/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/complex_thr1_3indep.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:32,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:32,061 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:32,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:32,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:32,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:32,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:32,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:32,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:32,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:32,082 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:32,083 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:32,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:32,083 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:32,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:32,084 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:32,084 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:32,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:32,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:32,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:32,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:32,084 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:32,084 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:32,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:32,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:32,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:32,300 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:32,300 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:32,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/complex_thr1_3indep.c.bpl [2025-04-26 16:24:32,304 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/complex_thr1_3indep.c.bpl' [2025-04-26 16:24:32,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:32,322 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:32,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:32,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:32,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:32,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,358 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:32,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:32,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:32,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:32,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:32,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:32,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:32,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:32,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:32,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/1) ... [2025-04-26 16:24:32,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:32,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:32,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:32,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:24:32,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:32,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:32,429 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:32,429 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:24:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:24:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:24:32,429 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:32,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:32,430 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:24:32,466 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:32,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:32,561 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:32,561 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:32,572 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:32,572 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:32,573 INFO L201 PluginConnector]: Adding new model complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:32 BoogieIcfgContainer [2025-04-26 16:24:32,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:32,575 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:32,576 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:32,582 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:32,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:32,582 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:32" (1/2) ... [2025-04-26 16:24:32,584 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7eb89fa4 and model type complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:32, skipping insertion in model container [2025-04-26 16:24:32,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:32,584 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:32" (2/2) ... [2025-04-26 16:24:32,585 INFO L376 chiAutomizerObserver]: Analyzing ICFG complex_thr1_3indep.c.bpl [2025-04-26 16:24:32,647 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:24:32,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 34 transitions, 89 flow [2025-04-26 16:24:32,712 INFO L116 PetriNetUnfolderBase]: 5/28 cut-off events. [2025-04-26 16:24:32,714 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:24:32,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 5/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-04-26 16:24:32,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 34 transitions, 89 flow [2025-04-26 16:24:32,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 28 transitions, 74 flow [2025-04-26 16:24:32,725 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 33 places, 28 transitions, 74 flow [2025-04-26 16:24:32,734 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:32,734 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:32,734 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:32,734 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:32,734 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:32,734 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:32,734 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:32,734 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:32,735 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:32,808 INFO L131 ngComponentsAnalysis]: Automaton has 62 accepting balls. 210 [2025-04-26 16:24:32,808 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:32,809 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:32,811 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:32,812 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:32,812 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:32,812 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 253 states, but on-demand construction may add more states [2025-04-26 16:24:32,819 INFO L131 ngComponentsAnalysis]: Automaton has 62 accepting balls. 210 [2025-04-26 16:24:32,819 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:32,820 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:32,820 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:24:32,820 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:32,825 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[100] L13-->L44: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:24:32,825 INFO L754 eck$LassoCheckResult]: Loop: "[88] L44-->L46: Formula: (< v_x1_1 v_y1_1) InVars {y1=v_y1_1, x1=v_x1_1} OutVars{y1=v_y1_1, x1=v_x1_1} AuxVars[] AssignedVars[]" "[90] L46-->L44: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:32,828 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:32,829 INFO L85 PathProgramCache]: Analyzing trace with hash 4068, now seen corresponding path program 1 times [2025-04-26 16:24:32,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:32,834 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392273482] [2025-04-26 16:24:32,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:32,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:32,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:32,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:32,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:32,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:32,881 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:32,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:32,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:32,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:32,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:32,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:32,897 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash 3779, now seen corresponding path program 1 times [2025-04-26 16:24:32,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:32,897 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584437622] [2025-04-26 16:24:32,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:32,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:32,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:32,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:32,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:32,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:32,904 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:32,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:32,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:32,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:32,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:32,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:32,908 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash 3912166, now seen corresponding path program 1 times [2025-04-26 16:24:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:32,908 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839348641] [2025-04-26 16:24:32,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:32,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:32,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:32,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:32,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:32,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:32,913 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:32,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:32,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:32,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:32,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:32,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:32,966 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:32,967 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:32,967 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:32,967 