/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 --buchiautomizer.automaton.type.for.concurrent.programs PARTIAL_ORDER_BA -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/pc5v.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:52:03,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:52:03,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:52:03,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:52:03,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:52:03,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:52:03,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:52:03,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:52:03,696 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:52:03,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:52:03,696 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:52:03,696 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:52:03,696 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:52:03,696 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:52:03,696 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:52:03,696 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:52:03,696 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:52:03,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:52:03,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:52:03,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:52:03,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:52:03,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:52:03,698 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:52:03,698 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> PARTIAL_ORDER_BA [2025-02-17 22:52:03,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:52:03,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:52:03,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:52:03,955 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:52:03,955 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:52:03,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/pc5v.c.bpl [2025-02-17 22:52:03,956 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/pc5v.c.bpl' [2025-02-17 22:52:03,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:52:03,972 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:52:03,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:52:03,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:52:03,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:52:03,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:03,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:03,990 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:52:03,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:52:03,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:52:03,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:52:03,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:52:03,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:03,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:03,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:03,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:03,999 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:03,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:04,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:04,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:04,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:04,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:52:04,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:52:04,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:52:04,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:52:04,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/1) ... [2025-02-17 22:52:04,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:04,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:04,042 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 22:52:04,044 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 22:52:04,062 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:52:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:52:04,062 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:52:04,062 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:52:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:52:04,062 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:52:04,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:52:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:52:04,063 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:52:04,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:52:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:52:04,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:52:04,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:52:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:52:04,063 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:52:04,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:52:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:52:04,063 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:52:04,064 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 22:52:04,101 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:52:04,102 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:52:04,180 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:52:04,180 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:52:04,189 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:52:04,189 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:52:04,190 INFO L201 PluginConnector]: Adding new model pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:52:04 BoogieIcfgContainer [2025-02-17 22:52:04,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:52:04,191 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:52:04,191 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:52:04,196 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:52:04,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:52:04,197 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:52:03" (1/2) ... [2025-02-17 22:52:04,198 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c34042a and model type pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:52:04, skipping insertion in model container [2025-02-17 22:52:04,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:52:04,198 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:52:04" (2/2) ... [2025-02-17 22:52:04,200 INFO L363 chiAutomizerObserver]: Analyzing ICFG pc5v.c.bpl [2025-02-17 22:52:04,272 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-02-17 22:52:04,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 52 transitions, 139 flow [2025-02-17 22:52:04,342 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2025-02-17 22:52:04,343 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-17 22:52:04,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 42 events. 5/42 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 115 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-17 22:52:04,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 52 transitions, 139 flow [2025-02-17 22:52:04,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 42 transitions, 114 flow [2025-02-17 22:52:04,358 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:52:07,152 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:52:07,153 INFO L101 AmpleReduction]: Number of pruned transitions: 16066, Number of non-trivial ample sets: 22827 [2025-02-17 22:52:07,153 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 14843 [2025-02-17 22:52:07,169 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:52:07,169 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:52:07,169 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:52:07,169 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:52:07,169 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:52:07,169 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:52:07,170 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:52:07,170 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:52:07,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10884 states, 10883 states have (on average 3.467701920426353) internal successors, (37739), 10883 states have internal predecessors, (37739), 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 22:52:07,477 INFO L131 ngComponentsAnalysis]: Automaton has 806 accepting balls. 8094 [2025-02-17 22:52:07,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:07,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:07,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:52:07,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:07,484 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:52:07,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10884 states, 10883 states have (on average 3.467701920426353) internal successors, (37739), 10883 states have internal predecessors, (37739), 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 22:52:07,755 INFO L131 ngComponentsAnalysis]: Automaton has 806 accepting balls. 