/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/3_thr/seq_loops_part_indep_3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:50,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:50,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:50,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:50,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:50,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:50,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:50,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:50,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:50,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:50,549 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:50,550 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:50,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:50,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:50,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:50,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:50,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:50,553 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:50,553 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:50,553 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:50,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:50,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:50,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:50,778 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:50,778 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:50,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/seq_loops_part_indep_3.c.bpl [2025-02-17 22:45:50,779 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/seq_loops_part_indep_3.c.bpl' [2025-02-17 22:45:50,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:50,799 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:50,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:50,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:50,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:50,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,818 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:50,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:50,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:50,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:50,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:50,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,827 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:50,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:50,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:50,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:50,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/1) ... [2025-02-17 22:45:50,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:50,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:50,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:50,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:50,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:50,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:50,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:50,878 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:50,879 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:50,916 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:50,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:50,993 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:50,993 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:51,000 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:51,000 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:51,001 INFO L201 PluginConnector]: Adding new model seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:51 BoogieIcfgContainer [2025-02-17 22:45:51,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:51,001 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:51,001 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:51,005 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:51,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:51,005 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:50" (1/2) ... [2025-02-17 22:45:51,006 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a1f59ac and model type seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:51, skipping insertion in model container [2025-02-17 22:45:51,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:51,006 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:51" (2/2) ... [2025-02-17 22:45:51,007 INFO L363 chiAutomizerObserver]: Analyzing ICFG seq_loops_part_indep_3.c.bpl [2025-02-17 22:45:51,054 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-17 22:45:51,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 37 transitions, 95 flow [2025-02-17 22:45:51,098 INFO L124 PetriNetUnfolderBase]: 6/31 cut-off events. [2025-02-17 22:45:51,100 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-17 22:45:51,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 31 events. 6/31 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 77 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2025-02-17 22:45:51,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 37 transitions, 95 flow [2025-02-17 22:45:51,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 80 flow [2025-02-17 22:45:51,118 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:51,118 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:51,118 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:51,118 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:51,118 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:51,118 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:51,118 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:51,118 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:51,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:51,213 INFO L131 ngComponentsAnalysis]: Automaton has 84 accepting balls. 435 [2025-02-17 22:45:51,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:51,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:51,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:51,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:51,216 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:51,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 457 states, but on-demand construction may add more states [2025-02-17 22:45:51,232 INFO L131 ngComponentsAnalysis]: Automaton has 84 accepting balls. 435 [2025-02-17 22:45:51,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:51,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:51,235 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:51,236 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:51,239 INFO L752 eck$LassoCheckResult]: Stem: "[109] $Ultimate##0-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:51,239 INFO L754 eck$LassoCheckResult]: Loop: "[84] L23-->L25: 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[]" "[87] L25-->L26: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[90] L26-->L23: Formula: (= v_x2_1 (+ v_x2_2 1)) InVars {x2=v_x2_2} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:51,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:51,246 INFO L85 PathProgramCache]: Analyzing trace with hash 140, now seen corresponding path program 1 times [2025-02-17 22:45:51,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:51,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901054179] [2025-02-17 22:45:51,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:51,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:51,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:51,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:51,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,304 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:51,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:51,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:51,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:51,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash 113302, now seen corresponding path program 1 times [2025-02-17 22:45:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420841738] [2025-02-17 22:45:51,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:51,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:51,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:51,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,326 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:51,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:51,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:51,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:51,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:51,330 INFO L85 PathProgramCache]: Analyzing trace with hash 4254251, now seen corresponding path program 1 times [2025-02-17 22:45:51,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:51,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535325728] [2025-02-17 22:45:51,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:51,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:51,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:51,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:51,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,334 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:51,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:51,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:51,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:51,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:51,388 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:51,389 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:51,389 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:51,389 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:51,389 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:51,389 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,389 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:51,389 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:51,389 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:51,389 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:51,390 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:51,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,472 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:51,473 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:51,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:51,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:51,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:51,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:51,501 