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:32,967 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:32,967 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:32,967 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:32,968 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:32,968 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:32,968 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:32,968 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:32,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:33,010 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:33,010 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:33,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:24:33,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:33,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:33,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:33,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:24:33,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:33,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:33,144 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:33,149 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 16:24:33,149 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:33,149 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:33,149 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:33,149 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:33,149 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:33,149 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,149 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:33,150 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:33,150 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:33,150 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:33,150 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:33,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:33,177 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:33,180 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:33,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:24:33,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:33,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:33,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:33,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:33,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:33,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:33,207 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:33,207 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:33,211 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:33,217 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:33,218 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:33,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:24:33,224 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:33,228 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 16:24:33,229 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:33,229 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:33,229 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1, x1) = 1*y1 - 1*x1 Supporting invariants [] [2025-04-26 16:24:33,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:33,238 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:33,267 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:33,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:33,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:33,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:33,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:33,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:33,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:33,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:33,293 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:33,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:33,369 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:33,376 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 253 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:33,511 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 253 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 737 states and 2606 transitions. Complement of second has 6 states. [2025-04-26 16:24:33,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-04-26 16:24:33,522 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:24:33,523 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:33,523 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:24:33,523 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:33,523 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:24:33,523 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:33,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 737 states and 2606 transitions. [2025-04-26 16:24:33,541 INFO L131 ngComponentsAnalysis]: Automaton has 59 accepting balls. 176 [2025-04-26 16:24:33,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 737 states to 549 states and 1927 transitions. [2025-04-26 16:24:33,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2025-04-26 16:24:33,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 391 [2025-04-26 16:24:33,556 INFO L74 IsDeterministic]: Start isDeterministic. Operand 549 states and 1927 transitions. [2025-04-26 16:24:33,556 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:33,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 549 states and 1927 transitions. [2025-04-26 16:24:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states and 1927 transitions. [2025-04-26 16:24:33,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 394. [2025-04-26 16:24:33,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 394 states have (on average 3.6522842639593907) internal successors, (in total 1439), 393 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:33,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1439 transitions. [2025-04-26 16:24:33,599 INFO L240 hiAutomatonCegarLoop]: Abstraction has 394 states and 1439 transitions. [2025-04-26 16:24:33,600 INFO L438 stractBuchiCegarLoop]: Abstraction has 394 states and 1439 transitions. [2025-04-26 16:24:33,600 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:33,600 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 394 states and 1439 transitions. [2025-04-26 16:24:33,603 INFO L131 ngComponentsAnalysis]: Automaton has 59 accepting balls. 176 [2025-04-26 16:24:33,603 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:33,603 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:33,603 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:33,603 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:33,604 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[100] L13-->L44: 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]" "[103] L14-->L53: 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]" [2025-04-26 16:24:33,604 INFO L754 eck$LassoCheckResult]: Loop: "[92] L53-->L55: Formula: (< v_x2_1 v_y2_1) InVars {y2=v_y2_1, x2=v_x2_1} OutVars{y2=v_y2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[94] L55-->L53: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-04-26 16:24:33,604 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,604 INFO L85 PathProgramCache]: Analyzing trace with hash 126211, now seen corresponding path program 1 times [2025-04-26 16:24:33,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:33,604 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425731847] [2025-04-26 16:24:33,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:33,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:33,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:33,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:33,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,611 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:33,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:33,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:33,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:33,616 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 1 times [2025-04-26 16:24:33,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:33,616 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125359321] [2025-04-26 16:24:33,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:33,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:33,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:33,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:33,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,620 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:33,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:33,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:33,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:33,624 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,625 INFO L85 PathProgramCache]: Analyzing trace with hash 121291717, now seen corresponding path program 1 times [2025-04-26 16:24:33,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:33,625 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420267998] [2025-04-26 16:24:33,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:33,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:33,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:33,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:33,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,631 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:33,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:33,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:33,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:33,655 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:33,655 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:33,655 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:33,655 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:33,655 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:33,655 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,655 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:33,655 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:33,655 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:33,655 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:33,655 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:33,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:33,674 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:33,674 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:33,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:24:33,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:33,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:33,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:24:33,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:24:33,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:33,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:33,748 