/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/seq_loops_part_indep_2.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:24,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:24,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:24,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:24,819 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:24,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:24,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:24,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:24,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:24,841 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:24,841 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:24,841 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:24,841 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:24,841 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:24,841 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:24,841 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:24,841 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:24,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:24,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:24,843 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:24,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:24,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:24,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:24,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:24,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:24,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:24,845 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:24,845 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:25,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:25,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:25,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:25,065 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:25,066 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:25,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/seq_loops_part_indep_2.c.bpl [2025-04-26 16:24:25,067 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/seq_loops_part_indep_2.c.bpl' [2025-04-26 16:24:25,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:25,080 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:25,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:25,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:25,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:25,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,108 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:25,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:25,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:25,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:25,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:25,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,116 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:25,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:25,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:25,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:25,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/1) ... [2025-04-26 16:24:25,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:25,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:24:25,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:25,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:25,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:25,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:25,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:25,181 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:24:25,219 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:25,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:25,271 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:25,271 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:25,278 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:25,278 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:25,278 INFO L201 PluginConnector]: Adding new model seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:25 BoogieIcfgContainer [2025-04-26 16:24:25,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:25,279 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:25,279 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:25,283 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:25,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:25,283 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:25" (1/2) ... [2025-04-26 16:24:25,284 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32bedba3 and model type seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:25, skipping insertion in model container [2025-04-26 16:24:25,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:25,284 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:25" (2/2) ... [2025-04-26 16:24:25,285 INFO L376 chiAutomizerObserver]: Analyzing ICFG seq_loops_part_indep_2.c.bpl [2025-04-26 16:24:25,329 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:24:25,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 25 transitions, 64 flow [2025-04-26 16:24:25,387 INFO L116 PetriNetUnfolderBase]: 4/21 cut-off events. [2025-04-26 16:24:25,390 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:24:25,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 4/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 45 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2025-04-26 16:24:25,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 25 transitions, 64 flow [2025-04-26 16:24:25,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 21 transitions, 54 flow [2025-04-26 16:24:25,402 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 24 places, 21 transitions, 54 flow [2025-04-26 16:24:25,411 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:25,411 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:25,412 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:25,412 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:25,412 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:25,412 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:25,412 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:25,412 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:25,414 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:25,450 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 55 [2025-04-26 16:24:25,450 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:25,450 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:25,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:24:25,456 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:25,456 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:25,456 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 65 states, but on-demand construction may add more states [2025-04-26 16:24:25,459 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 55 [2025-04-26 16:24:25,459 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:25,459 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:25,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:24:25,459 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:25,464 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:24:25,464 INFO L754 eck$LassoCheckResult]: Loop: "[57] L21-->L23: 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[]" "[60] L23-->L24: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[63] L24-->L21: Formula: (= v_x2_1 (+ v_x2_2 1)) InVars {x2=v_x2_2} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[x2]" [2025-04-26 16:24:25,468 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2025-04-26 16:24:25,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:25,475 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356306767] [2025-04-26 16:24:25,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:25,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:25,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:25,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:25,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:25,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:25,525 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:25,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:25,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:25,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:25,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:25,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:25,546 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:25,546 INFO L85 PathProgramCache]: Analyzing trace with hash 86491, now seen corresponding path program 1 times [2025-04-26 16:24:25,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:25,546 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762562209] [2025-04-26 16:24:25,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:25,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:25,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:25,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:25,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:25,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:25,560 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:25,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:25,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:25,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:25,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:25,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:25,573 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:25,573 INFO L85 PathProgramCache]: Analyzing trace with hash 3184755, now seen corresponding path program 1 times [2025-04-26 16:24:25,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:25,573 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892248742] [2025-04-26 