8094 [2025-02-17 22:52:07,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:07,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:07,756 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:52:07,756 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:07,760 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" [2025-02-17 22:52:07,760 INFO L754 eck$LassoCheckResult]: Loop: "[101] L30-->L32: 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[]" "[103] L32-->L33: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[105] L33-->L30: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:07,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:07,764 INFO L85 PathProgramCache]: Analyzing trace with hash 3917, now seen corresponding path program 1 times [2025-02-17 22:52:07,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:07,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831070620] [2025-02-17 22:52:07,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:07,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:07,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:07,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:07,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:07,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:07,821 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:07,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:07,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:07,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:07,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:07,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:07,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:07,843 INFO L85 PathProgramCache]: Analyzing trace with hash 130150, now seen corresponding path program 1 times [2025-02-17 22:52:07,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:07,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467139992] [2025-02-17 22:52:07,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:07,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:07,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:07,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:07,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:07,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:07,853 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:07,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:07,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:07,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:07,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:07,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:07,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:07,861 INFO L85 PathProgramCache]: Analyzing trace with hash 116791706, now seen corresponding path program 1 times [2025-02-17 22:52:07,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:07,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457909513] [2025-02-17 22:52:07,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:07,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:07,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:07,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:07,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:07,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:07,870 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:07,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:52:07,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:52:07,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:07,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:07,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:07,911 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:07,912 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:07,912 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:07,912 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:07,912 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:07,912 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:07,912 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:07,912 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:07,912 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:52:07,912 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:07,912 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:07,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:07,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:08,002 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:08,002 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:08,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,011 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 22:52:08,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:08,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:08,022 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 22:52:08,060 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 [2025-02-17 22:52:08,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,063 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 22:52:08,066 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 22:52:08,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:08,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:08,165 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:52:08,165 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 22:52:08,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:08,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,184 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) [2025-02-17 22:52:08,193 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 22:52:08,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:08,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:08,215 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 [2025-02-17 22:52:08,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,217 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 22:52:08,218 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 22:52:08,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:08,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:08,293 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:08,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:52:08,298 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:08,299 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:08,299 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:08,299 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:08,299 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:08,299 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,299 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:08,299 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:08,299 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:52:08,299 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:08,299 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:08,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:08,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:08,332 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:08,336 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:08,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,342 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 22:52:08,345 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 22:52:08,347 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 22:52:08,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:08,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:08,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:08,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:08,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:08,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:08,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:08,366 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:52:08,372 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 22:52:08,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,374 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 22:52:08,375 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 22:52:08,377 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 22:52:08,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:08,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:08,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:08,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:08,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:08,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:08,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:08,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:08,394 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:08,394 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:52:08,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:08,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:08,397 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 22:52:08,399 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 22:52:08,400 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:08,400 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:08,400 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:08,400 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-02-17 22:52:08,406 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 22:52:08,409 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:08,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:08,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:52:08,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:52:08,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:08,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:08,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:08,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:08,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:08,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:08,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:08,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:08,448 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:08,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:08,483 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 22:52:08,503 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 22:52:08,528 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10884 states, 10883 states have (on average 3.467701920426353) internal successors, (37739), 10883 states have internal predecessors, (37739), 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) 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 22:52:09,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10884 states, 10883 states have (on average 3.467701920426353) internal successors, (37739), 10883 states have internal predecessors, (37739), 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). 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 26371 states and 101419 transitions. Complement of second has 6 states. [2025-02-17 22:52:09,007 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 22:52:09,010 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 22:52:09,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2025-02-17 22:52:09,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 100 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:52:09,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:09,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 100 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:52:09,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:09,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 100 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:52:09,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:09,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26371 states and 101419 transitions. [2025-02-17 22:52:09,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:09,594 INFO L131 ngComponentsAnalysis]: Automaton has 830 accepting balls. 