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:33,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:24:33,753 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:33,753 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:33,753 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:33,753 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:33,753 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:33,753 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,753 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:33,754 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:33,754 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:24:33,754 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:33,754 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:33,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:33,780 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:33,780 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:33,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:24:33,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:33,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:33,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:33,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:33,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:33,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:33,797 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:33,797 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:33,798 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:33,801 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:33,801 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:33,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:33,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:33,803 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:33,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:24:33,806 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:33,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:33,809 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:33,809 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:33,809 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y2, x2) = 1*y2 - 1*x2 Supporting invariants [] [2025-04-26 16:24:33,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:24:33,816 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:33,826 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:33,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:33,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:33,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:33,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:33,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:33,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:33,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:33,840 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:33,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:33,853 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:33,853 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 394 states and 1439 transitions. cyclomatic complexity: 1129 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:33,907 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 394 states and 1439 transitions. cyclomatic complexity: 1129. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1062 states and 4032 transitions. Complement of second has 6 states. [2025-04-26 16:24:33,909 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:33,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:33,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2025-04-26 16:24:33,910 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:24:33,910 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:33,910 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:24:33,910 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:33,910 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:24:33,910 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:33,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1062 states and 4032 transitions. [2025-04-26 16:24:33,921 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 126 [2025-04-26 16:24:33,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1062 states to 704 states and 2640 transitions. [2025-04-26 16:24:33,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 286 [2025-04-26 16:24:33,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 393 [2025-04-26 16:24:33,931 INFO L74 IsDeterministic]: Start isDeterministic. Operand 704 states and 2640 transitions. [2025-04-26 16:24:33,931 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:33,931 INFO L218 hiAutomatonCegarLoop]: Abstraction has 704 states and 2640 transitions. [2025-04-26 16:24:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states and 2640 transitions. [2025-04-26 16:24:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 597. [2025-04-26 16:24:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 597 states have (on average 3.912897822445561) internal successors, (in total 2336), 596 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:33,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 2336 transitions. [2025-04-26 16:24:33,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 597 states and 2336 transitions. [2025-04-26 16:24:33,963 INFO L438 stractBuchiCegarLoop]: Abstraction has 597 states and 2336 transitions. [2025-04-26 16:24:33,963 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:33,963 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 597 states and 2336 transitions. [2025-04-26 16:24:33,967 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 126 [2025-04-26 16:24:33,967 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:33,967 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:33,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:24:33,968 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:33,968 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[75] L25-->L26: Formula: (= v_i_1 v_x_1) InVars {x=v_x_1} OutVars{i=v_i_1, x=v_x_1} AuxVars[] AssignedVars[i]" "[76] L26-->L28-1: Formula: (and (< 0 v_x_2) (< 0 v_y_1)) InVars {y=v_y_1, x=v_x_2} OutVars{y=v_y_1, x=v_x_2} AuxVars[] AssignedVars[]" [2025-04-26 16:24:33,968 INFO L754 eck$LassoCheckResult]: Loop: "[79] L28-1-->L30: Formula: (< 0 v_i_2) InVars {i=v_i_2} OutVars{i=v_i_2} AuxVars[] AssignedVars[]" "[83] L30-->L31: Formula: (= (+ v_i_3 1) v_i_4) InVars {i=v_i_4} OutVars{i=v_i_3} AuxVars[] AssignedVars[i]" "[85] L31-->L28-1: Formula: (= (+ v_z_3 1) v_z_2) InVars {z=v_z_3} OutVars{z=v_z_2} AuxVars[] AssignedVars[z]" [2025-04-26 16:24:33,969 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,969 INFO L85 PathProgramCache]: Analyzing trace with hash 3886763, now seen corresponding path program 1 times [2025-04-26 16:24:33,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:33,969 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552293658] [2025-04-26 16:24:33,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:33,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:33,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:33,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,975 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:33,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:33,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:33,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:33,981 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash 108368, now seen corresponding path program 1 times [2025-04-26 16:24:33,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:33,982 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653964634] [2025-04-26 16:24:33,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:33,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:33,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:33,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:33,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,989 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:33,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:33,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:33,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:33,992 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:33,992 INFO L85 PathProgramCache]: Analyzing trace with hash -173481882, now seen corresponding path program 1 times [2025-04-26 16:24:33,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:33,992 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102796259] [2025-04-26 16:24:33,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:33,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:33,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:33,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:33,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:33,997 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:33,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:33,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:33,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:33,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:34,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:34,020 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:34,020 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:34,021 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:34,021 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:34,021 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:34,021 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,021 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:34,021 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:34,021 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:24:34,021 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:34,021 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:34,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,046 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:34,046 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:34,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,048 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:24:34,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:34,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:34,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:34,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:24:34,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:34,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:34,094 