16:24:25,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:25,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:25,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:25,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:25,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:25,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:25,583 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:25,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:25,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:25,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:25,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:25,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:25,671 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:25,671 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:25,672 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:25,672 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:25,672 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:25,672 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,672 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:25,673 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:25,673 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:25,673 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:25,673 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:25,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:25,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:25,748 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:25,749 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:25,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:25,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:24:25,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:25,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:25,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-04-26 16:24:25,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:25,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:24:25,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:25,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:25,815 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:25,815 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x2=0} Honda state: {x2=0} Generalized eigenvectors: [{x2=1}, {x2=-6}, {x2=6}] Lambdas: [1, 2, 1] Nus: [0, 1] [2025-04-26 16:24:25,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:25,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,823 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:25,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:24:25,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:25,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:25,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:25,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:25,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:24:25,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:25,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:25,919 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:25,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:24:25,923 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:25,923 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:25,923 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:25,923 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:25,923 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:25,923 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,923 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:25,924 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:25,924 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:25,924 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:25,924 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:25,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:25,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:25,957 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:25,959 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:25,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:25,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:24:25,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:25,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:25,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:25,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:25,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:25,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:25,979 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:25,979 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:25,983 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:25,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:25,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:25,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:25,991 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:25,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:24:25,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:26,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:26,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:26,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:26,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:26,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:26,004 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:26,004 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:26,008 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:26,015 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:26,016 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:26,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:24:26,021 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:26,024 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:24:26,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:26,026 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:26,026 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:26,026 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-04-26 16:24:26,034 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 [2025-04-26 16:24:26,037 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:26,059 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:26,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:26,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:26,074 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:26,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:26,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:26,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:26,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:26,084 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:26,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:26,207 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:24:26,209 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 65 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.0) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:26,338 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 65 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 171 states and 398 transitions. Complement of second has 6 states. [2025-04-26 16:24:26,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:26,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2025-04-26 16:24:26,347 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 1 letters. Loop has 3 letters. [2025-04-26 16:24:26,347 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,347 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 16:24:26,347 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,348 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 1 letters. Loop has 6 letters. [2025-04-26 16:24:26,348 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,348 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 398 transitions. [2025-04-26 16:24:26,353 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 48 [2025-04-26 16:24:26,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 118 states and 278 transitions. [2025-04-26 16:24:26,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2025-04-26 16:24:26,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2025-04-26 16:24:26,358 INFO L74 IsDeterministic]: Start isDeterministic. Operand 118 states and 278 transitions. [2025-04-26 16:24:26,358 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:26,358 INFO L218 hiAutomatonCegarLoop]: Abstraction has 118 states and 278 transitions. [2025-04-26 16:24:26,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 278 transitions. [2025-04-26 16:24:26,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2025-04-26 16:24:26,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 2.36) internal successors, (in total 236), 99 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 236 transitions. [2025-04-26 16:24:26,378 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 236 transitions. [2025-04-26 16:24:26,378 INFO L438 stractBuchiCegarLoop]: Abstraction has 100 states and 236 transitions. [2025-04-26 16:24:26,378 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:26,378 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 236 transitions. [2025-04-26 16:24:26,380 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 48 [2025-04-26 16:24:26,380 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:26,380 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:26,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:26,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:26,380 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[56] L21-->L26-1: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" [2025-04-26 16:24:26,381 INFO L754 eck$LassoCheckResult]: Loop: "[59] L26-1-->L28: Formula: (< v_x3_1 v_z_3) InVars {x3=v_x3_1, z=v_z_3} OutVars{x3=v_x3_1, z=v_z_3} AuxVars[] AssignedVars[]" "[62] L28-->L26-1: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-04-26 