,129 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:03,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:03,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:03,171 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:03,173 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:03,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,176 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 16:24:03,179 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 16:24:03,181 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 16:24:03,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:03,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:03,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:03,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:03,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:03,196 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:03,196 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:03,199 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:03,204 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:03,204 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:03,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,209 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 16:24:03,210 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 16:24:03,211 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:03,214 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:24:03,215 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 16:24:03,215 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:03,216 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:03,216 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n1) = 1*n1 Supporting invariants [] [2025-04-26 16:24:03,222 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 16:24:03,225 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:03,249 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:03,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:03,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:03,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:03,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:03,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:03,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:03,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:03,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:03,295 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:03,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:03,316 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 16:24:03,365 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:03,369 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 430 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 16:24:03,506 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 430 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 1750 states and 7122 transitions. Complement of second has 7 states. [2025-04-26 16:24:03,507 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:03,510 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 16:24:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2025-04-26 16:24:03,514 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:24:03,515 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:03,515 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:24:03,515 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:03,515 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:24:03,515 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:03,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1750 states and 7122 transitions. [2025-04-26 16:24:03,540 INFO L131 ngComponentsAnalysis]: Automaton has 147 accepting balls. 453 [2025-04-26 16:24:03,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1750 states to 1065 states and 4460 transitions. [2025-04-26 16:24:03,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 510 [2025-04-26 16:24:03,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 760 [2025-04-26 16:24:03,566 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1065 states and 4460 transitions. [2025-04-26 16:24:03,566 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:03,566 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1065 states and 4460 transitions. [2025-04-26 16:24:03,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states and 4460 transitions. [2025-04-26 16:24:03,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 740. [2025-04-26 16:24:03,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 740 states have (on average 4.3175675675675675) internal successors, (in total 3195), 739 states have internal predecessors, (3195), 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 16:24:03,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 3195 transitions. [2025-04-26 16:24:03,637 INFO L240 hiAutomatonCegarLoop]: Abstraction has 740 states and 3195 transitions. [2025-04-26 16:24:03,637 INFO L438 stractBuchiCegarLoop]: Abstraction has 740 states and 3195 transitions. [2025-04-26 16:24:03,637 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:03,637 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 740 states and 3195 transitions. [2025-04-26 16:24:03,643 INFO L131 ngComponentsAnalysis]: Automaton has 130 accepting balls. 413 [2025-04-26 16:24:03,643 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:03,643 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:03,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:03,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:03,644 INFO L752 eck$LassoCheckResult]: Stem: "[71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[]" "[96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:24:03,644 INFO L754 eck$LassoCheckResult]: Loop: "[83] L30-1-->L30: Formula: (< 1 v_n1_6) InVars {n1=v_n1_6} OutVars{n1=v_n1_6} AuxVars[] AssignedVars[]" "[85] L30-->L30-1: Formula: (let ((.cse0 (< 1 v_n1_17))) (and (= v_n1_16 (ite .cse0 (+ (- 2) v_n1_17) v_n1_17)) (= (ite .cse0 (+ v_p1_12 (* 2 v_m_7)) v_p1_12) v_p1_11))) InVars {m=v_m_7, p1=v_p1_12, n1=v_n1_17} OutVars{m=v_m_7, p1=v_p1_11, n1=v_n1_16} AuxVars[] AssignedVars[p1, n1]" [2025-04-26 16:24:03,645 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash 101097, now seen corresponding path program 1 times [2025-04-26 16:24:03,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:03,645 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430574017] [2025-04-26 16:24:03,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:03,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:03,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:03,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:03,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:03,649 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:03,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:03,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:03,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:03,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:03,656 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:03,656 INFO L85 PathProgramCache]: Analyzing trace with hash 3619, now seen corresponding path program 1 times [2025-04-26 16:24:03,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:03,657 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72287063] [2025-04-26 16:24:03,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:03,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:03,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:03,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:03,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:03,661 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:03,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:03,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:03,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:03,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:03,668 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:03,668 INFO L85 PathProgramCache]: Analyzing trace with hash 97156875, now seen corresponding path program 1 times [2025-04-26 16:24:03,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:03,668 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667965929] [2025-04-26 16:24:03,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:03,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:03,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:03,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:03,675 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:03,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:03,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:03,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:03,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:03,715 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:03,715 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:03,715 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:03,715 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:03,715 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:03,715 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,715 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:03,715 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:03,715 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:03,715 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:03,715 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:03,716 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:03,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:03,753 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:03,753 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:03,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,758 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 16:24:03,759 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 16:24:03,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:03,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:03,772 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:03,772 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p1=0} Honda state: {m=0, p1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:03,779 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 16:24:03,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,781 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 16:24:03,783 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 16:24:03,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:03,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:03,805 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 16:24:03,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,807 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 16:24:03,808 