/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 --buchiautomizer.automaton.type.for.concurrent.programs PARTIAL_ORDER_BA -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/3_thr/interleaved3-buggy.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:49:00,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:49:00,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:49:00,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:49:00,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:49:00,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:49:00,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:49:00,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:49:00,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:49:00,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:49:00,166 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:49:00,167 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:49:00,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:49:00,167 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:49:00,168 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:49:00,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:49:00,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:49:00,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:49:00,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:49:00,168 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:49:00,168 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> PARTIAL_ORDER_BA [2025-02-17 22:49:00,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:49:00,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:49:00,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:49:00,388 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:49:00,389 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:49:00,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/interleaved3-buggy.c.bpl [2025-02-17 22:49:00,390 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/interleaved3-buggy.c.bpl' [2025-02-17 22:49:00,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:49:00,406 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:49:00,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:49:00,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:49:00,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:49:00,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,422 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:49:00,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:49:00,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:49:00,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:49:00,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:49:00,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,430 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:49:00,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:49:00,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:49:00,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:49:00,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/1) ... [2025-02-17 22:49:00,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:00,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:00,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:00,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:49:00,480 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:49:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:49:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:49:00,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:49:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:49:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:49:00,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:49:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:49:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:49:00,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:49:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:49:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:49:00,481 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:49:00,516 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:49:00,518 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:49:00,596 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:49:00,596 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:49:00,614 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:49:00,615 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:49:00,615 INFO L201 PluginConnector]: Adding new model interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:49:00 BoogieIcfgContainer [2025-02-17 22:49:00,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:49:00,616 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:49:00,616 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:49:00,620 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:49:00,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:49:00,621 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:00" (1/2) ... [2025-02-17 22:49:00,623 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67669ea9 and model type interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:49:00, skipping insertion in model container [2025-02-17 22:49:00,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:49:00,623 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:49:00" (2/2) ... [2025-02-17 22:49:00,624 INFO L363 chiAutomizerObserver]: Analyzing ICFG interleaved3-buggy.c.bpl [2025-02-17 22:49:00,684 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-17 22:49:00,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 83 flow [2025-02-17 22:49:00,757 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2025-02-17 22:49:00,760 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-17 22:49:00,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 3/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 48 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2025-02-17 22:49:00,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 31 transitions, 83 flow [2025-02-17 22:49:00,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 25 transitions, 68 flow [2025-02-17 22:49:00,775 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:49:01,002 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:49:01,003 INFO L101 AmpleReduction]: Number of pruned transitions: 241, Number of non-trivial ample sets: 280 [2025-02-17 22:49:01,003 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 148 [2025-02-17 22:49:01,008 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:49:01,009 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:49:01,009 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:49:01,009 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:49:01,009 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:49:01,009 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:49:01,009 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:49:01,009 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:49:01,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 247 states, 246 states have (on average 1.91869918699187) internal successors, (472), 246 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:01,035 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 194 [2025-02-17 22:49:01,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:01,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:01,040 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:49:01,040 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:49:01,040 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:49:01,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 247 states, 246 states have (on average 1.91869918699187) internal successors, (472), 246 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:01,068 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 194 [2025-02-17 22:49:01,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:01,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:01,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:49:01,070 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:49:01,073 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} AuxVars[] AssignedVars[]" "[87] L14-->L29-1: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" [2025-02-17 22:49:01,073 INFO L754 eck$LassoCheckResult]: Loop: "[66] L29-1-->L27: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[68] L27-->L28: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[69] L28-->L29: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[70] L29-->L29-1: Formula: (and (= v_f1_4 0) (< 0 v_f1_5)) InVars {f1=v_f1_5} OutVars{f1=v_f1_4} AuxVars[] AssignedVars[f1]" [2025-02-17 22:49:01,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:01,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2939, now seen corresponding path program 1 times [2025-02-17 22:49:01,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:01,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765548943] [2025-02-17 22:49:01,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:01,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:01,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:01,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:01,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,132 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:01,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:01,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:01,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:01,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:01,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2957284, now seen corresponding path program 1 times [2025-02-17 22:49:01,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:01,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063936092] [2025-02-17 22:49:01,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:01,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:01,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:01,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:01,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,159 