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:34,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:34,099 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:34,099 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:34,099 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:34,099 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:34,099 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:34,099 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,099 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:34,099 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:34,099 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:24:34,099 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:34,099 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:34,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,125 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:34,125 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:34,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,128 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:24:34,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:34,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:34,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:34,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:34,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:34,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:34,141 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:34,141 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:34,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:34,145 INFO L436 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-04-26 16:24:34,145 INFO L437 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:24:34,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:24:34,148 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:34,151 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 [2025-04-26 16:24:34,151 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:34,151 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:34,151 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i) = 1*i Supporting invariants [] [2025-04-26 16:24:34,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:24:34,157 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:34,171 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:34,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:34,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:34,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:34,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:34,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:34,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:34,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:34,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:34,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:34,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:34,189 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:34,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:34,240 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:24:34,240 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 597 states and 2336 transitions. cyclomatic complexity: 1831 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:34,296 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 597 states and 2336 transitions. cyclomatic complexity: 1831. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 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 1612 states and 6348 transitions. Complement of second has 7 states. [2025-04-26 16:24:34,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2025-04-26 16:24:34,297 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 52 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 16:24:34,298 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:34,298 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 52 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 16:24:34,298 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:34,298 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 52 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 16:24:34,298 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:34,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1612 states and 6348 transitions. [2025-04-26 16:24:34,330 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 63 [2025-04-26 16:24:34,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1612 states to 1268 states and 4959 transitions. [2025-04-26 16:24:34,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2025-04-26 16:24:34,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 477 [2025-04-26 16:24:34,346 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1268 states and 4959 transitions. [2025-04-26 16:24:34,346 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:34,346 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1268 states and 4959 transitions. [2025-04-26 16:24:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states and 4959 transitions. [2025-04-26 16:24:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 975. [2025-04-26 16:24:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 975 states have (on average 3.961025641025641) internal successors, (in total 3862), 974 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:34,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 3862 transitions. [2025-04-26 16:24:34,372 INFO L240 hiAutomatonCegarLoop]: Abstraction has 975 states and 3862 transitions. [2025-04-26 16:24:34,372 INFO L438 stractBuchiCegarLoop]: Abstraction has 975 states and 3862 transitions. [2025-04-26 16:24:34,372 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:24:34,372 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 975 states and 3862 transitions. [2025-04-26 16:24:34,378 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 63 [2025-04-26 16:24:34,379 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:34,379 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:34,379 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:24:34,379 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:34,379 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[75] L25-->L26: Formula: (= v_i_1 v_x_1) InVars {x=v_x_1} OutVars{i=v_i_1, x=v_x_1} AuxVars[] AssignedVars[i]" "[76] L26-->L28-1: Formula: (and (< 0 v_x_2) (< 0 v_y_1)) InVars {y=v_y_1, x=v_x_2} OutVars{y=v_y_1, x=v_x_2} AuxVars[] AssignedVars[]" "[78] L28-1-->L33-1: Formula: (<= v_i_5 0) InVars {i=v_i_5} OutVars{i=v_i_5} AuxVars[] AssignedVars[]" [2025-04-26 16:24:34,379 INFO L754 eck$LassoCheckResult]: Loop: "[82] L33-1-->L35: Formula: (< v_i_6 v_y_2) InVars {i=v_i_6, y=v_y_2} OutVars{i=v_i_6, y=v_y_2} AuxVars[] AssignedVars[]" "[84] L35-->L36: Formula: (= (+ v_i_8 1) v_i_7) InVars {i=v_i_8} OutVars{i=v_i_7} AuxVars[] AssignedVars[i]" "[86] L36-->L33-1: Formula: (= v_z_5 (+ v_z_4 1)) InVars {z=v_z_5} OutVars{z=v_z_4} AuxVars[] AssignedVars[z]" [2025-04-26 16:24:34,380 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:34,380 INFO L85 PathProgramCache]: Analyzing trace with hash 120489731, now seen corresponding path program 1 times [2025-04-26 16:24:34,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:34,380 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831845598] [2025-04-26 16:24:34,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:34,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:34,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:34,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:34,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:34,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:34,428 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 16:24:34,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:24:34,428 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831845598] [2025-04-26 16:24:34,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831845598] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:24:34,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:24:34,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 16:24:34,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78457927] [2025-04-26 16:24:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:24:34,432 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-04-26 16:24:34,432 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 111283, now seen corresponding path program 1 times [2025-04-26 16:24:34,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:34,432 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582175363] [2025-04-26 16:24:34,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:34,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:34,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:34,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:34,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:34,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:34,435 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:34,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:34,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:34,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:34,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:34,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:34,460 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:34,460 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:34,460 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:34,460 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:34,460 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:34,460 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,460 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:34,460 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:34,460 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration4_Loop [2025-04-26 16:24:34,460 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:34,461 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:34,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,486 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:34,486 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:34,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,488 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:24:34,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:34,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:34,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:24:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,508 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:24:34,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:34,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:34,533 