16:24:26,381 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,381 INFO L85 PathProgramCache]: Analyzing trace with hash 3311, now seen corresponding path program 1 times [2025-04-26 16:24:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,381 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572516250] [2025-04-26 16:24:26,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,385 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,387 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2852, now seen corresponding path program 1 times [2025-04-26 16:24:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,388 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357320947] [2025-04-26 16:24:26,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,391 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,396 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,396 INFO L85 PathProgramCache]: Analyzing trace with hash 3183762, now seen corresponding path program 1 times [2025-04-26 16:24:26,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,396 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943181091] [2025-04-26 16:24:26,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:26,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:26,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,400 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:26,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:26,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,418 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:26,418 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:26,418 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:26,419 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:26,419 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:26,419 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,419 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:26,419 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:26,419 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:26,419 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:26,419 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:26,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,440 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:26,440 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:26,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,442 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:24:26,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:26,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:24:26,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,463 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:24:26,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:26,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,528 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:26,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:24:26,532 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:26,532 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:26,532 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:26,532 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:26,532 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:26,532 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,533 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:26,533 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:26,533 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:26,533 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:26,533 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:26,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,553 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:26,553 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:26,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,555 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:24:26,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:26,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:26,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:26,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:26,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:26,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:26,568 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:26,568 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:26,570 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:26,573 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:26,573 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:26,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,575 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:24:26,578 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:26,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:24:26,582 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:26,582 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:26,582 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z) = -1*x3 + 1*z Supporting invariants [] [2025-04-26 16:24:26,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:24:26,589 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:26,602 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:26,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:26,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:26,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:26,619 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:26,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:26,632 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:26,632 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 236 transitions. cyclomatic complexity: 160 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:26,684 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 236 transitions. cyclomatic complexity: 160. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 166 states and 424 transitions. Complement of second has 6 states. [2025-04-26 16:24:26,685 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:26,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2025-04-26 16:24:26,686 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:24:26,686 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,686 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:24:26,686 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,686 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:24:26,686 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:26,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 424 transitions. [2025-04-26 16:24:26,689 INFO L131 ngComponentsAnalysis]: Automaton has 17 accepting balls. 42 [2025-04-26 16:24:26,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 117 states and 304 transitions. [2025-04-26 16:24:26,694 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2025-04-26 16:24:26,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2025-04-26 16:24:26,694 INFO L74 IsDeterministic]: Start isDeterministic. Operand 117 states and 304 transitions. [2025-04-26 16:24:26,695 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:26,695 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 304 transitions. [2025-04-26 16:24:26,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 304 transitions. [2025-04-26 16:24:26,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2025-04-26 16:24:26,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 2.656862745098039) internal successors, (in total 271), 101 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:26,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 271 transitions. [2025-04-26 16:24:26,705 INFO L240 hiAutomatonCegarLoop]: Abstraction has 102 states and 271 transitions. [2025-04-26 16:24:26,705 INFO L438 stractBuchiCegarLoop]: Abstraction has 102 states and 271 transitions. [2025-04-26 16:24:26,705 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:26,705 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 271 transitions. [2025-04-26 16:24:26,707 INFO L131 ngComponentsAnalysis]: Automaton has 17 accepting balls. 42 [2025-04-26 16:24:26,707 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:26,707 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:26,708 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:26,708 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:26,708 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] L12-->L35: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:24:26,708 INFO L754 eck$LassoCheckResult]: Loop: "[65] L35-->L37: Formula: (< v_x2_3 v_z_5) InVars {x2=v_x2_3, z=v_z_5} OutVars{x2=v_x2_3, z=v_z_5} AuxVars[] AssignedVars[]" "[68] L37-->L38: Formula: (= (+ v_x2_5 1) v_x2_4) InVars {x2=v_x2_5} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[71] L38-->L35: Formula: (= v_x1_5 (+ v_x1_6 1)) InVars {x1=v_x1_6} OutVars{x1=v_x1_5} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:26,708 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash 3332, now seen corresponding path program 1 times [2025-04-26 16:24:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,709 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972310439] [2025-04-26 16:24:26,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,715 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:26,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:26,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,721 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,721 INFO L85 PathProgramCache]: Analyzing trace with hash 94435, now seen corresponding path program 1 times [2025-04-26 16:24:26,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,721 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056153228] [2025-04-26 16:24:26,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:26,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:26,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,728 