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 [2025-02-17 22:45:51,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:51,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:45:51,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:51,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:51,596 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:51,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:51,601 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:51,601 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:51,601 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:51,601 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:51,601 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:51,601 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,601 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:51,602 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:51,602 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:51,602 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:51,602 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:51,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:51,641 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:51,644 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:51,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:51,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:45:51,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:51,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:51,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:51,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:51,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:51,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:51,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:51,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:51,669 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:51,674 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:51,674 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:51,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:51,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:51,677 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:51,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:45:51,680 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:51,680 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:51,681 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:51,681 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-02-17 22:45:51,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:45:51,690 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:51,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:51,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:51,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:51,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:51,721 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:51,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:51,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:51,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:51,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:51,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:51,733 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:51,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:51,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:51,826 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 [2025-02-17 22:45:51,830 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 457 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:51,993 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 457 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1246 states and 4395 transitions. Complement of second has 6 states. [2025-02-17 22:45:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:51,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-02-17 22:45:52,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 72 transitions. Stem has 1 letters. Loop has 3 letters. [2025-02-17 22:45:52,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:52,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 72 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:52,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:52,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 72 transitions. Stem has 1 letters. Loop has 6 letters. [2025-02-17 22:45:52,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:52,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1246 states and 4395 transitions. [2025-02-17 22:45:52,033 INFO L131 ngComponentsAnalysis]: Automaton has 117 accepting balls. 440 [2025-02-17 22:45:52,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1246 states to 928 states and 3313 transitions. [2025-02-17 22:45:52,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2025-02-17 22:45:52,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 631 [2025-02-17 22:45:52,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 928 states and 3313 transitions. [2025-02-17 22:45:52,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:52,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 928 states and 3313 transitions. [2025-02-17 22:45:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states and 3313 transitions. [2025-02-17 22:45:52,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 779. [2025-02-17 22:45:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 779 states have (on average 3.562259306803594) internal successors, (2775), 778 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 2775 transitions. [2025-02-17 22:45:52,135 INFO L240 hiAutomatonCegarLoop]: Abstraction has 779 states and 2775 transitions. [2025-02-17 22:45:52,135 INFO L432 stractBuchiCegarLoop]: Abstraction has 779 states and 2775 transitions. [2025-02-17 22:45:52,135 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:52,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 779 states and 2775 transitions. [2025-02-17 22:45:52,142 INFO L131 ngComponentsAnalysis]: Automaton has 117 accepting balls. 440 [2025-02-17 22:45:52,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:52,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:52,143 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:52,143 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:52,143 INFO L752 eck$LassoCheckResult]: Stem: "[109] $Ultimate##0-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[112] L12-->L37: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:45:52,143 INFO L754 eck$LassoCheckResult]: Loop: "[92] L37-->L39: 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[]" "[95] L39-->L40: Formula: (= (+ v_x2_5 1) v_x2_4) InVars {x2=v_x2_5} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[98] L40-->L37: Formula: (= v_x1_5 (+ v_x1_6 1)) InVars {x1=v_x1_6} OutVars{x1=v_x1_5} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:52,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:52,144 INFO L85 PathProgramCache]: Analyzing trace with hash 4452, now seen corresponding path program 1 times [2025-02-17 22:45:52,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:52,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71855813] [2025-02-17 22:45:52,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:52,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:52,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:52,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:52,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,149 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:52,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:52,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:52,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:52,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash 121246, now seen corresponding path program 1 times [2025-02-17 22:45:52,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:52,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275924248] [2025-02-17 22:45:52,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:52,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:52,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:52,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,155 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:52,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:52,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:52,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:52,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:52,158 INFO L85 PathProgramCache]: Analyzing trace with hash 132720987, now seen corresponding path program 1 times [2025-02-17 22:45:52,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:52,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495522140] [2025-02-17 22:45:52,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:52,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:52,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:52,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:52,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,161 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:52,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:52,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:52,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:52,188 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:52,188 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:52,188 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:52,188 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:52,188 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:52,188 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,188 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:52,188 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:52,188 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:52,188 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:52,188 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:52,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:52,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:52,222 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:52,222 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:52,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,224 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:45:52,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:52,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:52,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:52,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:45:52,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:52,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:52,269 