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:01,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:01,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:01,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:01,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:01,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1578705314, now seen corresponding path program 1 times [2025-02-17 22:49:01,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:01,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802334876] [2025-02-17 22:49:01,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:01,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:49:01,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:49:01,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:01,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:49:01,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:49:01,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802334876] [2025-02-17 22:49:01,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802334876] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:49:01,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:49:01,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:49:01,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199081513] [2025-02-17 22:49:01,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:49:01,315 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:01,315 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:01,315 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:01,316 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:01,316 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:49:01,316 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,316 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:01,316 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:01,316 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:49:01,317 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:01,317 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:01,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:01,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:01,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:01,428 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:01,429 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:49:01,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:01,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:01,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:49:01,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:01,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:01,449 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:49:01,449 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:49:01,456 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 [2025-02-17 22:49:01,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:01,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:01,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:49:01,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:01,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:01,478 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 [2025-02-17 22:49:01,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:01,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:01,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:49:01,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:49:01,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:01,507 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:49:01,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:49:01,511 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:01,511 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:01,511 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:01,511 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:01,511 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:49:01,511 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,511 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:01,511 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:01,511 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:49:01,511 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:01,511 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:01,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:01,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:01,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:01,568 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:01,570 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:49:01,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:01,573 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:01,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:49:01,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:49:01,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:01,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:01,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:01,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:01,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:01,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:01,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:01,598 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:49:01,604 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 [2025-02-17 22:49:01,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:01,606 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:01,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:49:01,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:49:01,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:01,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:01,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:01,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:01,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:01,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:01,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:01,624 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:49:01,627 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:49:01,628 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:49:01,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:01,630 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:01,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:49:01,634 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:49:01,634 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:49:01,635 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:49:01,635 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f1) = 1*f1 Supporting invariants [] [2025-02-17 22:49:01,641 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 [2025-02-17 22:49:01,643 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:49:01,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:01,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:01,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:01,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:01,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:49:01,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:01,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:01,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:01,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:01,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:49:01,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:49:01,705 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-17 22:49:01,710 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 247 states, 246 states have (on average 1.91869918699187) internal successors, (472), 246 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:01,780 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 247 states, 246 states have (on average 1.91869918699187) internal successors, (472), 246 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 567 states and 1173 transitions. Complement of second has 4 states. [2025-02-17 22:49:01,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:49:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2025-02-17 22:49:01,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:49:01,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:01,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:49:01,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:01,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 2 letters. Loop has 8 letters. [2025-02-17 22:49:01,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:01,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 567 states and 1173 transitions. [2025-02-17 22:49:01,805 INFO L131 ngComponentsAnalysis]: Automaton has 27 accepting balls. 