/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-atomic.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:22:39,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:22:39,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:22:39,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:22:39,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:22:39,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:22:39,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:22:39,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:22:39,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:22:39,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:22:39,496 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:22:39,496 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:22:39,496 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:22:39,496 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:22:39,496 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:22:39,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:22:39,497 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:22:39,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:22:39,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:22:39,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:22:39,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:22:39,498 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:22:39,498 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:22:39,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:22:39,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:22:39,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:22:39,723 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:22:39,725 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:22:39,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl [2025-04-26 16:22:39,726 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl' [2025-04-26 16:22:39,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:22:39,746 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:22:39,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:39,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:22:39,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:22:39,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,781 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:22:39,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:22:39,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:22:39,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:22:39,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:22:39,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,789 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:22:39,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:22:39,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:22:39,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:22:39,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/1) ... [2025-04-26 16:22:39,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:39,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:39,828 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 16:22:39,834 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 16:22:39,852 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:22:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:22:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:22:39,853 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:22:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:22:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:22:39,853 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:22:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:22:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:22:39,854 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 16:22:39,888 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:22:39,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:22:39,977 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:22:39,978 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:22:40,015 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:22:40,015 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:22:40,015 INFO L201 PluginConnector]: Adding new model misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:40 BoogieIcfgContainer [2025-04-26 16:22:40,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:22:40,016 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:22:40,016 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:22:40,022 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:22:40,023 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:40,023 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:22:39" (1/2) ... [2025-04-26 16:22:40,025 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66bf582d and model type misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:22:40, skipping insertion in model container [2025-04-26 16:22:40,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:22:40,026 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:22:40" (2/2) ... [2025-04-26 16:22:40,027 INFO L376 chiAutomizerObserver]: Analyzing ICFG misc-2-unrolled-atomic.wvr.bpl [2025-04-26 16:22:40,065 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:22:40,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 21 transitions, 56 flow [2025-04-26 16:22:40,112 INFO L116 PetriNetUnfolderBase]: 2/17 cut-off events. [2025-04-26 16:22:40,113 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:22:40,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 2/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2025-04-26 16:22:40,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 21 transitions, 56 flow [2025-04-26 16:22:40,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 17 transitions, 46 flow [2025-04-26 16:22:40,119 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 22 places, 17 transitions, 46 flow [2025-04-26 16:22:40,127 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:22:40,127 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:22:40,127 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:22:40,128 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:22:40,128 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:22:40,128 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:22:40,128 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:22:40,128 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:22:40,130 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:22:40,152 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-04-26 16:22:40,152 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:40,152 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:40,156 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:40,156 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:40,156 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:22:40,156 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 30 states, but on-demand construction may add more states [2025-04-26 16:22:40,157 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2025-04-26 16:22:40,157 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:40,157 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:40,158 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:22:40,158 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:40,162 INFO L752 eck$LassoCheckResult]: Stem: "[46] $Ultimate##0-->L44: Formula: (and (= v_i1_7 v_pos_9) (= v_i2_7 v_pos_9) (= v_pos_9 0)) InVars {i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} OutVars{i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} AuxVars[] AssignedVars[]" "[62] L44-->L18-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:22:40,162 INFO L754 eck$LassoCheckResult]: Loop: "[53] L18-1-->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-->L18-1: Formula: (and (= v_i1_18 (+ 2 v_i1_19)) (= v_pos_19 v_pos_21)) InVars {i1=v_i1_19, pos=v_pos_21} OutVars{i1=v_i1_18, pos=v_pos_19} AuxVars[] AssignedVars[i1, pos]" [2025-04-26 16:22:40,168 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2449, now seen corresponding path program 1 times [2025-04-26 16:22:40,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,175 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566725604] [2025-04-26 16:22:40,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,222 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,237 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2659, now seen corresponding path program 1 times [2025-04-26 16:22:40,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,237 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304531917] [2025-04-26 16:22:40,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,242 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,247 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2355187, now seen corresponding path program 1 times [2025-04-26 16:22:40,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,247 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3293007] [2025-04-26 16:22:40,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:40,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:40,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,253 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:22:40,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:22:40,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,305 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:40,306 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:40,306 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:40,306 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:40,306 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:40,306 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,306 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:40,306 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:40,306 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled-atomic.