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:52,269 INFO L401 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] [2025-02-17 22:45:52,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:45:52,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,277 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:45:52,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:52,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:52,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:45:52,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,300 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:45:52,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:52,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:52,374 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:52,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-17 22:45:52,379 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:52,379 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:52,379 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:52,380 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:52,380 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:52,380 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,380 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:52,380 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:52,380 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:52,380 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:52,380 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:52,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:52,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:52,410 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:52,410 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:52,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,414 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:45:52,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:52,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:52,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:52,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:52,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:52,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:52,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:52,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:52,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:52,447 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 [2025-02-17 22:45:52,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,449 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:45:52,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:52,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:52,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:52,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:52,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:52,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:52,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:52,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:52,466 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:52,468 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:52,469 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:52,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,470 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:45:52,473 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:52,473 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:52,473 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:52,473 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-02-17 22:45:52,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-17 22:45:52,484 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:52,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:52,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:52,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:52,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:52,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:52,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:52,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:52,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:52,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:52,519 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:52,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:52,553 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 [2025-02-17 22:45:52,554 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 779 states and 2775 transitions. cyclomatic complexity: 2140 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:52,646 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 779 states and 2775 transitions. cyclomatic complexity: 2140. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2211 states and 8126 transitions. Complement of second has 6 states. [2025-02-17 22:45:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-02-17 22:45:52,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 78 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:45:52,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:52,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 78 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:52,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:52,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 78 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:45:52,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:52,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2211 states and 8126 transitions. [2025-02-17 22:45:52,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:52,690 INFO L131 ngComponentsAnalysis]: Automaton has 152 accepting balls. 437 [2025-02-17 22:45:52,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2211 states to 1653 states and 6022 transitions. [2025-02-17 22:45:52,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 634 [2025-02-17 22:45:52,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 811 [2025-02-17 22:45:52,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1653 states and 6022 transitions. [2025-02-17 22:45:52,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:52,712 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1653 states and 6022 transitions. [2025-02-17 22:45:52,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states and 6022 transitions. [2025-02-17 22:45:52,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1477. [2025-02-17 22:45:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1477 states have (on average 3.679079214624238) internal successors, (5434), 1476 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 5434 transitions. [2025-02-17 22:45:52,764 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1477 states and 5434 transitions. [2025-02-17 22:45:52,764 INFO L432 stractBuchiCegarLoop]: Abstraction has 1477 states and 5434 transitions. [2025-02-17 22:45:52,764 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:52,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1477 states and 5434 transitions. [2025-02-17 22:45:52,774 INFO L131 ngComponentsAnalysis]: Automaton has 152 accepting balls. 437 [2025-02-17 22:45:52,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:52,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:52,774 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:52,774 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:52,775 INFO L752 eck$LassoCheckResult]: Stem: "[109] $Ultimate##0-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[83] L23-->L28-1: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" [2025-02-17 22:45:52,775 INFO L754 eck$LassoCheckResult]: Loop: "[86] L28-1-->L30: 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[]" "[89] L30-->L28-1: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:45:52,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:52,775 INFO L85 PathProgramCache]: Analyzing trace with hash 4423, now seen corresponding path program 1 times [2025-02-17 22:45:52,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:52,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767701200] [2025-02-17 22:45:52,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:52,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:52,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:52,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:52,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,781 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:52,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:52,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:52,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:52,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:52,786 INFO L85 PathProgramCache]: Analyzing trace with hash 3716, now seen corresponding path program 1 times [2025-02-17 22:45:52,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:52,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662793388] [2025-02-17 22:45:52,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:52,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:52,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:52,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:52,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,788 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:52,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:52,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:52,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:52,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:52,790 INFO L85 PathProgramCache]: Analyzing trace with hash 4253258, now seen corresponding path program 1 times [2025-02-17 22:45:52,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:52,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444280103] [2025-02-17 22:45:52,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:52,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:52,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:52,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:52,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,793 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:52,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:52,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:52,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:52,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:52,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:52,807 