/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:22:40,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:22:40,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:22:40,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:22:40,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:22:40,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:22:40,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:22:40,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:22:40,080 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:22:40,080 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:22:40,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:22:40,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:22:40,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:22:40,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:22:40,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:22:40,082 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:22:40,082 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:22:40,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:22:40,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:22:40,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:22:40,302 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:22:40,302 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:22:40,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl [2025-04-26 16:22:40,303 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl' [2025-04-26 16:22:40,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:22:40,322 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:22:40,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:40,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:22:40,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:22:40,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,357 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:22:40,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:40,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:22:40,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:22:40,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:22:40,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:22:40,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:22:40,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:22:40,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:22:40,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/1) ... [2025-04-26 16:22:40,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:40,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:22:40,429 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:22:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:22:40,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:22:40,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:22:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:22:40,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:22:40,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:22:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:22:40,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:22:40,431 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:22:40,462 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:22:40,463 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:22:40,544 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:22:40,544 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:22:40,555 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:22:40,555 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:22:40,556 INFO L201 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:40 BoogieIcfgContainer [2025-04-26 16:22:40,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:22:40,556 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:22:40,556 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:22:40,561 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:22:40,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:40,562 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:40" (1/2) ... [2025-04-26 16:22:40,564 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2afca3d2 and model type misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:22:40, skipping insertion in model container [2025-04-26 16:22:40,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:40,565 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:40" (2/2) ... [2025-04-26 16:22:40,566 INFO L376 chiAutomizerObserver]: Analyzing ICFG misc-2-unrolled.wvr.bpl [2025-04-26 16:22:40,614 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:22:40,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 68 flow [2025-04-26 16:22:40,673 INFO L116 PetriNetUnfolderBase]: 2/23 cut-off events. [2025-04-26 16:22:40,674 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:22:40,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2025-04-26 16:22:40,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 68 flow [2025-04-26 16:22:40,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2025-04-26 16:22:40,682 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 28 places, 23 transitions, 58 flow [2025-04-26 16:22:40,692 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:22:40,692 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:22:40,692 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:22:40,693 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:22:40,693 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:22:40,693 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:22:40,693 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:22:40,693 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:22:40,695 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:22:40,732 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 55 [2025-04-26 16:22:40,733 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:40,733 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:40,740 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:40,740 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-04-26 16:22:40,740 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:22:40,741 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 69 states, but on-demand construction may add more states [2025-04-26 16:22:40,747 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 55 [2025-04-26 16:22:40,747 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:40,747 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:40,747 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:40,747 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-04-26 16:22:40,753 INFO L752 eck$LassoCheckResult]: Stem: "[46] $Ultimate##0-->L40: Formula: (and (= v_i1_7 v_pos_9) (= v_i2_7 v_pos_9) (= v_pos_9 0)) InVars {i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} OutVars{i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} AuxVars[] AssignedVars[]" "[68] L40-->L17: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:22:40,754 INFO L754 eck$LassoCheckResult]: Loop: "[53] L17-->L18: Formula: (< v_i1_1 (* 2 v_N_1)) InVars {i1=v_i1_1, N=v_N_1} OutVars{i1=v_i1_1, N=v_N_1} AuxVars[] AssignedVars[]" "[55] L18-->L19: Formula: (= (+ v_pos_2 1) v_pos_1) InVars {pos=v_pos_2} OutVars{pos=v_pos_1} AuxVars[] AssignedVars[pos]" "[56] L19-->L20: Formula: (= v_i1_2 (+ v_i1_3 1)) InVars {i1=v_i1_3} OutVars{i1=v_i1_2} AuxVars[] AssignedVars[i1]" "[57] L20-->L21: Formula: (= v_pos_4 (+ v_pos_3 1)) InVars {pos=v_pos_4} OutVars{pos=v_pos_3} AuxVars[] AssignedVars[pos]" "[58] L21-->L17: Formula: (= v_i1_4 (+ v_i1_5 1)) InVars {i1=v_i1_5} OutVars{i1=v_i1_4} AuxVars[] AssignedVars[i1]" [2025-04-26 16:22:40,758 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2455, now seen corresponding path program 1 times [2025-04-26 16:22:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,765 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074409073] [2025-04-26 16:22:40,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,816 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,831 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,831 INFO L85 PathProgramCache]: Analyzing trace with hash 79269910, now seen corresponding path program 1 times [2025-04-26 16:22:40,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,832 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726432598] [2025-04-26 16:22:40,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:40,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:40,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,838 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:40,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:40,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,844 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1615729728, now seen corresponding path program 1 times [2025-04-26 16:22:40,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,844 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798655941] [2025-04-26 16:22:40,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:22:40,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:22:40,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,854 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:22:40,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:22:40,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,941 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:40,942 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:40,942 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:40,942 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:40,942 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:40,942 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,942 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:40,942 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:40,942 