/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/pp2.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:35,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:35,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:35,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:35,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:35,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:35,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:35,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:35,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:35,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:35,737 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:35,737 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:35,737 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:35,737 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:35,737 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:35,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:35,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:35,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:35,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:35,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:35,740 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:35,740 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:35,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:35,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:35,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:35,982 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:35,983 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:35,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/pp2.c.bpl [2025-02-17 22:45:35,985 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/pp2.c.bpl' [2025-02-17 22:45:36,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:36,002 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:36,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:36,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:36,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:36,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,021 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:36,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:36,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:36,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:36,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:36,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,031 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:36,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:36,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:36,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:36,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/1) ... [2025-02-17 22:45:36,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:36,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:36,097 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:36,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:36,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:36,097 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:36,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:36,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:36,098 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:36,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:36,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:36,098 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:36,137 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:36,138 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:36,204 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:36,204 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:36,215 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:36,215 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:36,216 INFO L201 PluginConnector]: Adding new model pp2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:36 BoogieIcfgContainer [2025-02-17 22:45:36,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:36,217 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:36,217 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:36,221 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:36,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:36,222 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:35" (1/2) ... [2025-02-17 22:45:36,223 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ce9bc1e and model type pp2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:36, skipping insertion in model container [2025-02-17 22:45:36,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:36,223 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pp2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:36" (2/2) ... [2025-02-17 22:45:36,225 INFO L363 chiAutomizerObserver]: Analyzing ICFG pp2.c.bpl [2025-02-17 22:45:36,276 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-17 22:45:36,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 22 transitions, 58 flow [2025-02-17 22:45:36,327 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2025-02-17 22:45:36,329 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-17 22:45:36,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 18 events. 2/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2025-02-17 22:45:36,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 22 transitions, 58 flow [2025-02-17 22:45:36,336 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 18 transitions, 48 flow [2025-02-17 22:45:36,344 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:36,345 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:36,345 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:36,345 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:36,345 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:36,345 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:36,345 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:36,345 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:36,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:36,377 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 33 [2025-02-17 22:45:36,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:36,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:36,379 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:36,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:36,380 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:36,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 51 states, but on-demand construction may add more states [2025-02-17 22:45:36,382 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 33 [2025-02-17 22:45:36,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:36,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:36,382 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:36,382 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:36,385 INFO L752 eck$LassoCheckResult]: Stem: "[34] $Ultimate##0-->L14: Formula: (= v_f_5 0) InVars {f=v_f_5} OutVars{f=v_f_5} AuxVars[] AssignedVars[]" "[56] L14-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:36,386 INFO L754 eck$LassoCheckResult]: Loop: "[43] L23-->L25: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[45] L25-->L26: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[47] L26-->L23: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-02-17 22:45:36,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:36,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2071, now seen corresponding path program 1 times [2025-02-17 22:45:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:36,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362815417] [2025-02-17 22:45:36,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:36,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:36,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:36,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,438 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:36,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:36,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:36,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:36,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:36,455 INFO L85 PathProgramCache]: Analyzing trace with hash 72556, now seen corresponding path program 1 times [2025-02-17 22:45:36,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:36,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080656738] [2025-02-17 22:45:36,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:36,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:36,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:36,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:36,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,463 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:36,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:36,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:36,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:36,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash 61739926, now seen corresponding path program 1 times [2025-02-17 22:45:36,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:36,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019651522] [2025-02-17 22:45:36,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:36,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:36,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:36,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,475 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:36,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:36,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:36,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:36,533 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:36,533 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:36,533 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:36,533 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:36,534 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:36,534 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,534 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:36,534 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:36,534 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp2.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:36,534 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:36,534 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:36,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:36,557 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:36,611 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:36,613 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:36,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:36,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:36,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:36,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:36,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:45:36,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:36,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:36,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:36,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:45:36,735 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:36,739 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 [2025-02-17 22:45:36,739 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:36,739 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:36,740 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:36,740 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:36,740 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:36,740 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,740 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:36,740 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:36,740 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp2.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:36,740 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:36,740 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:36,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:36,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:36,788 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:36,791 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:36,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,794 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:36,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:45:36,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:36,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:36,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:36,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:36,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:36,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:36,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:36,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:36,813 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:36,819 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:36,819 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:36,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:36,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:45:36,826 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:36,826 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:36,826 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:36,827 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-02-17 22:45:36,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:45:36,838 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:36,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:36,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:36,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:36,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:36,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:36,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:36,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:36,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:36,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:36,887 