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:52,807 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:52,807 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:52,807 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:52,807 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:52,807 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,807 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:52,807 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:52,807 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:52,807 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:52,807 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:52,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:52,823 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:52,823 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:52,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,825 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:45:52,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:52,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:52,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-17 22:45:52,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,848 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:45:52,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:52,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:52,926 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:52,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:45:52,931 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:52,931 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:52,931 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:52,931 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:52,931 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:52,931 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,931 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:52,931 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:52,931 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:52,931 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:52,931 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:52,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:52,958 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:52,958 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:52,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,960 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:45:52,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:52,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:52,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:52,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:52,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:52,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:52,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:52,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:52,975 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:52,977 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:52,977 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:52,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:52,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:52,979 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:52,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:45:52,980 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:52,980 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:52,981 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:52,981 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x3) = 1*z - 1*x3 Supporting invariants [] [2025-02-17 22:45:52,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:52,987 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:53,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:53,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:53,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:53,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:53,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:53,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:53,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:53,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:53,013 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:53,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:53,027 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:53,027 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1477 states and 5434 transitions. cyclomatic complexity: 4211 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:53,124 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1477 states and 5434 transitions. cyclomatic complexity: 4211. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2652 states and 10233 transitions. Complement of second has 6 states. [2025-02-17 22:45:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2025-02-17 22:45:53,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:45:53,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:53,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:45:53,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:53,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:45:53,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:53,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2652 states and 10233 transitions. [2025-02-17 22:45:53,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:45:53,178 INFO L131 ngComponentsAnalysis]: Automaton has 150 accepting balls. 399 [2025-02-17 22:45:53,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2652 states to 2142 states and 8274 transitions. [2025-02-17 22:45:53,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 691 [2025-02-17 22:45:53,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 866 [2025-02-17 22:45:53,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2142 states and 8274 transitions. [2025-02-17 22:45:53,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:53,198 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2142 states and 8274 transitions. [2025-02-17 22:45:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2142 states and 8274 transitions. [2025-02-17 22:45:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2142 to 1893. [2025-02-17 22:45:53,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1893 states have (on average 3.937665081880613) internal successors, (7454), 1892 states have internal predecessors, (7454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 7454 transitions. [2025-02-17 22:45:53,244 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1893 states and 7454 transitions. [2025-02-17 22:45:53,244 INFO L432 stractBuchiCegarLoop]: Abstraction has 1893 states and 7454 transitions. [2025-02-17 22:45:53,244 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:53,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1893 states and 7454 transitions. [2025-02-17 22:45:53,254 INFO L131 ngComponentsAnalysis]: Automaton has 150 accepting balls. 399 [2025-02-17 22:45:53,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:53,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:53,255 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:53,255 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:53,255 INFO L752 eck$LassoCheckResult]: Stem: "[109] $Ultimate##0-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[112] L12-->L37: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[115] L13-->L51: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-02-17 22:45:53,255 INFO L754 eck$LassoCheckResult]: Loop: "[100] L51-->L53: Formula: (< v_x5_1 v_z_9) InVars {x5=v_x5_1, z=v_z_9} OutVars{x5=v_x5_1, z=v_z_9} AuxVars[] AssignedVars[]" "[103] L53-->L54: Formula: (= v_x5_2 (+ v_x5_3 1)) InVars {x5=v_x5_3} OutVars{x5=v_x5_2} AuxVars[] AssignedVars[x5]" "[106] L54-->L51: Formula: (= v_x1_7 (+ v_x1_8 1)) InVars {x1=v_x1_8} OutVars{x1=v_x1_7} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:53,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash 138127, now seen corresponding path program 1 times [2025-02-17 22:45:53,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:53,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717037148] [2025-02-17 22:45:53,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:53,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:53,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,258 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:53,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:53,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash 129190, now seen corresponding path program 1 times [2025-02-17 22:45:53,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:53,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613176563] [2025-02-17 22:45:53,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:53,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:53,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,264 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:53,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:53,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,267 INFO L85 PathProgramCache]: Analyzing trace with hash -179926440, now seen corresponding path program 1 times [2025-02-17 22:45:53,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:53,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415892961] [2025-02-17 22:45:53,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:53,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:53,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:53,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:53,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,274 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:53,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:53,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:53,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:53,298 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:53,298 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:53,298 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:53,298 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:53,298 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:53,298 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,298 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:53,298 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:53,298 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:53,298 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:53,298 