6571 [2025-02-17 22:52:09,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26371 states to 19143 states and 79624 transitions. [2025-02-17 22:52:09,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10166 [2025-02-17 22:52:09,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13154 [2025-02-17 22:52:09,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19143 states and 79624 transitions. [2025-02-17 22:52:09,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:09,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19143 states and 79624 transitions. [2025-02-17 22:52:10,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19143 states and 79624 transitions. [2025-02-17 22:52:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19143 to 16169. [2025-02-17 22:52:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16169 states, 16169 states have (on average 4.073473931597501) internal successors, (65864), 16168 states have internal predecessors, (65864), 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 22:52:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16169 states to 16169 states and 65864 transitions. [2025-02-17 22:52:10,819 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16169 states and 65864 transitions. [2025-02-17 22:52:10,819 INFO L432 stractBuchiCegarLoop]: Abstraction has 16169 states and 65864 transitions. [2025-02-17 22:52:10,819 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:52:10,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16169 states and 65864 transitions. [2025-02-17 22:52:10,990 INFO L131 ngComponentsAnalysis]: Automaton has 830 accepting balls. 6571 [2025-02-17 22:52:10,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:10,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:10,991 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-02-17 22:52:10,991 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:10,992 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[100] L30-->L35: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[102] L35-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[104] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" [2025-02-17 22:52:10,992 INFO L754 eck$LassoCheckResult]: Loop: "[107] L41-->L43: 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[]" "[109] L43-->L44: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[111] L44-->L41: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:10,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash -674455055, now seen corresponding path program 1 times [2025-02-17 22:52:10,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:10,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115502670] [2025-02-17 22:52:10,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:10,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:10,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:52:10,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:52:10,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:10,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:10,998 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:10,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:52:11,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:52:11,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:11,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:11,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:11,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:11,002 INFO L85 PathProgramCache]: Analyzing trace with hash 136108, now seen corresponding path program 1 times [2025-02-17 22:52:11,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:11,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884989642] [2025-02-17 22:52:11,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:11,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:11,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:11,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:11,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:11,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:11,009 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:11,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:11,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:11,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:11,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:11,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:11,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash -833426500, now seen corresponding path program 1 times [2025-02-17 22:52:11,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:11,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569385702] [2025-02-17 22:52:11,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:11,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:52:11,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:52:11,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:11,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:11,021 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:11,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:52:11,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:52:11,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:11,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:11,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:11,063 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:11,063 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:11,063 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:11,063 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:11,064 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:11,064 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,064 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:11,064 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:11,064 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:52:11,064 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:11,064 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:11,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:11,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:11,109 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:11,109 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:11,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:11,112 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 22:52:11,113 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 22:52:11,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:11,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:11,149 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 22:52:11,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:11,157 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 22:52:11,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:11,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:11,163 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 22:52:11,229 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:52:11,229 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 22:52:11,245 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 22:52:11,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:11,250 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 22:52:11,250 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 22:52:11,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:11,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:11,272 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 [2025-02-17 22:52:11,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:11,275 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 22:52:11,276 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 22:52:11,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:11,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:11,344 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:11,349 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 22:52:11,350 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:11,350 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:11,350 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:11,350 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:11,350 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:11,350 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,350 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:11,350 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:11,350 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:52:11,350 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:11,350 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:11,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:11,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:11,379 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:11,380 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:11,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:11,382 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:11,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:52:11,385 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 22:52:11,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:11,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:11,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:11,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:11,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:11,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:11,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:11,399 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:52:11,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:11,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:11,514 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:11,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:52:11,516 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 22:52:11,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:11,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:11,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:11,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:11,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:11,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:11,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:11,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:11,532 