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 16:24:03,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:03,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:03,832 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:03,837 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 16:24:03,837 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:03,837 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:03,837 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:03,837 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:03,837 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:03,838 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,838 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:03,838 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:03,838 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:03,838 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:03,838 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:03,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:03,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:03,870 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:03,870 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:03,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,872 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 16:24:03,873 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 16:24:03,875 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 16:24:03,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:03,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:03,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:03,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:03,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:03,886 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:03,886 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:03,887 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:03,893 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 16:24:03,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,895 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 16:24:03,896 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 16:24:03,897 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 16:24:03,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:03,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:03,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:03,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:03,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:03,907 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:03,908 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:03,909 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:03,912 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:03,912 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:03,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:03,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:03,914 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 16:24:03,915 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 16:24:03,916 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:03,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:03,920 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:03,920 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:03,920 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n1) = 1*n1 Supporting invariants [] [2025-04-26 16:24:03,925 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 16:24:03,926 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:03,939 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:03,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:03,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:03,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:03,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:03,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:03,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:03,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:03,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:03,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:03,960 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:03,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:03,974 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 16:24:03,975 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:03,975 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 740 states and 3195 transitions. cyclomatic complexity: 2629 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 16:24:04,080 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 740 states and 3195 transitions. cyclomatic complexity: 2629. 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 2427 states and 10938 transitions. Complement of second has 6 states. [2025-04-26 16:24:04,081 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:04,081 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 16:24:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2025-04-26 16:24:04,081 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:24:04,082 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:04,082 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:24:04,082 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:04,082 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:24:04,082 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:04,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2427 states and 10938 transitions. [2025-04-26 16:24:04,129 INFO L131 ngComponentsAnalysis]: Automaton has 169 accepting balls. 396 [2025-04-26 16:24:04,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2427 states to 1643 states and 7387 transitions. [2025-04-26 16:24:04,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 592 [2025-04-26 16:24:04,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 849 [2025-04-26 16:24:04,153 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1643 states and 7387 transitions. [2025-04-26 16:24:04,153 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:04,153 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1643 states and 7387 transitions. [2025-04-26 16:24:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states and 7387 transitions. [2025-04-26 16:24:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1386. [2025-04-26 16:24:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1386 states have (on average 4.623376623376624) internal successors, (in total 6408), 1385 states have internal predecessors, (6408), 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 16:24:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 6408 transitions. [2025-04-26 16:24:04,193 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1386 states and 6408 transitions. [2025-04-26 16:24:04,193 INFO L438 stractBuchiCegarLoop]: Abstraction has 1386 states and 6408 transitions. [2025-04-26 16:24:04,193 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:04,193 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1386 states and 6408 transitions. [2025-04-26 16:24:04,201 INFO L131 ngComponentsAnalysis]: Automaton has 169 accepting balls. 396 [2025-04-26 16:24:04,201 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:04,201 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:04,201 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:24:04,201 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:04,201 INFO L752 eck$LassoCheckResult]: Stem: "[71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[]" "[96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[102] L64-->L41-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-04-26 16:24:04,201 INFO L754 eck$LassoCheckResult]: Loop: "[87] L41-1-->L41: Formula: (< 0 v_n2_6) InVars {n2=v_n2_6} OutVars{n2=v_n2_6} AuxVars[] AssignedVars[]" "[89] L41-->L41-1: Formula: (let ((.cse0 (< 0 v_n2_13))) (and (= v_n2_12 (ite .cse0 (+ (- 1) v_n2_13) v_n2_13)) (= (ite .cse0 (+ v_p2_8 v_m_9) v_p2_8) v_p2_7))) InVars {m=v_m_9, n2=v_n2_13, p2=v_p2_8} OutVars{m=v_m_9, n2=v_n2_12, p2=v_p2_7} AuxVars[] AssignedVars[n2, p2]" [2025-04-26 16:24:04,202 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash 3134109, now seen corresponding path program 1 times [2025-04-26 16:24:04,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,202 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550363139] [2025-04-26 16:24:04,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:04,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:04,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,205 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:04,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:04,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,207 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,207 INFO L85 PathProgramCache]: Analyzing trace with hash 3747, now seen corresponding path program 1 times [2025-04-26 16:24:04,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,208 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792964764] [2025-04-26 16:24:04,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:04,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:04,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,210 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:04,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:04,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,213 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1283085761, now seen corresponding path program 1 times [2025-04-26 16:24:04,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,213 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079094078] [2025-04-26 16:24:04,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:04,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:04,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,217 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:04,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:04,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,241 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:04,241 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:04,241 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:04,241 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:04,241 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:04,241 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,241 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:04,241 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:04,241 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:24:04,241 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:04,242 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:04,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:04,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:04,267 