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:22:40,942 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:40,943 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:40,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,022 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:41,022 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:41,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:22:41,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:41,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:41,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:22:41,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:41,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,172 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:41,176 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 16:22:41,177 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:41,177 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:41,177 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:41,177 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:41,177 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:41,177 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,177 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:41,177 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:41,177 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:22:41,177 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:41,177 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:41,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,219 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:41,221 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:41,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:22:41,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:22:41,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:41,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:41,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:41,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:41,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:41,242 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:41,242 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:41,245 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:41,248 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:41,249 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:22:41,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,251 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:22:41,253 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:41,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:22:41,256 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:41,256 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:41,256 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, N) = -1*i1 + 2*N Supporting invariants [] [2025-04-26 16:22:41,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 16:22:41,264 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:41,285 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:41,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:41,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:41,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:41,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:41,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:41,432 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:22:41,439 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 69 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:41,528 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 69 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 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 160 states and 324 transitions. Complement of second has 7 states. [2025-04-26 16:22:41,529 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 16:22:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2025-04-26 16:22:41,535 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 2 letters. Loop has 5 letters. [2025-04-26 16:22:41,536 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,536 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 7 letters. Loop has 5 letters. [2025-04-26 16:22:41,536 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,536 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 42 transitions. Stem has 2 letters. Loop has 10 letters. [2025-04-26 16:22:41,536 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 324 transitions. [2025-04-26 16:22:41,541 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 40 [2025-04-26 16:22:41,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 97 states and 202 transitions. [2025-04-26 16:22:41,545 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2025-04-26 16:22:41,545 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2025-04-26 16:22:41,545 INFO L74 IsDeterministic]: Start isDeterministic. Operand 97 states and 202 transitions. [2025-04-26 16:22:41,545 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:41,546 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 202 transitions. [2025-04-26 16:22:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 202 transitions. [2025-04-26 16:22:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 84. [2025-04-26 16:22:41,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 84 states have (on average 2.0833333333333335) internal successors, (in total 175), 83 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:41,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 175 transitions. [2025-04-26 16:22:41,563 INFO L240 hiAutomatonCegarLoop]: Abstraction has 84 states and 175 transitions. [2025-04-26 16:22:41,563 INFO L438 stractBuchiCegarLoop]: Abstraction has 84 states and 175 transitions. [2025-04-26 16:22:41,563 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:22:41,563 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 175 transitions. [2025-04-26 16:22:41,566 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 40 [2025-04-26 16:22:41,566 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:41,566 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:41,566 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:22:41,566 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-04-26 16:22:41,567 INFO L752 eck$LassoCheckResult]: Stem: "[46] $Ultimate##0-->L40: Formula: (and (= v_i1_7 v_pos_9) (= v_i2_7 v_pos_9) (= v_pos_9 0)) InVars {i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} OutVars{i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} AuxVars[] AssignedVars[]" "[68] L40-->L17: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[71] L40-1-->L28: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:22:41,567 INFO L754 eck$LassoCheckResult]: Loop: "[60] L28-->L29: Formula: (< v_i2_4 (* 2 v_N_4)) InVars {i2=v_i2_4, N=v_N_4} OutVars{i2=v_i2_4, N=v_N_4} AuxVars[] AssignedVars[]" "[62] L29-->L30: Formula: (= (+ 2 v_pos_6) v_pos_5) InVars {pos=v_pos_6} OutVars{pos=v_pos_5} AuxVars[] AssignedVars[pos]" "[63] L30-->L31: Formula: (= (+ v_i2_6 1) v_i2_5) InVars {i2=v_i2_6} OutVars{i2=v_i2_5} AuxVars[] AssignedVars[i2]" "[64] L31-->L32: Formula: (= v_pos_8 (+ 2 v_pos_7)) InVars {pos=v_pos_8} OutVars{pos=v_pos_7} AuxVars[] AssignedVars[pos]" "[65] L32-->L28: Formula: (= v_i2_1 (+ v_i2_2 1)) InVars {i2=v_i2_2} OutVars{i2=v_i2_1} AuxVars[] AssignedVars[i2]" [2025-04-26 16:22:41,567 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:41,567 INFO L85 PathProgramCache]: Analyzing trace with hash 76176, now seen corresponding path program 1 times [2025-04-26 16:22:41,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:41,567 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53571955] [2025-04-26 16:22:41,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:41,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:41,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:41,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:41,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:41,575 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:41,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:41,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:41,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:41,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:41,581 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:41,581 INFO L85 PathProgramCache]: Analyzing trace with hash 85950045, now seen corresponding path program 1 times [2025-04-26 16:22:41,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:41,581 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268258583] [2025-04-26 16:22:41,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:41,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:41,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:41,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:41,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:41,585 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:41,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:41,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:41,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:41,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:41,589 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:41,589 INFO L85 PathProgramCache]: Analyzing trace with hash -931858898, now seen corresponding path program 1 times [2025-04-26 16:22:41,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:41,590 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156372891] [2025-04-26 16:22:41,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:41,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:41,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:22:41,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:22:41,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:41,599 