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:53,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:53,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:53,324 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:53,325 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:53,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,328 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:53,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:45:53,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:53,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:53,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-17 22:45:53,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,352 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) [2025-02-17 22:45:53,353 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 [2025-02-17 22:45:53,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:53,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:53,378 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:53,378 INFO L401 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] [2025-02-17 22:45:53,384 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 [2025-02-17 22:45:53,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,386 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) [2025-02-17 22:45:53,387 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 [2025-02-17 22:45:53,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:53,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:53,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:45:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,405 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) [2025-02-17 22:45:53,406 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 [2025-02-17 22:45:53,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:53,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:53,474 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:53,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:45:53,479 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:53,479 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:53,479 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:53,479 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:53,479 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:53,479 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,479 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:53,479 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:53,479 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:53,479 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:53,479 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:53,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:53,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:53,508 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:53,508 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:53,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,510 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) [2025-02-17 22:45:53,511 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 [2025-02-17 22:45:53,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:53,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:53,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:53,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:53,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:53,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:53,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:53,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:53,525 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:53,530 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 [2025-02-17 22:45:53,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,532 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) [2025-02-17 22:45:53,532 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 [2025-02-17 22:45:53,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:53,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:53,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:53,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:53,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:53,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:53,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:53,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:53,547 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:53,551 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:53,551 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:53,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,554 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) [2025-02-17 22:45:53,555 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 [2025-02-17 22:45:53,556 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:53,556 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:53,556 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:53,556 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x5) = 1*z - 1*x5 Supporting invariants [] [2025-02-17 22:45:53,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:53,563 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:53,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:53,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:53,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:53,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:53,588 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:53,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:53,613 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 [2025-02-17 22:45:53,613 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1893 states and 7454 transitions. cyclomatic complexity: 5858 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:53,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-17 22:45:53,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1893 states and 7454 transitions. cyclomatic complexity: 5858. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5247 states and 21363 transitions. Complement of second has 6 states. [2025-02-17 22:45:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:53,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2025-02-17 22:45:53,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:53,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:53,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:53,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:53,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:53,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:53,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5247 states and 21363 transitions. [2025-02-17 22:45:53,775 INFO L131 ngComponentsAnalysis]: Automaton has 117 accepting balls. 252 [2025-02-17 22:45:53,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5247 states to 3782 states and 15209 transitions. [2025-02-17 22:45:53,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 957 [2025-02-17 22:45:53,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1200 [2025-02-17 22:45:53,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3782 states and 15209 transitions. [2025-02-17 22:45:53,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:53,813 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3782 states and 15209 transitions. [2025-02-17 22:45:53,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states and 15209 transitions. [2025-02-17 22:45:53,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3338. [2025-02-17 22:45:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 3338 states have (on average 4.061713600958658) internal successors, (13558), 3337 states have internal predecessors, (13558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 13558 transitions. [2025-02-17 22:45:53,930 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3338 states and 13558 transitions. [2025-02-17 22:45:53,930 INFO L432 stractBuchiCegarLoop]: Abstraction has 3338 states and 13558 transitions. [2025-02-17 22:45:53,930 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:53,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3338 states and 13558 transitions. [2025-02-17 22:45:53,952 INFO L131 ngComponentsAnalysis]: Automaton has 117 accepting balls. 252 [2025-02-17 22:45:53,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:53,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:53,953 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:53,953 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:53,953 INFO L752 eck$LassoCheckResult]: Stem: "[109] $Ultimate##0-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[112] L12-->L37: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[91] L37-->L42-1: Formula: (<= v_z_6 v_x2_6) InVars {x2=v_x2_6, z=v_z_6} OutVars{x2=v_x2_6, z=v_z_6} AuxVars[] AssignedVars[]" [2025-02-17 22:45:53,953 INFO L754 eck$LassoCheckResult]: Loop: "[94] L42-1-->L44: 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[]" "[97] L44-->L42-1: Formula: (= (+ v_x4_3 1) v_x4_2) InVars {x4=v_x4_3} OutVars{x4=v_x4_2} AuxVars[] AssignedVars[x4]" [2025-02-17 22:45:53,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,954 INFO L85 PathProgramCache]: Analyzing trace with hash 138103, now seen corresponding path program 1 times [2025-02-17 22:45:53,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:53,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971171177] [2025-02-17 22:45:53,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:53,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:53,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,957 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:53,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:53,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:53,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:53,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash 3972, now seen corresponding path program 1 times [2025-02-17 22:45:53,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:53,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447779348] [2025-02-17 22:45:53,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:53,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:53,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:53,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:53,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,962 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:53,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:53,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:53,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:53,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:53,964 