115 [2025-02-17 22:49:01,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 567 states to 381 states and 804 transitions. [2025-02-17 22:49:01,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2025-02-17 22:49:01,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 244 [2025-02-17 22:49:01,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 381 states and 804 transitions. [2025-02-17 22:49:01,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:49:01,819 INFO L218 hiAutomatonCegarLoop]: Abstraction has 381 states and 804 transitions. [2025-02-17 22:49:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states and 804 transitions. [2025-02-17 22:49:01,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 318. [2025-02-17 22:49:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 2.09748427672956) internal successors, (667), 317 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 667 transitions. [2025-02-17 22:49:01,857 INFO L240 hiAutomatonCegarLoop]: Abstraction has 318 states and 667 transitions. [2025-02-17 22:49:01,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:49:01,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:49:01,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:49:01,859 INFO L87 Difference]: Start difference. First operand 318 states and 667 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:01,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:49:01,877 INFO L93 Difference]: Finished difference Result 149 states and 235 transitions. [2025-02-17 22:49:01,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 235 transitions. [2025-02-17 22:49:01,878 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 73 [2025-02-17 22:49:01,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 91 states and 148 transitions. [2025-02-17 22:49:01,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2025-02-17 22:49:01,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2025-02-17 22:49:01,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 148 transitions. [2025-02-17 22:49:01,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:49:01,879 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 148 transitions. [2025-02-17 22:49:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 148 transitions. [2025-02-17 22:49:01,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2025-02-17 22:49:01,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.6263736263736264) internal successors, (148), 90 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 148 transitions. [2025-02-17 22:49:01,887 INFO L240 hiAutomatonCegarLoop]: Abstraction has 91 states and 148 transitions. [2025-02-17 22:49:01,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:49:01,890 INFO L432 stractBuchiCegarLoop]: Abstraction has 91 states and 148 transitions. [2025-02-17 22:49:01,890 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:49:01,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 148 transitions. [2025-02-17 22:49:01,890 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 73 [2025-02-17 22:49:01,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:01,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:01,891 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:49:01,891 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:49:01,891 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} AuxVars[] AssignedVars[]" "[87] L14-->L29-1: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[65] L29-1-->thread1FINAL: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" "[67] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[90] L14-1-->L40: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" [2025-02-17 22:49:01,891 INFO L754 eck$LassoCheckResult]: Loop: "[72] L40-->L42: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[74] L42-->L42-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[75] L42-1-->L48: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[76] L48-->L40: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:49:01,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash 87620381, now seen corresponding path program 1 times [2025-02-17 22:49:01,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:01,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484985629] [2025-02-17 22:49:01,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:01,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:01,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:49:01,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:49:01,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,900 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:01,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:49:01,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:49:01,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:01,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:01,908 INFO L85 PathProgramCache]: Analyzing trace with hash 3141988, now seen corresponding path program 1 times [2025-02-17 22:49:01,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:01,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350411852] [2025-02-17 22:49:01,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:01,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:01,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:01,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:01,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,914 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:01,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:01,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:01,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:01,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:01,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:01,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2080243328, now seen corresponding path program 1 times [2025-02-17 22:49:01,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:01,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115189686] [2025-02-17 22:49:01,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:01,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:01,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:49:01,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:49:01,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:01,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:49:01,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:49:01,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115189686] [2025-02-17 22:49:01,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115189686] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:49:01,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:49:01,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:49:01,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452241853] [2025-02-17 22:49:01,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:49:01,996 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:01,996 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:01,996 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:01,996 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:01,996 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:49:01,996 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:01,996 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:01,996 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:01,996 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:49:01,996 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:01,996 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:01,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:01,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,033 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:02,034 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:49:02,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,035 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:49:02,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:02,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:02,052 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:49:02,052 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:49:02,057 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 [2025-02-17 22:49:02,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,059 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:49:02,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:02,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:02,079 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 [2025-02-17 22:49:02,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,081 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) [2025-02-17 22:49:02,082 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 [2025-02-17 22:49:02,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:49:02,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:02,107 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:49:02,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:49:02,111 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:02,111 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:02,111 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:02,111 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:02,111 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:49:02,111 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,111 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:02,111 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:02,111 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:49:02,111 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:02,112 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:02,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,156 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:02,156 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:49:02,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,158 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) [2025-02-17 22:49:02,160 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 [2025-02-17 22:49:02,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:49:02,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:02,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:02,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:02,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:02,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:02,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:02,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:02,173 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:49:02,179 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 [2025-02-17 22:49:02,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,181 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:49:02,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:49:02,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:02,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:02,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:02,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:02,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:02,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:02,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:02,197 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:49:02,199 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:49:02,199 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:49:02,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:49:02,202 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:49:02,202 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:49:02,203 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:49:02,203 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-02-17 22:49:02,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-17 22:49:02,209 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:49:02,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:02,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:49:02,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:49:02,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:02,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:49:02,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:02,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:02,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:02,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:02,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:49:02,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:49:02,272 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:49:02,273 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 148 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,298 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 148 transitions. cyclomatic complexity: 73. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 184 states and 307 transitions. Complement of second has 5 states. [2025-02-17 22:49:02,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:49:02,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2025-02-17 22:49:02,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-17 22:49:02,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:02,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 4 letters. [2025-02-17 22:49:02,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:02,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 5 letters. Loop has 8 letters. [2025-02-17 22:49:02,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:02,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 307 transitions. [2025-02-17 22:49:02,303 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 30 [2025-02-17 22:49:02,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 110 states and 186 transitions. [2025-02-17 22:49:02,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2025-02-17 22:49:02,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2025-02-17 22:49:02,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 186 transitions. [2025-02-17 22:49:02,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:49:02,306 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 186 transitions. [2025-02-17 22:49:02,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 186 transitions. [2025-02-17 22:49:02,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2025-02-17 22:49:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.7) internal successors, (170), 99 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 170 transitions. [2025-02-17 22:49:02,309 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 170 transitions. [2025-02-17 22:49:02,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:49:02,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:49:02,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:49:02,309 INFO L87 Difference]: Start difference. First operand 100 states and 170 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:49:02,323 INFO L93 Difference]: Finished difference Result 47 states and 68 transitions. [2025-02-17 22:49:02,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 68 transitions. [2025-02-17 22:49:02,324 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-02-17 22:49:02,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 39 states and 56 transitions. [2025-02-17 22:49:02,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2025-02-17 22:49:02,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2025-02-17 22:49:02,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 56 transitions. [2025-02-17 22:49:02,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:49:02,324 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 56 transitions. [2025-02-17 22:49:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 56 transitions. [2025-02-17 22:49:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-02-17 22:49:02,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.435897435897436) internal successors, (56), 38 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 56 transitions. [2025-02-17 22:49:02,326 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 56 transitions. [2025-02-17 22:49:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:49:02,329 INFO L432 stractBuchiCegarLoop]: Abstraction has 39 states and 56 transitions. [2025-02-17 22:49:02,329 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:49:02,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 56 transitions. [2025-02-17 22:49:02,329 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-02-17 22:49:02,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:02,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:02,329 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:49:02,329 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:49:02,330 INFO L752 eck$LassoCheckResult]: Stem: "[61] $Ultimate##0-->L14: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f1_3 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x2_5 0)) InVars {x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} OutVars{x1=v_x1_5, f2=v_f2_4, f3=v_f3_4, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5} AuxVars[] AssignedVars[]" "[87] L14-->L29-1: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[66] L29-1-->L27: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[68] L27-->L28: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[90] L14-1-->L40: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[84] L15-->L55: Formula: (and (= 3 v_thread3Thread1of1ForFork0_thidvar2_2) (= 3 v_thread3Thread1of1ForFork0_thidvar0_2) (= 3 v_thread3Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_2, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_2, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_thidvar2, thread3Thread1of1ForFork0_thidvar1, thread3Thread1of1ForFork0_thidvar0]" "[72] L40-->L42: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" [2025-02-17 22:49:02,330 INFO L754 eck$LassoCheckResult]: Loop: "[78] L55-->L57: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[80] L57-->L57-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[81] L57-1-->L55: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:49:02,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1695203791, now seen corresponding path program 1 times [2025-02-17 22:49:02,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:02,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503219413] [2025-02-17 22:49:02,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:02,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:02,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:49:02,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:49:02,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:02,341 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:02,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:49:02,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:49:02,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:02,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:02,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash 107310, now seen corresponding path program 1 times [2025-02-17 22:49:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:02,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960711572] [2025-02-17 22:49:02,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:02,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:02,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:02,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:02,353 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:02,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:02,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:02,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:02,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:02,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1590593794, now seen corresponding path program 1 times [2025-02-17 22:49:02,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:02,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985808223] [2025-02-17 22:49:02,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:02,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:02,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-17 22:49:02,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-17 22:49:02,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:49:02,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:49:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985808223] [2025-02-17 22:49:02,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985808223] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:49:02,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:49:02,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:49:02,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138797077] [2025-02-17 22:49:02,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:49:02,429 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:02,429 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:02,429 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:02,429 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:02,429 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:49:02,429 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,429 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:02,429 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:02,430 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:49:02,430 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:02,430 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:02,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,478 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:02,478 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:49:02,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,484 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:49:02,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:02,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:02,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:49:02,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,513 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:49:02,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:49:02,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:02,537 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:49:02,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-17 22:49:02,541 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:02,541 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:02,541 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:02,541 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:02,541 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:49:02,541 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,541 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:02,541 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:02,541 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved3-buggy.