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:34,533 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {z=0} Honda state: {z=0} Generalized eigenvectors: [{z=-1}, {z=7}, {z=-7}] Lambdas: [8, 1, 1] Nus: [1, 0] [2025-04-26 16:24:34,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:24:34,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,541 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:24:34,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:34,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:34,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:34,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,563 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 16:24:34,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:34,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:34,635 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:34,639 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 [2025-04-26 16:24:34,639 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:34,639 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:34,639 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:34,639 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:34,639 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:34,639 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,639 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:34,639 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:34,639 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3indep.c.bpl_petrified1_Iteration4_Loop [2025-04-26 16:24:34,639 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:34,639 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:34,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:34,666 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:34,667 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:34,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,668 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:24:34,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:34,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:34,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:34,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:34,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:34,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:34,682 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:34,682 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:34,684 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:34,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:34,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,690 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:24:34,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:34,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:34,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:34,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:34,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:34,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:34,703 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:34,703 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:34,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:34,708 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:34,708 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:34,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:34,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:34,710 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:34,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:24:34,711 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:34,713 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 [2025-04-26 16:24:34,714 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:34,714 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:34,714 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y, i) = 1*y - 1*i Supporting invariants [] [2025-04-26 16:24:34,719 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 [2025-04-26 16:24:34,720 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:34,739 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:34,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:34,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:34,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:34,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:34,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:34,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:34,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:34,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:34,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:34,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:34,757 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:34,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:34,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:34,780 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:24:34,781 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 975 states and 3862 transitions. cyclomatic complexity: 3009 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:34,827 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 975 states and 3862 transitions. cyclomatic complexity: 3009. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 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 1579 states and 6209 transitions. Complement of second has 6 states. [2025-04-26 16:24:34,828 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 53 transitions. [2025-04-26 16:24:34,829 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:24:34,829 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:34,829 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 16:24:34,830 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:34,830 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 16:24:34,830 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:34,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1579 states and 6209 transitions. [2025-04-26 16:24:34,845 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:34,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1579 states to 0 states and 0 transitions. [2025-04-26 16:24:34,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:34,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:34,846 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:34,846 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:34,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:34,846 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:34,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:24:34,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-26 16:24:34,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-26 16:24:34,849 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:24:34,851 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-04-26 16:24:34,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-04-26 16:24:34,851 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:34,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-04-26 16:24:34,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:34,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:34,851 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:34,851 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:34,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:34,851 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:34,851 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-26 16:24:34,852 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:34,852 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:24:34,852 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:34,852 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:34,852 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:34,859 INFO L201 PluginConnector]: Adding new model complex_thr1_3indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:34 BoogieIcfgContainer [2025-04-26 16:24:34,859 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:34,860 INFO L158 Benchmark]: Toolchain (without parser) took 2538.05ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 86.1MB in the beginning and 57.3MB in the end (delta: 28.8MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. [2025-04-26 16:24:34,861 INFO L158 Benchmark]: Boogie PL CUP Parser took 1.12ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:34,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.00ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:34,862 INFO L158 Benchmark]: Boogie Preprocessor took 16.46ms. Allocated memory is still 159.4MB. Free memory was 84.2MB in the beginning and 83.2MB in the end (delta: 971.9kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:34,862 INFO L158 Benchmark]: RCFGBuilder took 196.38ms. Allocated memory is still 159.4MB. Free memory was 83.1MB in the beginning and 74.0MB in the end (delta: 9.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:24:34,862 INFO L158 Benchmark]: BuchiAutomizer took 2284.07ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 73.9MB in the beginning and 57.3MB in the end (delta: 16.6MB). Peak memory consumption was 28.0MB. Max. memory is 8.0GB. [2025-04-26 16:24:34,863 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 1.12ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.00ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 84.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 16.46ms. Allocated memory is still 159.4MB. Free memory was 84.2MB in the beginning and 83.2MB in the end (delta: 971.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 196.38ms. Allocated memory is still 159.4MB. Free memory was 83.1MB in the beginning and 74.0MB in the end (delta: 9.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2284.07ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 73.9MB in the beginning and 57.3MB in the end (delta: 16.6MB). Peak memory consumption was 28.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 555 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 196 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 321 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 161 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp84 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 48ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + y1 and consists of 4 locations. One deterministic module has affine ranking function y2 + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function y + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:24:34,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...