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:26,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:26,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,731 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:26,731 INFO L85 PathProgramCache]: Analyzing trace with hash 99328256, now seen corresponding path program 1 times [2025-04-26 16:24:26,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:26,731 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226684356] [2025-04-26 16:24:26,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:26,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:26,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:26,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,735 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:26,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:26,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:26,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:26,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:26,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:26,756 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:26,757 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:26,757 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:26,757 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:26,757 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:26,757 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,757 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:26,757 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:26,757 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:24:26,757 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:26,757 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:26,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,793 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:26,793 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:26,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,795 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:24:26,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:26,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:26,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,817 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:24:26,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:26,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,843 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:26,843 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x1=0} Honda state: {x1=0} Generalized eigenvectors: [{x1=7}, {x1=2}, {x1=-8}] Lambdas: [1, 5, 1] Nus: [0, 1] [2025-04-26 16:24:26,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:24:26,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,851 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:24:26,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:26,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:24:26,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,870 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:24:26,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:26,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:26,932 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:26,936 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 [2025-04-26 16:24:26,936 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:26,936 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:26,936 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:26,936 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:26,936 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:26,936 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,936 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:26,937 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:26,937 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:24:26,937 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:26,937 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:26,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,943 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:26,965 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:26,965 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:26,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,969 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 16:24:26,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:26,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:26,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:26,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:26,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:26,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:26,981 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:26,981 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:26,983 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:26,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:26,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:26,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:26,990 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:26,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:24:26,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:27,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:27,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,005 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:27,005 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:27,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:27,009 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:27,009 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:24:27,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,010 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:24:27,013 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:27,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:27,017 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:27,017 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:27,017 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-04-26 16:24:27,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-04-26 16:24:27,023 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:27,034 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,047 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:27,080 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:24:27,081 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 102 states and 271 transitions. cyclomatic complexity: 193 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,126 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 102 states and 271 transitions. cyclomatic complexity: 193. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 315 states and 871 transitions. Complement of second has 6 states. [2025-04-26 16:24:27,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2025-04-26 16:24:27,127 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 3 letters. [2025-04-26 16:24:27,127 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,127 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:24:27,127 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,127 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 6 letters. [2025-04-26 16:24:27,128 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 871 transitions. [2025-04-26 16:24:27,131 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 18 [2025-04-26 16:24:27,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 238 states and 630 transitions. [2025-04-26 16:24:27,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2025-04-26 16:24:27,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2025-04-26 16:24:27,134 INFO L74 IsDeterministic]: Start isDeterministic. Operand 238 states and 630 transitions. [2025-04-26 16:24:27,134 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:27,134 INFO L218 hiAutomatonCegarLoop]: Abstraction has 238 states and 630 transitions. [2025-04-26 16:24:27,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states and 630 transitions. [2025-04-26 16:24:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 205. [2025-04-26 16:24:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 2.653658536585366) internal successors, (in total 544), 204 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 544 transitions. [2025-04-26 16:24:27,152 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205 states and 544 transitions. [2025-04-26 16:24:27,152 INFO L438 stractBuchiCegarLoop]: Abstraction has 205 states and 544 transitions. [2025-04-26 16:24:27,152 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:24:27,152 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 544 transitions. [2025-04-26 16:24:27,155 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 18 [2025-04-26 16:24:27,155 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:27,155 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:27,156 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:27,156 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:27,156 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] L12-->L35: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[64] L35-->L40-1: Formula: (<= v_z_6 v_x2_6) InVars {x2=v_x2_6, z=v_z_6} OutVars{x2=v_x2_6, z=v_z_6} AuxVars[] AssignedVars[]" [2025-04-26 16:24:27,156 INFO L754 eck$LassoCheckResult]: Loop: "[67] L40-1-->L42: Formula: (< v_x4_1 v_z_7) InVars {x4=v_x4_1, z=v_z_7} OutVars{x4=v_x4_1, z=v_z_7} AuxVars[] AssignedVars[]" "[70] L42-->L40-1: Formula: (= (+ v_x4_3 1) v_x4_2) InVars {x4=v_x4_3} OutVars{x4=v_x4_2} AuxVars[] AssignedVars[x4]" [2025-04-26 16:24:27,156 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 103356, now seen corresponding path program 1 times [2025-04-26 16:24:27,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,157 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883245057] [2025-04-26 