INFO L85 PathProgramCache]: Analyzing trace with hash 132719994, now seen corresponding path program 1 times [2025-02-17 22:45:53,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:53,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733817700] [2025-02-17 22:45:53,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:53,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:53,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:53,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:53,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,967 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:53,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:53,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:53,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:53,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:53,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:53,981 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:53,982 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:53,982 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:53,982 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:53,982 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:53,982 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,982 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:53,982 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:53,982 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:45:53,982 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:53,982 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:53,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:53,996 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:53,997 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:53,998 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-17 22:45:54,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:54,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:54,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:54,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:54,021 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-17 22:45:54,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:54,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:54,092 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:54,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:54,097 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:54,097 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:54,097 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:54,097 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:54,097 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:54,097 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,097 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:54,097 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:54,097 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:45:54,097 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:54,097 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:54,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:54,116 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:54,116 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:54,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:54,118 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-17 22:45:54,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:54,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:54,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:54,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:54,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:54,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:54,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:54,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:54,134 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:54,136 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:54,136 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:54,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:54,138 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-02-17 22:45:54,140 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:54,140 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:54,140 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:54,140 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:45:54,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-02-17 22:45:54,147 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:54,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:54,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:54,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:54,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:54,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:54,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:54,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:54,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:54,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:54,171 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:54,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:54,187 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:54,187 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3338 states and 13558 transitions. cyclomatic complexity: 10639 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:54,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:54,312 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3338 states and 13558 transitions. cyclomatic complexity: 10639. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5395 states and 22069 transitions. Complement of second has 6 states. [2025-02-17 22:45:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:54,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2025-02-17 22:45:54,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:45:54,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:54,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:45:54,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:54,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:45:54,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:54,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5395 states and 22069 transitions. [2025-02-17 22:45:54,354 INFO L131 ngComponentsAnalysis]: Automaton has 73 accepting balls. 146 [2025-02-17 22:45:54,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5395 states to 3830 states and 15718 transitions. [2025-02-17 22:45:54,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 901 [2025-02-17 22:45:54,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1027 [2025-02-17 22:45:54,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3830 states and 15718 transitions. [2025-02-17 22:45:54,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:54,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3830 states and 15718 transitions. [2025-02-17 22:45:54,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states and 15718 transitions. [2025-02-17 22:45:54,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 3508. [2025-02-17 22:45:54,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 3508 states have (on average 4.151083238312428) internal successors, (14562), 3507 states have internal predecessors, (14562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:54,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 14562 transitions. [2025-02-17 22:45:54,495 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3508 states and 14562 transitions. [2025-02-17 22:45:54,495 INFO L432 stractBuchiCegarLoop]: Abstraction has 3508 states and 14562 transitions. [2025-02-17 22:45:54,495 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:45:54,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3508 states and 14562 transitions. [2025-02-17 22:45:54,509 INFO L131 ngComponentsAnalysis]: Automaton has 73 accepting balls. 146 [2025-02-17 22:45:54,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:54,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:54,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:54,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:54,510 INFO L752 eck$LassoCheckResult]: Stem: "[109] $Ultimate##0-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[112] L12-->L37: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[115] L13-->L51: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[99] L51-->L56-1: Formula: (<= v_z_10 v_x5_4) InVars {x5=v_x5_4, z=v_z_10} OutVars{x5=v_x5_4, z=v_z_10} AuxVars[] AssignedVars[]" [2025-02-17 22:45:54,510 INFO L754 eck$LassoCheckResult]: Loop: "[102] L56-1-->L58: Formula: (< v_x6_1 v_z_11) InVars {x6=v_x6_1, z=v_z_11} OutVars{x6=v_x6_1, z=v_z_11} AuxVars[] AssignedVars[]" "[105] L58-->L56-1: Formula: (= v_x6_2 (+ v_x6_3 1)) InVars {x6=v_x6_3} OutVars{x6=v_x6_2} AuxVars[] AssignedVars[x6]" [2025-02-17 22:45:54,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash 4282036, now seen corresponding path program 1 times [2025-02-17 22:45:54,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:54,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748716132] [2025-02-17 22:45:54,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:54,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:54,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:54,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:54,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:54,514 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:54,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:54,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:54,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:54,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:54,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash 4228, now seen corresponding path program 1 times [2025-02-17 22:45:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:54,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892283228] [2025-02-17 22:45:54,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:54,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:54,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:54,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:54,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:54,519 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:54,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:54,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:54,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:54,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:54,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:54,521 