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:22:40,306 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:40,307 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:40,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,356 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:40,357 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:40,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,360 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 16:22:40,362 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 16:22:40,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:40,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:40,378 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:22:40,378 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:22:40,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-04-26 16:22:40,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,387 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 16:22:40,388 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 16:22:40,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:40,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:40,408 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 16:22:40,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,410 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 16:22:40,412 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 16:22:40,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:40,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:40,490 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:40,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:40,495 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:40,495 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:40,495 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:40,495 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:40,495 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:22:40,495 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,495 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:40,495 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:40,495 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled-atomic.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:22:40,495 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:40,495 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:40,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:40,532 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:40,535 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:40,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,538 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 16:22:40,539 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 16:22:40,541 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 16:22:40,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:40,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:40,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:40,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:40,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:40,559 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:40,559 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:40,563 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:22:40,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:22:40,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,575 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 16:22:40,577 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 16:22:40,579 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 16:22:40,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:40,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:40,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:40,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:40,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:40,593 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:40,593 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:40,596 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:40,599 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:40,599 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:22:40,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:40,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:40,603 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 16:22:40,605 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 16:22:40,605 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:40,609 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 16:22:40,609 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:40,609 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:40,610 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, i1) = 2*N - 1*i1 Supporting invariants [] [2025-04-26 16:22:40,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:22:40,619 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:40,650 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:40,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:40,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:40,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:40,679 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:40,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:40,704 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 16:22:40,788 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 16:22:40,791 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 30 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:40,933 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 30 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 74 states and 155 transitions. Complement of second has 7 states. [2025-04-26 16:22:40,935 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 16:22:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2025-04-26 16:22:40,947 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:22:40,948 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:40,948 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:22:40,948 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:40,948 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:22:40,949 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:40,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 155 transitions. [2025-04-26 16:22:40,952 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2025-04-26 16:22:40,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 30 states and 66 transitions. [2025-04-26 16:22:40,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2025-04-26 16:22:40,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2025-04-26 16:22:40,956 INFO L74 IsDeterministic]: Start isDeterministic. Operand 30 states and 66 transitions. [2025-04-26 16:22:40,956 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:22:40,956 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 66 transitions. [2025-04-26 16:22:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 66 transitions. [2025-04-26 16:22:40,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2025-04-26 16:22:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 2.25) internal successors, (in total 54), 23 states have internal predecessors, (54), 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 16:22:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 54 transitions. [2025-04-26 16:22:40,973 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 54 transitions. [2025-04-26 16:22:40,973 INFO L438 stractBuchiCegarLoop]: Abstraction has 24 states and 54 transitions. [2025-04-26 16:22:40,973 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:22:40,973 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 54 transitions. [2025-04-26 16:22:40,974 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2025-04-26 16:22:40,974 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:22:40,974 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:22:40,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:22:40,974 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:22:40,975 INFO L752 eck$LassoCheckResult]: Stem: "[46] $Ultimate##0-->L44: Formula: (and (= v_i1_7 v_pos_9) (= v_i2_7 v_pos_9) (= v_pos_9 0)) InVars {i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} OutVars{i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} AuxVars[] AssignedVars[]" "[62] L44-->L18-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[65] L44-1-->L31-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:22:40,975 INFO L754 eck$LassoCheckResult]: Loop: "[57] L31-1-->L31: 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[]" "[59] L31-->L31-1: Formula: (and (= v_i2_16 (+ 2 v_i2_18)) (= v_pos_35 v_pos_33)) InVars {i2=v_i2_18, pos=v_pos_35} OutVars{i2=v_i2_16, pos=v_pos_33} AuxVars[] AssignedVars[i2, pos]" [2025-04-26 16:22:40,976 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,976 INFO L85 PathProgramCache]: Analyzing trace with hash 75984, now seen corresponding path program 1 times [2025-04-26 16:22:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,976 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130845162] [2025-04-26 16:22:40,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:40,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:40,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,980 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:40,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:40,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,983 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2787, now seen corresponding path program 1 times [2025-04-26 16:22:40,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,984 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059669653] [2025-04-26 16:22:40,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,988 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:40,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:40,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:40,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:40,992 