16:24:27,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,160 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,166 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,166 INFO L85 PathProgramCache]: Analyzing trace with hash 3108, now seen corresponding path program 1 times [2025-04-26 16:24:27,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,166 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333017988] [2025-04-26 16:24:27,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,169 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,171 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,171 INFO L85 PathProgramCache]: Analyzing trace with hash 99327263, now seen corresponding path program 1 times [2025-04-26 16:24:27,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:27,171 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474193169] [2025-04-26 16:24:27,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:27,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:27,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:27,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:27,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,179 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:27,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:27,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:27,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:27,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:27,201 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,201 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,201 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,201 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,201 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:27,201 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,201 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,201 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,202 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration4_Loop [2025-04-26 16:24:27,202 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,202 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,215 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,215 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:27,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,218 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:24:27,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:27,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:27,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,240 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 16:24:27,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:27,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:27,308 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:27,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:27,312 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:27,312 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:27,312 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:27,312 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:27,312 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:27,312 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,312 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:27,312 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:27,312 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration4_Loop [2025-04-26 16:24:27,312 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:27,312 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:27,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:27,329 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:27,329 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:27,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,331 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 16:24:27,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:27,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:27,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:27,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:27,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:27,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:27,344 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:27,344 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:27,346 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:27,348 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:27,348 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:24:27,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:27,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:27,350 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:27,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 16:24:27,352 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:27,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:27,356 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:27,356 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:27,356 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-04-26 16:24:27,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-04-26 16:24:27,362 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:27,372 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:27,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:27,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:27,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:27,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:27,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:27,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:27,383 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:27,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:27,396 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:27,396 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 205 states and 544 transitions. cyclomatic complexity: 371 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,439 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 205 states and 544 transitions. cyclomatic complexity: 371. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 291 states and 755 transitions. Complement of second has 6 states. [2025-04-26 16:24:27,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2025-04-26 16:24:27,440 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:24:27,440 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,440 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:24:27,440 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,440 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:24:27,440 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:27,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 291 states and 755 transitions. [2025-04-26 16:24:27,443 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:27,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 291 states to 0 states and 0 transitions. [2025-04-26 16:24:27,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:27,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:27,443 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:27,443 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:27,443 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:27,443 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:27,443 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:27,443 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:24:27,443 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:27,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:27,444 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:27,448 INFO L201 PluginConnector]: Adding new model seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:27 BoogieIcfgContainer [2025-04-26 16:24:27,448 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:27,449 INFO L158 Benchmark]: Toolchain (without parser) took 2369.22ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 88.4MB in the beginning and 83.2MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,449 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.47ms. Allocated memory is still 159.4MB. Free memory was 89.4MB in the beginning and 89.2MB in the end (delta: 199.3kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.70ms. Allocated memory is still 159.4MB. Free memory was 88.4MB in the beginning and 86.5MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:24:27,450 INFO L158 Benchmark]: Boogie Preprocessor took 17.84ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 85.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,450 INFO L158 Benchmark]: RCFGBuilder took 149.41ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 76.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:24:27,450 INFO L158 Benchmark]: BuchiAutomizer took 2169.63ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 76.4MB in the beginning and 83.2MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:27,451 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 0.47ms. Allocated memory is still 159.4MB. Free memory was 89.4MB in the beginning and 89.2MB in the end (delta: 199.3kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.70ms. Allocated memory is still 159.4MB. Free memory was 88.4MB in the beginning and 86.5MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.84ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 85.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 149.41ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 76.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2169.63ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 76.4MB in the beginning and 83.2MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 66 StatesRemovedByMinimization, 3 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 67 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp85 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:24:27,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...