/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/4_plus_thr/indep_loops_minus1_8.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:25:42,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:25:42,153 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:25:42,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:25:42,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:25:42,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:25:42,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:25:42,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:25:42,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:25:42,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:25:42,173 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:25:42,173 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:25:42,173 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:25:42,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:25:42,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:25:42,175 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:25:42,175 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:25:42,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:25:42,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:25:42,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:25:42,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:25:42,175 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:25:42,175 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:25:42,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:25:42,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:25:42,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:25:42,428 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:25:42,429 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:25:42,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_8.c.bpl [2025-04-26 16:25:42,431 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_8.c.bpl' [2025-04-26 16:25:42,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:25:42,452 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:25:42,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:25:42,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:25:42,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:25:42,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,483 INFO L138 Inliner]: procedures = 9, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:25:42,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:25:42,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:25:42,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:25:42,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:25:42,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,494 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:25:42,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:25:42,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:25:42,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:25:42,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/1) ... [2025-04-26 16:25:42,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:42,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:42,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:42,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:25:42,558 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:25:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:25:42,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:25:42,558 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:25:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:25:42,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:25:42,559 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:25:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:25:42,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:25:42,559 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:25:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:25:42,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:25:42,559 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:25:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:25:42,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:25:42,559 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:25:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:25:42,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:25:42,559 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:25:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:25:42,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:25:42,560 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2025-04-26 16:25:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-04-26 16:25:42,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-04-26 16:25:42,560 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2025-04-26 16:25:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2025-04-26 16:25:42,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2025-04-26 16:25:42,561 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:25:42,601 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:25:42,603 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:25:42,681 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:25:42,681 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:25:42,692 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:25:42,692 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:25:42,693 INFO L201 PluginConnector]: Adding new model indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:25:42 BoogieIcfgContainer [2025-04-26 16:25:42,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:25:42,694 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:25:42,694 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:25:42,699 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:25:42,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:25:42,700 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:42" (1/2) ... [2025-04-26 16:25:42,702 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d20e1bb and model type indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:25:42, skipping insertion in model container [2025-04-26 16:25:42,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:25:42,702 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:25:42" (2/2) ... [2025-04-26 16:25:42,703 INFO L376 chiAutomizerObserver]: Analyzing ICFG indep_loops_minus1_8.c.bpl [2025-04-26 16:25:42,778 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-04-26 16:25:42,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 66 transitions, 188 flow [2025-04-26 16:25:42,828 INFO L116 PetriNetUnfolderBase]: 8/50 cut-off events. [2025-04-26 16:25:42,830 INFO L117 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-04-26 16:25:42,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 50 events. 8/50 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2025-04-26 16:25:42,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 66 transitions, 188 flow [2025-04-26 16:25:42,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 50 transitions, 148 flow [2025-04-26 16:25:42,841 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 67 places, 50 transitions, 148 flow [2025-04-26 16:25:42,849 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:25:42,849 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:25:42,849 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:25:42,849 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:25:42,849 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:25:42,849 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:25:42,849 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:25:42,849 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:25:42,851 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:25:56,281 INFO L131 ngComponentsAnalysis]: Automaton has 12355 accepting balls. 134400 [2025-04-26 16:25:56,282 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:56,282 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:56,291 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:25:56,291 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:25:56,291 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:25:56,291 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 135166 states, but on-demand construction may add more states [2025-04-26 16:26:00,782 INFO L131 ngComponentsAnalysis]: Automaton has 12355 accepting balls. 