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:41,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:22:41,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:22:41,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:41,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:41,630 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:41,631 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:41,631 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:41,631 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:41,631 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:41,631 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,631 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:41,631 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:41,631 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:22:41,631 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:41,631 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:41,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,662 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:41,662 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:41,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,667 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:22:41,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:41,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,680 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:41,680 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:41,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:41,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,689 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:22:41,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:41,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:22:41,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,712 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:22:41,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:41,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,781 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:41,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:22:41,786 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:41,786 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:41,786 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:41,786 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:41,786 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:41,786 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,787 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:41,787 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:41,787 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:22:41,787 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:41,787 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:41,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,821 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:41,821 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:41,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,823 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:22:41,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:22:41,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:41,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:41,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:41,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:41,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:41,837 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:41,837 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:41,838 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:41,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:22:41,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,845 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:22:41,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:22:41,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:41,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:41,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:41,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:41,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:41,857 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:41,857 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:41,859 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:41,861 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:41,861 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:22:41,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,863 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:22:41,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:22:41,865 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:41,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:22:41,868 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:41,868 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:41,868 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, N) = -1*i2 + 2*N Supporting invariants [] [2025-04-26 16:22:41,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:22:41,874 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:41,885 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:41,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:41,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:41,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:41,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:41,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:22:41,938 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:22:41,938 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 84 states and 175 transitions. cyclomatic complexity: 101 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:41,974 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 84 states and 175 transitions. cyclomatic complexity: 101. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 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 214 states and 472 transitions. Complement of second has 6 states. [2025-04-26 16:22:41,977 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 16:22:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2025-04-26 16:22:41,978 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 3 letters. Loop has 5 letters. [2025-04-26 16:22:41,978 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,978 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 8 letters. Loop has 5 letters. [2025-04-26 16:22:41,978 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,978 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 3 letters. Loop has 10 letters. [2025-04-26 16:22:41,978 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 472 transitions. [2025-04-26 16:22:41,984 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:22:41,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 0 states and 0 transitions. [2025-04-26 16:22:41,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:22:41,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:22:41,984 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:22:41,984 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:41,984 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:41,985 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:41,985 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:41,985 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:22:41,985 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:22:41,985 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:22:41,985 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:22:41,989 INFO L201 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:22:41 BoogieIcfgContainer [2025-04-26 16:22:41,990 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:22:41,990 INFO L158 Benchmark]: Toolchain (without parser) took 1667.99ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 85.0MB in the beginning and 69.0MB in the end (delta: 16.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,990 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 155.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.83ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 83.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,991 INFO L158 Benchmark]: Boogie Preprocessor took 21.05ms. Allocated memory is still 155.2MB. Free memory was 83.1MB in the beginning and 82.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,991 INFO L158 Benchmark]: RCFGBuilder took 174.89ms. Allocated memory is still 155.2MB. Free memory was 82.0MB in the beginning and 73.1MB in the end (delta: 8.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:22:41,991 INFO L158 Benchmark]: BuchiAutomizer took 1433.28ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 72.9MB in the beginning and 69.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,992 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 0.18ms. Allocated memory is still 155.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.83ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 83.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 21.05ms. Allocated memory is still 155.2MB. Free memory was 83.1MB in the beginning and 82.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 174.89ms. Allocated memory is still 155.2MB. Free memory was 82.0MB in the beginning and 73.1MB in the end (delta: 8.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 1433.28ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 72.9MB in the beginning and 69.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 36 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp82 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * N + -1 * i1 and consists of 5 locations. One deterministic module has affine ranking function -1 * i2 + 2 * N 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 16:22:42,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...