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:11,532 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:52:11,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:11,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:11,534 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:11,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:52:11,537 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:11,537 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:11,537 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:11,537 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-02-17 22:52:11,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:11,544 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:11,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:11,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:52:11,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:52:11,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:11,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:11,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:11,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:11,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:11,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:11,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:11,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:11,573 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:11,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:11,599 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 22:52:11,600 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 22:52:11,601 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16169 states and 65864 transitions. cyclomatic complexity: 50812 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 22:52:12,069 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16169 states and 65864 transitions. cyclomatic complexity: 50812. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 40032 states and 172926 transitions. Complement of second has 6 states. [2025-02-17 22:52:12,069 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 22:52:12,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 22:52:12,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-02-17 22:52:12,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:52:12,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:12,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 9 letters. Loop has 3 letters. [2025-02-17 22:52:12,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:12,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 104 transitions. Stem has 6 letters. Loop has 6 letters. [2025-02-17 22:52:12,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:12,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40032 states and 172926 transitions. [2025-02-17 22:52:12,536 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 [2025-02-17 22:52:12,822 INFO L131 ngComponentsAnalysis]: Automaton has 1050 accepting balls. 5820 [2025-02-17 22:52:13,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40032 states to 29169 states and 130867 transitions. [2025-02-17 22:52:13,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11392 [2025-02-17 22:52:13,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13971 [2025-02-17 22:52:13,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29169 states and 130867 transitions. [2025-02-17 22:52:13,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:13,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29169 states and 130867 transitions. [2025-02-17 22:52:13,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29169 states and 130867 transitions. [2025-02-17 22:52:14,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29169 to 26591. [2025-02-17 22:52:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26591 states, 26591 states have (on average 4.492760708510398) internal successors, (119467), 26590 states have internal predecessors, (119467), 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 22:52:14,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26591 states to 26591 states and 119467 transitions. [2025-02-17 22:52:14,364 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26591 states and 119467 transitions. [2025-02-17 22:52:14,364 INFO L432 stractBuchiCegarLoop]: Abstraction has 26591 states and 119467 transitions. [2025-02-17 22:52:14,364 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:52:14,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26591 states and 119467 transitions. [2025-02-17 22:52:14,666 INFO L131 ngComponentsAnalysis]: Automaton has 1050 accepting balls. 5820 [2025-02-17 22:52:14,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:14,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:14,666 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:52:14,666 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:14,667 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[100] L30-->L35: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[102] L35-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[104] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[107] L41-->L43: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[141] L16-->L52: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar2_2 3) (= v_thread3Thread1of1ForFork3_thidvar1_2 3) (= v_thread3Thread1of1ForFork3_thidvar0_2 3)) InVars {} OutVars{thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_2, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_2, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_thidvar0, thread3Thread1of1ForFork3_thidvar2, thread3Thread1of1ForFork3_thidvar1]" [2025-02-17 22:52:14,667 INFO L754 eck$LassoCheckResult]: Loop: "[113] L52-->L54: Formula: (< v_y1_1 v_z1_3) InVars {y1=v_y1_1, z1=v_z1_3} OutVars{y1=v_y1_1, z1=v_z1_3} AuxVars[] AssignedVars[]" "[115] L54-->L55: Formula: (= v_y1_2 (+ v_y1_3 1)) InVars {y1=v_y1_3} OutVars{y1=v_y1_2} AuxVars[] AssignedVars[y1]" "[117] L55-->L52: Formula: (= v_c_5 (+ v_c_6 1)) InVars {c=v_c_6} OutVars{c=v_c_5} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:14,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:14,668 INFO L85 PathProgramCache]: Analyzing trace with hash 388757299, now seen corresponding path program 1 times [2025-02-17 22:52:14,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:14,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892354493] [2025-02-17 22:52:14,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:14,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:14,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:52:14,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:52:14,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:14,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:14,674 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:14,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:52:14,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:52:14,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:14,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:14,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:14,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:14,685 INFO L85 PathProgramCache]: Analyzing trace with hash 142066, now seen corresponding path program 1 times [2025-02-17 22:52:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:14,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28348582] [2025-02-17 22:52:14,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:14,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:14,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:14,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:14,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:14,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:14,691 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:14,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:14,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:14,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:14,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:14,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:14,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:14,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2057990528, now seen corresponding path program 1 times [2025-02-17 22:52:14,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:14,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655182564] [2025-02-17 22:52:14,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:14,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:14,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:52:14,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:52:14,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:14,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:14,706 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:14,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:52:14,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:52:14,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:14,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:14,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:14,733 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:14,733 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:14,733 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:14,733 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:14,733 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:14,733 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,733 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:14,733 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:14,733 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:52:14,733 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:14,734 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:14,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:14,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:14,757 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:14,758 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:14,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:14,760 