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:40,992 INFO L85 PathProgramCache]: Analyzing trace with hash 73022450, now seen corresponding path program 1 times [2025-04-26 16:22:40,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:22:40,992 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617344638] [2025-04-26 16:22:40,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:22:40,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:22:40,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:40,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:40,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:40,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:40,998 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:22:41,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:22:41,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:22:41,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:22:41,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:22:41,030 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:22:41,030 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:22:41,030 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:22:41,030 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:22:41,030 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:22:41,030 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,030 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:22:41,030 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:22:41,030 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled-atomic.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:22:41,030 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:22:41,030 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:22:41,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,069 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:41,069 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:22:41,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,073 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 16:22:41,075 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 16:22:41,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:22:41,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,094 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 16:22:41,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,096 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 16:22:41,097 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 16:22:41,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:22:41,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:22:41,173 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:22:41,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] 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-atomic.wvr.bpl_petrified1_Iteration2_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 16:22:41,185 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:22:41,207 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:22:41,207 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:22:41,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,209 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 16:22:41,210 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 16:22:41,211 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 16:22:41,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:22:41,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:22:41,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:22:41,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:22:41,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:22:41,225 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:22:41,225 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:22:41,228 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:22:41,231 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:22:41,231 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:22:41,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:22:41,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:22:41,233 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 16:22:41,235 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 16:22:41,236 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:22:41,239 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 16:22:41,239 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:22:41,239 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:22:41,239 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, i2) = 2*N - 1*i2 Supporting invariants [] [2025-04-26 16:22:41,246 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 16:22:41,247 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:22:41,263 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:22:41,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:22:41,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:22:41,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:22:41,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:22:41,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:22:41,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:22:41,281 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:22:41,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:22:41,300 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 16:22:41,301 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 16:22:41,301 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 54 transitions. cyclomatic complexity: 37 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:41,348 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 54 transitions. cyclomatic complexity: 37. 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 61 states and 132 transitions. Complement of second has 6 states. [2025-04-26 16:22:41,349 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 16:22:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:22:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2025-04-26 16:22:41,350 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:22:41,350 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,350 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:22:41,351 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,351 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:22:41,351 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:22:41,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 132 transitions. [2025-04-26 16:22:41,352 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:22:41,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2025-04-26 16:22:41,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:22:41,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:22:41,353 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:22:41,353 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:22:41,353 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:41,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:41,353 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:22:41,353 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:22:41,353 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:22:41,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:22:41,353 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:22:41,358 INFO L201 PluginConnector]: Adding new model misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:22:41 BoogieIcfgContainer [2025-04-26 16:22:41,358 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:22:41,358 INFO L158 Benchmark]: Toolchain (without parser) took 1611.83ms. Allocated memory was 163.6MB in the beginning and 155.2MB in the end (delta: -8.4MB). Free memory was 92.3MB in the beginning and 85.7MB in the end (delta: 6.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,358 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.41ms. Allocated memory is still 163.6MB. Free memory was 92.3MB in the beginning and 89.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,359 INFO L158 Benchmark]: Boogie Preprocessor took 19.26ms. Allocated memory is still 163.6MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 909.2kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,359 INFO L158 Benchmark]: RCFGBuilder took 210.11ms. Allocated memory is still 163.6MB. Free memory was 88.5MB in the beginning and 78.4MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:22:41,359 INFO L158 Benchmark]: BuchiAutomizer took 1341.55ms. Allocated memory was 163.6MB in the beginning and 155.2MB in the end (delta: -8.4MB). Free memory was 78.4MB in the beginning and 85.7MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:22:41,360 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 0.19ms. Allocated memory is still 163.6MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.41ms. Allocated memory is still 163.6MB. Free memory was 92.3MB in the beginning and 89.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 19.26ms. Allocated memory is still 163.6MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 909.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 210.11ms. Allocated memory is still 163.6MB. Free memory was 88.5MB in the beginning and 78.4MB in the end (delta: 10.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1341.55ms. Allocated memory was 163.6MB in the beginning and 155.2MB in the end (delta: -8.4MB). Free memory was 78.4MB in the beginning and 85.7MB in the end (delta: -7.3MB). 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 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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, 6 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, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 59 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: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 2 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 16:22:41,370 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...