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:36,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:36,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:36,983 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:36,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 51 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,068 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 51 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 122 states and 254 transitions. Complement of second has 6 states. [2025-02-17 22:45:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-02-17 22:45:37,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:45:37,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:37,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:45:37,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 254 transitions. [2025-02-17 22:45:37,085 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-02-17 22:45:37,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 52 states and 111 transitions. [2025-02-17 22:45:37,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2025-02-17 22:45:37,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2025-02-17 22:45:37,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 111 transitions. [2025-02-17 22:45:37,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:37,090 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 111 transitions. [2025-02-17 22:45:37,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 111 transitions. [2025-02-17 22:45:37,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2025-02-17 22:45:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 2.1136363636363638) internal successors, (93), 43 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 93 transitions. [2025-02-17 22:45:37,107 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 93 transitions. [2025-02-17 22:45:37,108 INFO L432 stractBuchiCegarLoop]: Abstraction has 44 states and 93 transitions. [2025-02-17 22:45:37,108 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:37,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 93 transitions. [2025-02-17 22:45:37,108 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2025-02-17 22:45:37,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:37,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:37,109 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:37,109 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:37,109 INFO L752 eck$LassoCheckResult]: Stem: "[34] $Ultimate##0-->L14: Formula: (= v_f_5 0) InVars {f=v_f_5} OutVars{f=v_f_5} AuxVars[] AssignedVars[]" "[56] L14-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[59] L14-1-->L34: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:45:37,109 INFO L754 eck$LassoCheckResult]: Loop: "[49] L34-->L36: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[51] L36-->L37: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[53] L37-->L34: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-02-17 22:45:37,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,110 INFO L85 PathProgramCache]: Analyzing trace with hash 64260, now seen corresponding path program 1 times [2025-02-17 22:45:37,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694487428] [2025-02-17 22:45:37,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,115 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,119 INFO L85 PathProgramCache]: Analyzing trace with hash 78514, now seen corresponding path program 1 times [2025-02-17 22:45:37,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233366738] [2025-02-17 22:45:37,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,127 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1914418383, now seen corresponding path program 1 times [2025-02-17 22:45:37,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048672423] [2025-02-17 22:45:37,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:37,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:37,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,143 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:37,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:37,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,175 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:37,175 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:37,175 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:37,175 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:37,175 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:37,175 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,175 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:37,175 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:37,175 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp2.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:37,175 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:37,175 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:37,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,219 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:37,219 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:37,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:37,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:45:37,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:37,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:37,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:37,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:37,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:45:37,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:37,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:37,288 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:37,289 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-02-17 22:45:37,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:45:37,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,301 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:37,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:45:37,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:37,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:37,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:45:37,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:37,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:45:37,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:37,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:37,417 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:37,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-17 22:45:37,424 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:37,424 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:37,424 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:37,424 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:37,424 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:37,424 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,424 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:37,424 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:37,424 INFO L132 ssoRankerPreferences]: Filename of dumped script: pp2.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:37,424 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:37,424 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:37,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,457 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:37,458 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:37,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:37,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:45:37,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:37,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:37,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:37,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:37,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:37,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:37,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:37,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:37,477 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:37,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:37,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,486 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:37,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:45:37,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:37,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:37,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:37,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:37,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:37,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:37,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:37,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:37,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:37,504 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:37,504 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:37,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,506 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:37,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:45:37,510 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:37,510 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:37,510 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:37,510 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-02-17 22:45:37,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-17 22:45:37,518 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:37,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:37,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:37,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:37,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:37,545 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:37,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:37,577 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:37,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 93 transitions. cyclomatic complexity: 58 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,607 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 93 transitions. cyclomatic complexity: 58. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 117 states and 263 transitions. Complement of second has 6 states. [2025-02-17 22:45:37,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2025-02-17 22:45:37,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:37,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:37,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:37,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 263 transitions. [2025-02-17 22:45:37,612 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:37,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 0 states and 0 transitions. [2025-02-17 22:45:37,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:37,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:37,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:37,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:37,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:37,612 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:37,612 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:37,612 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:37,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:37,612 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:37,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:37,617 INFO L201 PluginConnector]: Adding new model pp2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:37 BoogieIcfgContainer [2025-02-17 22:45:37,617 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:37,617 INFO L158 Benchmark]: Toolchain (without parser) took 1616.21ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 87.6MB in the beginning and 76.8MB in the end (delta: 10.8MB). Peak memory consumption was 892.1kB. Max. memory is 8.0GB. [2025-02-17 22:45:37,617 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.84ms. Allocated memory is still 159.4MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:37,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.65ms. Allocated memory is still 159.4MB. Free memory was 87.6MB in the beginning and 86.2MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-02-17 22:45:37,618 INFO L158 Benchmark]: Boogie Preprocessor took 12.55ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 85.7MB in the end (delta: 564.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:37,618 INFO L158 Benchmark]: RCFGBuilder took 178.83ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 77.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:37,618 INFO L158 Benchmark]: BuchiAutomizer took 1400.05ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 77.1MB in the beginning and 76.8MB in the end (delta: 259.1kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:37,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.84ms. Allocated memory is still 159.4MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.65ms. Allocated memory is still 159.4MB. Free memory was 87.6MB in the beginning and 86.2MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.55ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 85.7MB in the end (delta: 564.0kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 178.83ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 77.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1400.05ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 77.1MB in the beginning and 76.8MB in the end (delta: 259.1kB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z1 and consists of 4 locations. One deterministic module has affine ranking function z2 + -1 * x2 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 37 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:37,629 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 [2025-02-17 22:45:37,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...