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:49:02,541 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:02,541 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:02,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:02,571 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:02,571 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:49:02,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,574 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:49:02,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:49:02,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:02,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:02,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:02,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:02,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:02,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:02,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:02,587 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:49:02,589 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-02-17 22:49:02,590 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:49:02,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:02,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:02,592 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:49:02,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:49:02,600 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:49:02,600 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:49:02,600 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:49:02,600 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-02-17 22:49:02,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:49:02,606 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:49:02,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-17 22:49:02,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-17 22:49:02,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:02,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:49:02,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:49:02,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:02,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:49:02,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:02,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:02,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:02,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:02,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:02,642 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:49:02,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:49:02,657 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:49:02,657 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 56 transitions. cyclomatic complexity: 24 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,671 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 56 transitions. cyclomatic complexity: 24. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 64 transitions. Complement of second has 4 states. [2025-02-17 22:49:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:49:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2025-02-17 22:49:02,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:49:02,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:02,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 10 letters. Loop has 3 letters. [2025-02-17 22:49:02,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:02,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 6 letters. [2025-02-17 22:49:02,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:02,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2025-02-17 22:49:02,673 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-02-17 22:49:02,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 35 states and 48 transitions. [2025-02-17 22:49:02,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2025-02-17 22:49:02,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2025-02-17 22:49:02,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 48 transitions. [2025-02-17 22:49:02,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:49:02,674 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 48 transitions. [2025-02-17 22:49:02,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 48 transitions. [2025-02-17 22:49:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-02-17 22:49:02,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2025-02-17 22:49:02,675 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 48 transitions. [2025-02-17 22:49:02,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:49:02,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:49:02,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:49:02,677 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:02,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:49:02,685 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2025-02-17 22:49:02,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2025-02-17 22:49:02,686 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:49:02,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2025-02-17 22:49:02,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:49:02,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:49:02,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:49:02,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:49:02,686 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:49:02,686 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:49:02,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:49:02,686 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:49:02,686 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:49:02,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:49:02,687 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:49:02,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:49:02,694 INFO L201 PluginConnector]: Adding new model interleaved3-buggy.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:49:02 BoogieIcfgContainer [2025-02-17 22:49:02,694 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:49:02,694 INFO L158 Benchmark]: Toolchain (without parser) took 2288.88ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 85.2MB in the beginning and 95.0MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:49:02,695 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:49:02,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.32ms. Allocated memory is still 159.4MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-02-17 22:49:02,695 INFO L158 Benchmark]: Boogie Preprocessor took 10.27ms. Allocated memory is still 159.4MB. Free memory was 83.9MB in the beginning and 83.2MB in the end (delta: 734.1kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:49:02,695 INFO L158 Benchmark]: RCFGBuilder took 179.75ms. Allocated memory is still 159.4MB. Free memory was 83.2MB in the beginning and 73.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:49:02,695 INFO L158 Benchmark]: BuchiAutomizer took 2078.17ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 73.6MB in the beginning and 95.0MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:49:02,699 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 159.4MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.32ms. Allocated memory is still 159.4MB. Free memory was 85.2MB in the beginning and 83.9MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.27ms. Allocated memory is still 159.4MB. Free memory was 83.9MB in the beginning and 83.2MB in the end (delta: 734.1kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 179.75ms. Allocated memory is still 159.4MB. Free memory was 83.2MB in the beginning and 73.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2078.17ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 73.6MB in the beginning and 95.0MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function f1 and consists of 3 locations. One deterministic module has affine ranking function f2 and consists of 3 locations. One deterministic module has affine ranking function f3 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 73 StatesRemovedByMinimization, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 79 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.2s InitialAbstraction: Time to compute Ample Reduction [ms]: 284, Trivial Ample Sets caused by loops: 148, Number of non-trivial ample sets: 280, Number of pruned transitions: 241, Number of transitions in reduction automaton: 472, Number of states in reduction automaton: 247, Underlying: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:49:02,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-17 22:49:02,913 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...