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:04,267 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:04,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,269 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 16:24:04,271 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 16:24:04,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:04,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:04,304 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 16:24:04,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,306 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 16:24:04,307 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 16:24:04,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:04,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:04,339 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:04,343 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 16:24:04,343 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:04,343 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:04,343 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:04,343 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:04,343 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:04,343 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,343 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:04,343 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:04,343 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:24:04,343 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:04,343 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:04,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:04,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:04,372 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:04,372 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:04,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,374 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 16:24:04,376 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 16:24:04,377 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 16:24:04,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:04,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:04,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:04,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:04,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:04,388 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:04,389 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:04,390 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:04,392 INFO L436 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-04-26 16:24:04,392 INFO L437 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:24:04,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,394 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 16:24:04,396 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 16:24:04,397 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:04,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:04,400 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:04,400 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:04,400 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2) = 1*n2 Supporting invariants [] [2025-04-26 16:24:04,406 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 16:24:04,407 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:04,417 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:04,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:04,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:04,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:04,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:04,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:04,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:04,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:04,436 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:04,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:04,449 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 16:24:04,449 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:04,449 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1386 states and 6408 transitions. cyclomatic complexity: 5316 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 16:24:04,593 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1386 states and 6408 transitions. cyclomatic complexity: 5316. 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 6161 states and 28679 transitions. Complement of second has 7 states. [2025-04-26 16:24:04,594 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:04,595 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 16:24:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2025-04-26 16:24:04,595 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 83 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:24:04,596 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:04,596 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 83 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:24:04,597 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:04,597 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 83 transitions. Stem has 4 letters. Loop has 4 letters. [2025-04-26 16:24:04,597 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:04,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6161 states and 28679 transitions. [2025-04-26 16:24:04,664 INFO L131 ngComponentsAnalysis]: Automaton has 88 accepting balls. 263 [2025-04-26 16:24:04,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6161 states to 3034 states and 14284 transitions. [2025-04-26 16:24:04,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 862 [2025-04-26 16:24:04,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1132 [2025-04-26 16:24:04,703 INFO L74 IsDeterministic]: Start isDeterministic. Operand 3034 states and 14284 transitions. [2025-04-26 16:24:04,704 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:04,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3034 states and 14284 transitions. [2025-04-26 16:24:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states and 14284 transitions. [2025-04-26 16:24:04,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 2321. [2025-04-26 16:24:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2321 states have (on average 4.920723825937096) internal successors, (in total 11421), 2320 states have internal predecessors, (11421), 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 16:24:04,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 11421 transitions. [2025-04-26 16:24:04,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2321 states and 11421 transitions. [2025-04-26 16:24:04,799 INFO L438 stractBuchiCegarLoop]: Abstraction has 2321 states and 11421 transitions. [2025-04-26 16:24:04,799 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:24:04,799 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2321 states and 11421 transitions. [2025-04-26 16:24:04,814 INFO L131 ngComponentsAnalysis]: Automaton has 88 accepting balls. 263 [2025-04-26 16:24:04,814 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:04,814 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:04,814 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:24:04,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:04,815 INFO L752 eck$LassoCheckResult]: Stem: "[71] $Ultimate##0-->L63: Formula: (and (= v_n2_1 v_n1_11) (= v_p1_5 v_p2_1)) InVars {p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} OutVars{p1=v_p1_5, n2=v_n2_1, p2=v_p2_1, n1=v_n1_11} AuxVars[] AssignedVars[]" "[96] L63-->L19-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[99] L63-1-->L30-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[102] L64-->L41-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[105] L65-->L52-1: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" [2025-04-26 16:24:04,815 INFO L754 eck$LassoCheckResult]: Loop: "[91] L52-1-->L52: Formula: (< 1 v_n2_7) InVars {n2=v_n2_7} OutVars{n2=v_n2_7} AuxVars[] AssignedVars[]" "[93] L52-->L52-1: Formula: (let ((.cse0 (< 1 v_n2_17))) (and (= v_n2_16 (ite .cse0 (+ (- 2) v_n2_17) v_n2_17)) (= v_p2_11 (ite .cse0 (+ (* v_m_11 2) v_p2_12) v_p2_12)))) InVars {m=v_m_11, n2=v_n2_17, p2=v_p2_12} OutVars{m=v_m_11, n2=v_n2_16, p2=v_p2_11} AuxVars[] AssignedVars[n2, p2]" [2025-04-26 16:24:04,815 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,815 INFO L85 PathProgramCache]: Analyzing trace with hash 97157484, now seen corresponding path program 1 times [2025-04-26 16:24:04,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,815 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516429490] [2025-04-26 16:24:04,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:04,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:04,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,819 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:04,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:04,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,822 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,822 INFO L85 PathProgramCache]: Analyzing trace with hash 3875, now seen corresponding path program 1 times [2025-04-26 16:24:04,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,822 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741076815] [2025-04-26 16:24:04,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:04,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:04,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,825 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:04,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:04,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,829 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1120935474, now seen corresponding path program 1 times [2025-04-26 16:24:04,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,829 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031958558] [2025-04-26 16:24:04,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:04,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:04,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,835 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:04,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:04,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,870 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:04,870 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:04,870 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:04,870 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:04,870 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:04,870 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,870 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:04,871 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:04,871 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:24:04,871 