INFO L85 PathProgramCache]: Analyzing trace with hash -179927433, now seen corresponding path program 1 times [2025-02-17 22:45:54,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:54,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595827517] [2025-02-17 22:45:54,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:54,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:54,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:54,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:54,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:54,524 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:54,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:54,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:54,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:54,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:54,538 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:54,538 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:54,538 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:54,538 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:54,538 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:54,538 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,539 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:54,539 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:54,539 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration6_Loop [2025-02-17 22:45:54,539 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:54,539 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:54,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:54,555 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:54,555 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:54,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:54,557 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-02-17 22:45:54,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:54,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:54,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:54,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:54,578 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-02-17 22:45:54,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:54,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:54,647 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:54,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:54,652 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:54,652 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:54,652 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:54,652 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:54,652 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:54,652 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,652 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:54,652 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:54,652 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_3.c.bpl_petrified1_Iteration6_Loop [2025-02-17 22:45:54,652 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:54,652 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:54,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:54,669 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:54,670 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:54,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:54,672 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-02-17 22:45:54,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:54,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:54,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:54,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:54,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:54,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:54,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:54,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:54,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:54,700 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:54,700 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:54,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:54,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:54,702 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:54,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-02-17 22:45:54,704 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:54,704 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:54,705 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:54,705 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x6) = 1*z - 1*x6 Supporting invariants [] [2025-02-17 22:45:54,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:54,711 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:54,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:54,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:54,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:54,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:54,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:54,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:54,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:54,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:54,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:54,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:54,732 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:54,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:54,743 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:54,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3508 states and 14562 transitions. cyclomatic complexity: 11452 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:54,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-02-17 22:45:54,913 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3508 states and 14562 transitions. cyclomatic complexity: 11452. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5245 states and 21265 transitions. Complement of second has 6 states. [2025-02-17 22:45:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2025-02-17 22:45:54,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:45:54,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:54,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-17 22:45:54,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:54,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-17 22:45:54,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:54,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5245 states and 21265 transitions. [2025-02-17 22:45:54,981 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:54,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5245 states to 0 states and 0 transitions. [2025-02-17 22:45:54,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:54,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:54,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:54,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:54,982 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:54,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:54,982 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:54,982 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-17 22:45:54,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:54,982 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:54,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:54,991 INFO L201 PluginConnector]: Adding new model seq_loops_part_indep_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:54 BoogieIcfgContainer [2025-02-17 22:45:54,992 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:54,995 INFO L158 Benchmark]: Toolchain (without parser) took 4193.30ms. Allocated memory was 155.2MB in the beginning and 369.1MB in the end (delta: 213.9MB). Free memory was 82.3MB in the beginning and 251.7MB in the end (delta: -169.4MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. [2025-02-17 22:45:54,996 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 83.2MB in the beginning and 83.0MB in the end (delta: 199.3kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:54,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.18ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 81.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:54,996 INFO L158 Benchmark]: Boogie Preprocessor took 10.15ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 80.3MB in the end (delta: 714.8kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-02-17 22:45:54,996 INFO L158 Benchmark]: RCFGBuilder took 169.67ms. Allocated memory is still 155.2MB. Free memory was 80.3MB in the beginning and 71.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:54,996 INFO L158 Benchmark]: BuchiAutomizer took 3990.37ms. Allocated memory was 155.2MB in the beginning and 369.1MB in the end (delta: 213.9MB). Free memory was 71.0MB in the beginning and 251.7MB in the end (delta: -180.7MB). Peak memory consumption was 35.9MB. Max. memory is 8.0GB. [2025-02-17 22:45:54,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 83.2MB in the beginning and 83.0MB in the end (delta: 199.3kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.18ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 81.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 10.15ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 80.3MB in the end (delta: 714.8kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 169.67ms. Allocated memory is still 155.2MB. Free memory was 80.3MB in the beginning and 71.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3990.37ms. Allocated memory was 155.2MB in the beginning and 369.1MB in the end (delta: 213.9MB). Free memory was 71.0MB in the beginning and 251.7MB in the end (delta: -180.7MB). Peak memory consumption was 35.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 6 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 z + -1 * x2 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 -1 * x5 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x6 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1340 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 345 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 339 mSDsluCounter, 345 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 186 mSDtfsCounter, 406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 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: sat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:55,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...