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:14,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:52:14,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:14,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:14,784 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 [2025-02-17 22:52:14,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:14,786 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:14,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:52:14,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:14,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:14,820 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:52:14,820 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 22:52:14,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:14,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:14,828 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:14,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:52:14,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:14,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:14,863 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 [2025-02-17 22:52:14,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:14,865 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:14,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:52:14,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:14,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:14,931 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:14,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:14,935 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:14,935 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:14,935 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:14,935 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:14,935 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:14,936 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,936 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:14,936 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:14,936 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:52:14,936 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:14,936 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:14,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:14,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:14,964 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:14,964 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:14,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:14,967 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:14,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:52:14,969 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 22:52:14,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:14,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:14,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:14,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:14,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:14,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:14,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:14,984 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:52:14,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:14,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:14,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:14,992 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:14,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:52:14,995 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 22:52:15,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:15,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:15,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:15,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:15,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:15,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:15,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:15,008 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:15,011 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:15,011 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:52:15,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:15,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:15,013 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:15,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-17 22:52:15,016 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:15,016 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:15,016 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:15,016 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1, z1) = -1*y1 + 1*z1 Supporting invariants [] [2025-02-17 22:52:15,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-17 22:52:15,023 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:15,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:15,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:52:15,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:52:15,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:15,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:15,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:15,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:15,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:15,056 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:15,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:15,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:15,056 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:15,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:15,079 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 22:52:15,080 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:52:15,080 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26591 states and 119467 transitions. cyclomatic complexity: 94704 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 22:52:15,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-17 22:52:15,751 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26591 states and 119467 transitions. cyclomatic complexity: 94704. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 71916 states and 336575 transitions. Complement of second has 6 states. [2025-02-17 22:52:15,752 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 22:52:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 22:52:15,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2025-02-17 22:52:15,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:52:15,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:15,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 11 letters. Loop has 3 letters. [2025-02-17 22:52:15,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:15,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 110 transitions. Stem has 8 letters. Loop has 6 letters. [2025-02-17 22:52:15,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:15,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71916 states and 336575 transitions. [2025-02-17 22:52:17,160 INFO L131 ngComponentsAnalysis]: Automaton has 992 accepting balls. 4094 [2025-02-17 22:52:17,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71916 states to 49217 states and 235885 transitions. [2025-02-17 22:52:17,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13734 [2025-02-17 22:52:17,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16366 [2025-02-17 22:52:17,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49217 states and 235885 transitions. [2025-02-17 22:52:17,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:17,712 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49217 states and 235885 transitions. [2025-02-17 22:52:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49217 states and 235885 transitions. [2025-02-17 22:52:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49217 to 45054. [2025-02-17 22:52:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45054 states, 45054 states have (on average 4.824610467439073) internal successors, (217368), 45053 states have internal predecessors, (217368), 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 22:52:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45054 states to 45054 states and 217368 transitions. [2025-02-17 22:52:19,491 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45054 states and 217368 transitions. [2025-02-17 22:52:19,491 INFO L432 stractBuchiCegarLoop]: Abstraction has 45054 states and 217368 transitions. [2025-02-17 22:52:19,491 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:52:19,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45054 states and 217368 transitions. [2025-02-17 22:52:19,882 INFO L131 ngComponentsAnalysis]: Automaton has 992 accepting balls. 4094 [2025-02-17 22:52:19,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:19,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:19,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:52:19,883 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:19,884 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[100] L30-->L35: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[102] L35-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[104] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[107] L41-->L43: 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[]" "[141] L16-->L52: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar2_2 3) (= v_thread3Thread1of1ForFork3_thidvar1_2 3) (= v_thread3Thread1of1ForFork3_thidvar0_2 3)) InVars {} OutVars{thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_2, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_2, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_thidvar0, thread3Thread1of1ForFork3_thidvar2, thread3Thread1of1ForFork3_thidvar1]" "[144] L17-->L63: Formula: (and (= v_thread4Thread1of1ForFork4_thidvar2_2 4) (= v_thread4Thread1of1ForFork4_thidvar0_2 4) (= v_thread4Thread1of1ForFork4_thidvar1_2 4) (= v_thread4Thread1of1ForFork4_thidvar3_2 4)) InVars {} OutVars{thread4Thread1of1ForFork4_thidvar0=v_thread4Thread1of1ForFork4_thidvar0_2, thread4Thread1of1ForFork4_thidvar1=v_thread4Thread1of1ForFork4_thidvar1_2, thread4Thread1of1ForFork4_thidvar2=v_thread4Thread1of1ForFork4_thidvar2_2, thread4Thread1of1ForFork4_thidvar3=v_thread4Thread1of1ForFork4_thidvar3_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork4_thidvar0, thread4Thread1of1ForFork4_thidvar1, thread4Thread1of1ForFork4_thidvar2, thread4Thread1of1ForFork4_thidvar3]" [2025-02-17 22:52:19,884 INFO L754 eck$LassoCheckResult]: Loop: "[119] L63-->L65: Formula: (< v_x3_1 v_z1_5) InVars {x3=v_x3_1, z1=v_z1_5} OutVars{x3=v_x3_1, z1=v_z1_5} AuxVars[] AssignedVars[]" "[121] L65-->L66: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[123] L66-->L63: Formula: (= v_c_7 (+ v_c_8 1)) InVars {c=v_c_8} OutVars{c=v_c_7} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:19,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:19,884 INFO L85 PathProgramCache]: Analyzing trace with hash -833425475, now seen corresponding path program 1 times [2025-02-17 22:52:19,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:19,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701990554] [2025-02-17 22:52:19,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:19,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:19,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:52:19,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:52:19,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:19,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:19,895 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:19,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:52:19,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:52:19,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:19,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:19,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:19,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:19,911 INFO L85 PathProgramCache]: Analyzing trace with hash 148024, now seen corresponding path program 1 times [2025-02-17 22:52:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:19,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101040355] [2025-02-17 22:52:19,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:19,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:19,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:19,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:19,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:19,921 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:19,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:19,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:19,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:19,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:19,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:19,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:19,924 INFO L85 PathProgramCache]: Analyzing trace with hash 627730684, now seen corresponding path program 1 times [2025-02-17 22:52:19,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:19,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717503500] [2025-02-17 22:52:19,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:19,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:19,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-17 22:52:19,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-17 22:52:19,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:19,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:19,933 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:19,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-17 22:52:19,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-17 22:52:19,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:19,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:19,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:19,970 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:19,970 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:19,970 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:19,970 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:19,970 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:19,970 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:19,970 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:19,970 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:19,970 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:52:19,970 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:19,970 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:19,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:19,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:19,998 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:19,998 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:19,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:19,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:20,002 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:20,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:20,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:20,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-17 22:52:20,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-17 22:52:20,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:20,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:20,048 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:20,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-17 22:52:20,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:20,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:20,149 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:20,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:20,154 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:20,154 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:20,154 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:20,154 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:20,154 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:20,154 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:20,155 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:20,155 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:20,155 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:52:20,155 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:20,155 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:20,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:20,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:20,196 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:20,196 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:20,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:20,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:20,200 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:20,206 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 22:52:20,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-17 22:52:20,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:20,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:20,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:20,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:20,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:20,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:20,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:20,232 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:20,237 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:52:20,238 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:52:20,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:20,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:20,244 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:20,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-17 22:52:20,249 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:20,249 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:20,249 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:20,249 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z1) = -1*x3 + 1*z1 Supporting invariants [] [2025-02-17 22:52:20,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-17 22:52:20,262 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:20,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:20,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:52:20,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:52:20,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:20,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:20,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:20,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:20,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:20,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:20,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:20,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:20,307 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:20,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:20,343 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 22:52:20,343 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 22:52:20,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45054 states and 217368 transitions. cyclomatic complexity: 175036 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 22:52:20,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-02-17 22:52:21,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45054 states and 217368 transitions. cyclomatic complexity: 175036. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 122102 states and 600273 transitions. Complement of second has 6 states. [2025-02-17 22:52:21,954 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 22:52:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 22:52:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2025-02-17 22:52:21,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 116 transitions. Stem has 9 letters. Loop has 3 letters. [2025-02-17 22:52:21,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:21,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 116 transitions. Stem has 12 letters. Loop has 3 letters. [2025-02-17 22:52:21,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:21,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 116 transitions. Stem has 9 letters. Loop has 6 letters. [2025-02-17 22:52:21,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:21,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122102 states and 600273 transitions. [2025-02-17 22:52:24,049 INFO L131 ngComponentsAnalysis]: Automaton has 958 accepting balls. 