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:04,871 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:04,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:04,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:04,897 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:04,897 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:04,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,899 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 16:24:04,901 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 16:24:04,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:04,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:04,914 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:04,914 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, p2=0} Honda state: {m=0, p2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:04,920 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 16:24:04,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,922 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 16:24:04,923 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 16:24:04,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:04,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:04,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-04-26 16:24:04,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,945 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 16:24:04,946 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 16:24:04,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:04,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:04,969 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:04,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:04,974 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:04,974 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:04,974 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:04,974 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:04,974 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:04,974 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,974 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:04,974 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:04,974 INFO L132 ssoRankerPreferences]: Filename of dumped script: hard1.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:24:04,974 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:04,974 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:04,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:04,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:05,004 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:05,004 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:05,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,006 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 16:24:05,008 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 16:24:05,009 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 16:24:05,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:05,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:05,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:05,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:05,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:05,021 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:05,021 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:05,025 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:05,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:05,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,034 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 16:24:05,038 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 16:24:05,039 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 16:24:05,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:05,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:05,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:05,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:05,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:05,050 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:05,051 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:05,052 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:05,055 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:05,055 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:05,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,058 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 16:24:05,059 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 16:24:05,060 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:05,063 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:24:05,064 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 16:24:05,064 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:05,064 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:05,064 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2) = 1*n2 Supporting invariants [] [2025-04-26 16:24:05,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:05,071 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:05,087 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:05,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:05,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:05,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:05,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:05,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:05,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:05,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:05,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:05,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:05,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:05,104 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:05,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:05,118 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 16:24:05,118 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:05,119 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 2321 states and 11421 transitions. cyclomatic complexity: 9387 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 16:24:05,267 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 2321 states and 11421 transitions. cyclomatic complexity: 9387. 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 7848 states and 38839 transitions. Complement of second has 6 states. [2025-04-26 16:24:05,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:05,270 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 16:24:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-04-26 16:24:05,270 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:24:05,270 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:05,270 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:24:05,270 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:05,270 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:24:05,270 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:05,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7848 states and 38839 transitions. [2025-04-26 16:24:05,369 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:05,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7848 states to 0 states and 0 transitions. [2025-04-26 16:24:05,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:05,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:05,369 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:05,369 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:05,369 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:05,369 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:05,369 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:05,369 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:24:05,369 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:05,369 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:05,370 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:05,374 INFO L201 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:05 BoogieIcfgContainer [2025-04-26 16:24:05,374 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:05,375 INFO L158 Benchmark]: Toolchain (without parser) took 3093.86ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 93.9MB in the beginning and 118.3MB in the end (delta: -24.4MB). Peak memory consumption was 69.4MB. Max. memory is 8.0GB. [2025-04-26 16:24:05,375 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.73ms. Allocated memory is still 167.8MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:05,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.97ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 92.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:05,376 INFO L158 Benchmark]: Boogie Preprocessor took 21.07ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 91.0MB in the end (delta: 965.2kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:24:05,376 INFO L158 Benchmark]: RCFGBuilder took 183.80ms. Allocated memory is still 167.8MB. Free memory was 90.9MB in the beginning and 80.8MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:24:05,376 INFO L158 Benchmark]: BuchiAutomizer took 2855.65ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 80.7MB in the beginning and 118.3MB in the end (delta: -37.6MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. [2025-04-26 16:24:05,377 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 0.73ms. Allocated memory is still 167.8MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.97ms. Allocated memory is still 167.8MB. Free memory was 93.9MB in the beginning and 92.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 21.07ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 91.0MB in the end (delta: 965.2kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 183.80ms. Allocated memory is still 167.8MB. Free memory was 90.9MB in the beginning and 80.8MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2855.65ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 80.7MB in the beginning and 118.3MB in the end (delta: -37.6MB). Peak memory consumption was 56.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 1295 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 181 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 85 mSDtfsCounter, 222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf96 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 41ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n1 and consists of 5 locations. One deterministic module has affine ranking function n1 and consists of 4 locations. One deterministic module has affine ranking function n2 and consists of 5 locations. One deterministic module has affine ranking function n2 and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:24:05,388 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...