134400 [2025-04-26 16:26:00,782 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:26:00,782 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:26:00,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:26:00,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:26:00,792 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->L35: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:26:00,792 INFO L754 eck$LassoCheckResult]: Loop: "[125] L35-->L37: 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[]" "[127] L37-->L35: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-04-26 16:26:00,796 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:00,796 INFO L85 PathProgramCache]: Analyzing trace with hash 190, now seen corresponding path program 1 times [2025-04-26 16:26:00,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:26:00,802 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531980950] [2025-04-26 16:26:00,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:26:00,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:26:00,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:26:00,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:26:00,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:00,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:00,853 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:26:00,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:26:00,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:26:00,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:00,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:00,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:26:00,872 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash 4963, now seen corresponding path program 1 times [2025-04-26 16:26:00,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:26:00,872 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927269453] [2025-04-26 16:26:00,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:26:00,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:26:00,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:26:00,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:26:00,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:00,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:00,883 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:26:00,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:26:00,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:26:00,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:00,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:00,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:26:00,896 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:00,896 INFO L85 PathProgramCache]: Analyzing trace with hash 186592, now seen corresponding path program 1 times [2025-04-26 16:26:00,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:26:00,896 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673627517] [2025-04-26 16:26:00,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:26:00,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:26:00,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:26:00,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:26:00,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:00,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:00,903 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:26:00,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:26:00,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:26:00,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:00,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:00,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:26:00,958 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:26:00,959 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:26:00,960 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:26:00,960 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:26:00,960 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:26:00,960 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:00,960 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:26:00,960 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:26:00,960 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_8.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:26:00,960 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:26:00,960 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:26:00,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:01,003 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:26:01,004 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:26:01,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:01,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:01,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:01,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:26:01,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:26:01,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:26:01,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-04-26 16:26:01,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:01,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:01,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:01,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:26:01,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:26:01,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:26:01,106 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:26:01,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:26:01,111 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:26:01,112 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:26:01,112 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:26:01,112 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:26:01,112 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:26:01,112 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:01,112 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:26:01,112 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:26:01,112 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_8.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:26:01,112 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:26:01,112 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:26:01,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:01,145 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:26:01,148 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:26:01,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:01,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:01,153 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:01,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:26:01,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:26:01,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:26:01,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:26:01,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:26:01,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:26:01,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:26:01,175 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:26:01,175 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:26:01,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:26:01,182 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:26:01,183 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:26:01,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:01,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:01,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:01,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:26:01,191 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:26:01,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:26:01,195 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:26:01,196 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:26:01,196 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-04-26 16:26:01,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 16:26:01,208 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:26:01,232 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:01,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:26:01,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:26:01,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:01,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:26:01,365 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:26:01,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:26:01,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:26:01,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:26:01,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:01,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:26:01,391 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:26:01,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:26:01,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:26:01,485 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:26:01,490 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 135166 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:12,225 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 135166 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 378189 states and 3226386 transitions. Complement of second has 6 states. [2025-04-26 16:26:12,228 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:26:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:12,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2025-04-26 16:26:12,243 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 1 letters. Loop has 2 letters. [2025-04-26 16:26:12,243 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:12,243 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:26:12,244 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:12,244 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 1 letters. Loop has 4 letters. [2025-04-26 16:26:12,244 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:12,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 378189 states and 3226386 transitions. [2025-04-26 16:26:27,606 INFO L131 ngComponentsAnalysis]: Automaton has 15125 accepting balls. 133890 [2025-04-26 16:26:36,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 378189 states to 295417 states and 2549209 transitions. [2025-04-26 16:26:36,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134397 [2025-04-26 16:26:38,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 214907 [2025-04-26 16:26:38,814 INFO L74 IsDeterministic]: Start isDeterministic. Operand 295417 states and 2549209 transitions. [2025-04-26 16:26:38,814 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:26:38,814 INFO L218 hiAutomatonCegarLoop]: Abstraction has 295417 states and 2549209 transitions. [2025-04-26 16:26:39,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295417 states and 2549209 transitions. [2025-04-26 16:26:50,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295417 to 214909. [2025-04-26 16:26:51,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214909 states, 214909 states have (on average 8.890186078758916) internal successors, (in total 1910581), 214908 states have internal predecessors, (1910581), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0)