2874 [2025-02-17 22:52:25,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122102 states to 74501 states and 373683 transitions. [2025-02-17 22:52:25,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16463 [2025-02-17 22:52:25,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18504 [2025-02-17 22:52:25,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74501 states and 373683 transitions. [2025-02-17 22:52:25,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:52:25,252 INFO L218 hiAutomatonCegarLoop]: Abstraction has 74501 states and 373683 transitions. [2025-02-17 22:52:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74501 states and 373683 transitions. [2025-02-17 22:52:26,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74501 to 69563. [2025-02-17 22:52:26,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69563 states, 69563 states have (on average 5.051306010379081) internal successors, (351384), 69562 states have internal predecessors, (351384), 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 22:52:27,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69563 states to 69563 states and 351384 transitions. [2025-02-17 22:52:27,676 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69563 states and 351384 transitions. [2025-02-17 22:52:27,676 INFO L432 stractBuchiCegarLoop]: Abstraction has 69563 states and 351384 transitions. [2025-02-17 22:52:27,676 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:52:27,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69563 states and 351384 transitions. [2025-02-17 22:52:28,338 INFO L131 ngComponentsAnalysis]: Automaton has 958 accepting balls. 2874 [2025-02-17 22:52:28,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:52:28,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:52:28,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:52:28,339 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:52:28,340 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[100] L30-->L35: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[102] L35-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[104] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[107] L41-->L43: 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[]" "[141] L16-->L52: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar2_2 3) (= v_thread3Thread1of1ForFork3_thidvar1_2 3) (= v_thread3Thread1of1ForFork3_thidvar0_2 3)) InVars {} OutVars{thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_2, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_2, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_thidvar0, thread3Thread1of1ForFork3_thidvar2, thread3Thread1of1ForFork3_thidvar1]" "[144] L17-->L63: Formula: (and (= v_thread4Thread1of1ForFork4_thidvar2_2 4) (= v_thread4Thread1of1ForFork4_thidvar0_2 4) (= v_thread4Thread1of1ForFork4_thidvar1_2 4) (= v_thread4Thread1of1ForFork4_thidvar3_2 4)) InVars {} OutVars{thread4Thread1of1ForFork4_thidvar0=v_thread4Thread1of1ForFork4_thidvar0_2, thread4Thread1of1ForFork4_thidvar1=v_thread4Thread1of1ForFork4_thidvar1_2, thread4Thread1of1ForFork4_thidvar2=v_thread4Thread1of1ForFork4_thidvar2_2, thread4Thread1of1ForFork4_thidvar3=v_thread4Thread1of1ForFork4_thidvar3_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork4_thidvar0, thread4Thread1of1ForFork4_thidvar1, thread4Thread1of1ForFork4_thidvar2, thread4Thread1of1ForFork4_thidvar3]" "[132] L18-->$Ultimate##0: Formula: (and (= 5 v_thread5Thread1of1ForFork0_thidvar4_2) (= 5 v_thread5Thread1of1ForFork0_thidvar3_2) (= 5 v_thread5Thread1of1ForFork0_thidvar2_2) (= 5 v_thread5Thread1of1ForFork0_thidvar1_2) (= 5 v_thread5Thread1of1ForFork0_thidvar0_2)) InVars {} OutVars{thread5Thread1of1ForFork0_thidvar4=v_thread5Thread1of1ForFork0_thidvar4_2, thread5Thread1of1ForFork0_thidvar3=v_thread5Thread1of1ForFork0_thidvar3_2, thread5Thread1of1ForFork0_thidvar2=v_thread5Thread1of1ForFork0_thidvar2_2, thread5Thread1of1ForFork0_thidvar1=v_thread5Thread1of1ForFork0_thidvar1_2, thread5Thread1of1ForFork0_thidvar0=v_thread5Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork0_thidvar4, thread5Thread1of1ForFork0_thidvar3, thread5Thread1of1ForFork0_thidvar2, thread5Thread1of1ForFork0_thidvar1, thread5Thread1of1ForFork0_thidvar0]" "[124] $Ultimate##0-->L75-1: Formula: (< 3 v_f_10) InVars {f=v_f_10} OutVars{f=v_f_10} AuxVars[] AssignedVars[]" [2025-02-17 22:52:28,340 INFO L754 eck$LassoCheckResult]: Loop: "[126] L75-1-->L77: Formula: (< v_y2_1 v_z2_3) InVars {z2=v_z2_3, y2=v_y2_1} OutVars{z2=v_z2_3, y2=v_y2_1} AuxVars[] AssignedVars[]" "[128] L77-->L78: Formula: (= v_y2_2 (+ v_y2_3 1)) InVars {y2=v_y2_3} OutVars{y2=v_y2_2} AuxVars[] AssignedVars[y2]" "[129] L78-->L75-1: Formula: (= (+ v_c_9 1) v_c_10) InVars {c=v_c_10} OutVars{c=v_c_9} AuxVars[] AssignedVars[c]" [2025-02-17 22:52:28,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:28,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2057960203, now seen corresponding path program 1 times [2025-02-17 22:52:28,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:28,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591331591] [2025-02-17 22:52:28,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:28,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:28,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:52:28,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:52:28,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:28,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:28,455 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 22:52:28,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:52:28,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591331591] [2025-02-17 22:52:28,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591331591] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:52:28,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:52:28,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:52:28,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262206749] [2025-02-17 22:52:28,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:52:28,465 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:52:28,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:28,466 INFO L85 PathProgramCache]: Analyzing trace with hash 154974, now seen corresponding path program 1 times [2025-02-17 22:52:28,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:52:28,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688169072] [2025-02-17 22:52:28,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:52:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:52:28,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:28,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:28,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:28,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:28,478 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:52:28,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:28,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:28,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:28,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:52:28,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:52:28,517 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:28,517 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:28,517 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:28,517 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:28,517 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:52:28,517 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:28,517 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:28,517 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:28,517 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:52:28,517 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:28,518 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:28,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:28,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:28,684 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:28,684 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:52:28,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:28,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:28,687 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:28,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-02-17 22:52:28,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:28,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:28,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:28,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:28,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:28,734 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:28,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-02-17 22:52:28,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:28,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:28,769 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:52:28,769 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=0}, {c=7}, {c=-8}] Lambdas: [0, 1, 1] Nus: [0, 0] [2025-02-17 22:52:28,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:28,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:28,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:28,778 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:28,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-02-17 22:52:28,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:52:28,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:28,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:28,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:28,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:28,825 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:28,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-02-17 22:52:28,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:52:28,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:52:28,942 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:52:28,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:28,947 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:52:28,948 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:52:28,948 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:52:28,948 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:52:28,948 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:52:28,948 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:28,948 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:52:28,948 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:52:28,948 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:52:28,948 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:52:28,948 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:52:28,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:28,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:52:29,002 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:52:29,002 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:52:29,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:29,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:29,010 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:52:29,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-02-17 22:52:29,015 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 22:52:29,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:29,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:29,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:29,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:29,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:29,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:29,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:29,040 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:52:29,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-02-17 22:52:29,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:29,051 INFO L229 MonitoredProcess]: Starting monitored process 32 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 22:52:29,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-02-17 22:52:29,058 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 22:52:29,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:52:29,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:52:29,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:52:29,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:52:29,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:52:29,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:52:29,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:52:29,077 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:52:29,082 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:52:29,083 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:52:29,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:52:29,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:52:29,085 INFO L229 MonitoredProcess]: Starting monitored process 33 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 22:52:29,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-02-17 22:52:29,088 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:52:29,088 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:52:29,088 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:52:29,088 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y2, z2) = -1*y2 + 1*z2 Supporting invariants [] [2025-02-17 22:52:29,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-02-17 22:52:29,096 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:52:29,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:52:29,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:52:29,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:52:29,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:29,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:29,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:52:29,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:29,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:52:29,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:52:29,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:52:29,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:52:29,170 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:52:29,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:52:29,215 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 22:52:29,216 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 22:52:29,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69563 states and 351384 transitions. cyclomatic complexity: 285862 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 22:52:29,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-02-17 22:52:31,233 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69563 states and 351384 transitions. cyclomatic complexity: 285862. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 158938 states and 839730 transitions. Complement of second has 6 states. [2025-02-17 22:52:31,233 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 22:52:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 22:52:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2025-02-17 22:52:31,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 120 transitions. Stem has 11 letters. Loop has 3 letters. [2025-02-17 22:52:31,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:31,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 120 transitions. Stem has 14 letters. Loop has 3 letters. [2025-02-17 22:52:31,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:31,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 120 transitions. Stem has 11 letters. Loop has 6 letters. [2025-02-17 22:52:31,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:52:31,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158938 states and 839730 transitions. [2025-02-17 22:52:34,229 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:52:34,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158938 states to 0 states and 0 transitions. [2025-02-17 22:52:34,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:52:34,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:52:34,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:52:34,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:52:34,230 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:52:34,230 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:52:34,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:52:34,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-17 22:52:34,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-17 22:52:34,233 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:52:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:52:34,235 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-17 22:52:34,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-17 22:52:34,235 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:52:34,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-17 22:52:34,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:52:34,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:52:34,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:52:34,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:52:34,235 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:52:34,235 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:52:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-17 22:52:34,235 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:52:34,235 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:52:34,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:52:34,236 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:52:34,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:52:34,241 INFO L201 PluginConnector]: Adding new model pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:52:34 BoogieIcfgContainer [2025-02-17 22:52:34,241 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:52:34,241 INFO L158 Benchmark]: Toolchain (without parser) took 30269.54ms. Allocated memory was 159.4MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 85.8MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2025-02-17 22:52:34,241 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:52:34,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.86ms. Allocated memory is still 159.4MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:52:34,242 INFO L158 Benchmark]: Boogie Preprocessor took 11.47ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 83.7MB in the end (delta: 642.5kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:52:34,242 INFO L158 Benchmark]: RCFGBuilder took 185.44ms. Allocated memory is still 159.4MB. Free memory was 83.7MB in the beginning and 74.0MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:52:34,242 INFO L158 Benchmark]: BuchiAutomizer took 30049.99ms. Allocated memory was 159.4MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 73.9MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2025-02-17 22:52:34,243 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 0.17ms. Allocated memory is still 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.86ms. Allocated memory is still 159.4MB. Free memory was 85.8MB in the beginning and 84.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 11.47ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 83.7MB in the end (delta: 642.5kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 185.44ms. Allocated memory is still 159.4MB. Free memory was 83.7MB in the beginning and 74.0MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 30049.99ms. Allocated memory was 159.4MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 73.9MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 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. One deterministic module has affine ranking function -1 * y1 + z1 and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z1 and consists of 4 locations. One deterministic module has affine ranking function -1 * y2 + z2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 29.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.1s. Büchi inclusion checks took 5.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 6.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 14653 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 10.2s Buchi closure took 0.1s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 396 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 391 mSDsluCounter, 594 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 323 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 240 IncrementalHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 271 mSDtfsCounter, 240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 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: unsat Degree: 0 Time: 29ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 2.8s InitialAbstraction: Time to compute Ample Reduction [ms]: 2855, Trivial Ample Sets caused by loops: 14843, Number of non-trivial ample sets: 22827, Number of pruned transitions: 16066, Number of transitions in reduction automaton: 37739, Number of states in reduction automaton: 10884, Underlying: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:52:34,253 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...