/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:14:25,438 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:14:25,483 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:14:25,507 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:14:25,508 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:14:25,508 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:14:25,511 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:14:25,511 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:14:25,512 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:14:25,515 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:14:25,515 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:14:25,515 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:14:25,515 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:14:25,516 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:14:25,516 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:14:25,517 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:14:25,517 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:14:25,517 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:14:25,517 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:14:25,517 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:14:25,517 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:14:25,518 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:14:25,519 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:14:25,519 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:14:25,519 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:14:25,519 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:14:25,519 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:14:25,519 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:14:25,519 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:14:25,520 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:14:25,520 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:14:25,520 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:14:25,521 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:14:25,522 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:14:25,522 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:14:25,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:14:25,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:14:25,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:14:25,714 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:14:25,715 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:14:25,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl [2023-10-12 17:14:25,716 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl' [2023-10-12 17:14:25,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:14:25,740 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:14:25,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:14:25,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:14:25,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:14:25,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,760 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:14:25,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:14:25,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:14:25,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:14:25,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:14:25,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:14:25,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:14:25,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:14:25,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:14:25,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/1) ... [2023-10-12 17:14:25,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:25,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:25,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:25,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:14:25,840 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:14:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:14:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:14:25,841 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:14:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:14:25,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:14:25,841 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:14:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:14:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:14:25,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:14:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:14:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:14:25,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:14:25,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:14:25,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:14:25,843 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:14:25,879 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:14:25,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:14:25,981 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:14:25,997 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:14:25,997 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:14:25,999 INFO L201 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:14:25 BoogieIcfgContainer [2023-10-12 17:14:25,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:14:26,000 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:14:26,000 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:14:26,003 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:14:26,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:14:26,003 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:14:25" (1/2) ... [2023-10-12 17:14:26,004 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12ac47ad and model type mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:14:26, skipping insertion in model container [2023-10-12 17:14:26,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:14:26,005 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:14:25" (2/2) ... [2023-10-12 17:14:26,006 INFO L332 chiAutomizerObserver]: Analyzing ICFG mult-4.wvr.bpl [2023-10-12 17:14:26,050 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:14:26,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 40 transitions, 112 flow [2023-10-12 17:14:26,087 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2023-10-12 17:14:26,088 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:14:26,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 32 events. 4/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 50 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:14:26,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 40 transitions, 112 flow [2023-10-12 17:14:26,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 32 transitions, 88 flow [2023-10-12 17:14:26,098 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:14:26,108 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 32 transitions, 88 flow [2023-10-12 17:14:26,110 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 32 transitions, 88 flow [2023-10-12 17:14:26,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 88 flow [2023-10-12 17:14:26,117 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2023-10-12 17:14:26,117 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:14:26,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 32 events. 4/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 50 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:14:26,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:14:26,353 INFO L134 LiptonReduction]: Checked pairs total: 207 [2023-10-12 17:14:26,353 INFO L136 LiptonReduction]: Total number of compositions: 14 [2023-10-12 17:14:26,366 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:14:26,366 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:14:26,367 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:14:26,367 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:14:26,367 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:14:26,367 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:14:26,367 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:14:26,367 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:14:26,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:14:26,397 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 37 [2023-10-12 17:14:26,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:26,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:26,402 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:14:26,402 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:26,402 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:14:26,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 48 states, but on-demand construction may add more states [2023-10-12 17:14:26,406 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 37 [2023-10-12 17:14:26,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:26,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:26,406 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:14:26,406 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:26,410 INFO L748 eck$LassoCheckResult]: Stem: 48#[$Ultimate##0]don't care [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 51#[L73]don't care [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 53#[L24-1, L73-1]don't care [2023-10-12 17:14:26,410 INFO L750 eck$LassoCheckResult]: Loop: 53#[L24-1, L73-1]don't care [126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1] 53#[L24-1, L73-1]don't care [2023-10-12 17:14:26,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:26,416 INFO L85 PathProgramCache]: Analyzing trace with hash 5190, now seen corresponding path program 1 times [2023-10-12 17:14:26,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:26,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953299115] [2023-10-12 17:14:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:26,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:26,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:26,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:26,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:26,522 INFO L85 PathProgramCache]: Analyzing trace with hash 157, now seen corresponding path program 1 times [2023-10-12 17:14:26,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:26,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15891972] [2023-10-12 17:14:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:26,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:26,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:26,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:26,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash 161016, now seen corresponding path program 1 times [2023-10-12 17:14:26,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:26,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462271595] [2023-10-12 17:14:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:26,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:26,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:26,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:26,624 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:26,624 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:26,624 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:26,624 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:26,624 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:26,625 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:26,625 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:26,625 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:26,625 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:14:26,625 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:26,625 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:26,636 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:26,653 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:26,687 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:26,688 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:26,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:26,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:26,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:26,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:14:26,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:26,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:26,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:14:26,730 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {counter=0, C=0} Honda state: {counter=0, C=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:14:26,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:14:26,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:26,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:26,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:26,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:14:26,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:26,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:26,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:26,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:26,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:26,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:26,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:14:26,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:26,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:26,887 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:26,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:26,893 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:26,894 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:26,894 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:26,894 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:26,894 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:26,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:26,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:26,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:26,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:14:26,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:26,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:26,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:26,906 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:26,935 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:26,937 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:26,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:26,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:26,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:26,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:14:26,943 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 [2023-10-12 17:14:26,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:26,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:26,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:26,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:26,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:26,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:26,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:26,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:14:26,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:26,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:26,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:26,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:26,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:14:26,995 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 [2023-10-12 17:14:27,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:27,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:27,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:27,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:27,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:27,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:27,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:27,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:27,022 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:14:27,023 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:14:27,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:27,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:27,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:14:27,077 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:27,077 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:27,078 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:27,078 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N1, i1) = 1*N1 - 1*i1 Supporting invariants [] [2023-10-12 17:14:27,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,085 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:27,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:27,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:27,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:27,143 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:27,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:14:27,173 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:14:27,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 48 states, but on-demand construction may add more states Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-10-12 17:14:27,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 48 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 137 states and 541 transitions. Complement of second has 5 states. [2023-10-12 17:14:27,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:27,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-10-12 17:14:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2023-10-12 17:14:27,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:14:27,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:27,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:14:27,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:27,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:14:27,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:27,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 541 transitions. [2023-10-12 17:14:27,258 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 33 [2023-10-12 17:14:27,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 94 states and 381 transitions. [2023-10-12 17:14:27,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2023-10-12 17:14:27,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2023-10-12 17:14:27,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 381 transitions. [2023-10-12 17:14:27,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:27,269 INFO L219 hiAutomatonCegarLoop]: Abstraction has 94 states and 381 transitions. [2023-10-12 17:14:27,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 381 transitions. [2023-10-12 17:14:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 68. [2023-10-12 17:14:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 4.220588235294118) internal successors, (287), 67 states have internal predecessors, (287), 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) [2023-10-12 17:14:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 287 transitions. [2023-10-12 17:14:27,291 INFO L241 hiAutomatonCegarLoop]: Abstraction has 68 states and 287 transitions. [2023-10-12 17:14:27,291 INFO L430 stractBuchiCegarLoop]: Abstraction has 68 states and 287 transitions. [2023-10-12 17:14:27,291 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:14:27,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 287 transitions. [2023-10-12 17:14:27,293 INFO L131 ngComponentsAnalysis]: Automaton has 33 accepting balls. 33 [2023-10-12 17:14:27,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:27,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:27,293 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:14:27,293 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:27,294 INFO L748 eck$LassoCheckResult]: Stem: 440#[$Ultimate##0]don't care [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 442#[L73]don't care [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 430#[L24-1, L73-1]don't care [109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 396#[L24-1, L74, L35-1]don't care [2023-10-12 17:14:27,294 INFO L750 eck$LassoCheckResult]: Loop: 396#[L24-1, L74, L35-1]don't care [122] L35-1-->L35-1: Formula: (and (< v_i2_17 v_N2_8) (= (+ v_i2_17 1) v_i2_16) (= v_counter_38 (+ v_counter_37 v_C_20)) (< 0 v_counter_38)) InVars {counter=v_counter_38, i2=v_i2_17, N2=v_N2_8, C=v_C_20} OutVars{counter=v_counter_37, i2=v_i2_16, N2=v_N2_8, C=v_C_20} AuxVars[] AssignedVars[counter, i2] 396#[L24-1, L74, L35-1]don't care [2023-10-12 17:14:27,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,294 INFO L85 PathProgramCache]: Analyzing trace with hash 160999, now seen corresponding path program 1 times [2023-10-12 17:14:27,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:27,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055080143] [2023-10-12 17:14:27,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:27,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:27,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,302 INFO L85 PathProgramCache]: Analyzing trace with hash 153, now seen corresponding path program 1 times [2023-10-12 17:14:27,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:27,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706350722] [2023-10-12 17:14:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:27,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:27,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash 4991091, now seen corresponding path program 1 times [2023-10-12 17:14:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:27,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875771116] [2023-10-12 17:14:27,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:27,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:14:27,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:14:27,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875771116] [2023-10-12 17:14:27,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875771116] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:14:27,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:14:27,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-10-12 17:14:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625734218] [2023-10-12 17:14:27,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:14:27,367 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:27,367 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:27,367 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:27,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:27,367 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:27,368 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,368 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:27,368 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:27,368 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:14:27,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:27,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:27,369 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:27,375 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:27,399 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:27,399 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:27,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:27,415 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:27,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:27,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:27,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:14:27,450 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:14:27,451 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {counter=1, C=0} Honda state: {counter=1, C=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:14:27,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:27,473 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:27,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:14:27,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:27,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:27,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:27,506 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:27,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:14:27,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:27,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:27,611 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:27,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,618 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:27,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:27,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:27,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:27,619 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:27,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:27,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:27,619 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:14:27,619 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:27,619 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:27,620 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:27,626 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:27,656 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:27,656 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:27,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:27,657 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:27,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:14:27,662 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 [2023-10-12 17:14:27,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:27,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:27,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:27,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:27,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:27,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:27,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:27,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:14:27,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:27,688 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:27,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:14:27,691 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 [2023-10-12 17:14:27,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:27,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:27,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:27,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:27,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:27,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:27,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:27,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:27,717 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:14:27,717 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:14:27,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:27,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:27,739 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:27,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:14:27,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:27,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:27,742 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:27,742 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, N2) = -1*i2 + 1*N2 Supporting invariants [] [2023-10-12 17:14:27,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,748 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:27,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:27,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:27,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:27,780 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:27,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:14:27,783 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:14:27,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 287 transitions. cyclomatic complexity: 266 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:27,827 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 287 transitions. cyclomatic complexity: 266. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 217 states and 958 transitions. Complement of second has 4 states. [2023-10-12 17:14:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2023-10-12 17:14:27,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 29 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:14:27,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:27,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 29 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:14:27,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:27,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 29 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:14:27,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:27,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 958 transitions. [2023-10-12 17:14:27,846 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 26 [2023-10-12 17:14:27,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 154 states and 669 transitions. [2023-10-12 17:14:27,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2023-10-12 17:14:27,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2023-10-12 17:14:27,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 669 transitions. [2023-10-12 17:14:27,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:27,851 INFO L219 hiAutomatonCegarLoop]: Abstraction has 154 states and 669 transitions. [2023-10-12 17:14:27,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 669 transitions. [2023-10-12 17:14:27,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 125. [2023-10-12 17:14:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 4.64) internal successors, (580), 124 states have internal predecessors, (580), 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) [2023-10-12 17:14:27,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 580 transitions. [2023-10-12 17:14:27,866 INFO L241 hiAutomatonCegarLoop]: Abstraction has 125 states and 580 transitions. [2023-10-12 17:14:27,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:14:27,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:14:27,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:14:27,869 INFO L87 Difference]: Start difference. First operand 125 states and 580 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:27,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:27,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-10-12 17:14:27,933 INFO L93 Difference]: Finished difference Result 192 states and 751 transitions. [2023-10-12 17:14:27,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 751 transitions. [2023-10-12 17:14:27,938 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 26 [2023-10-12 17:14:27,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 175 states and 713 transitions. [2023-10-12 17:14:27,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2023-10-12 17:14:27,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2023-10-12 17:14:27,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 713 transitions. [2023-10-12 17:14:27,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:27,942 INFO L219 hiAutomatonCegarLoop]: Abstraction has 175 states and 713 transitions. [2023-10-12 17:14:27,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 713 transitions. [2023-10-12 17:14:27,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 166. [2023-10-12 17:14:27,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 166 states have (on average 4.174698795180723) internal successors, (693), 165 states have internal predecessors, (693), 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) [2023-10-12 17:14:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 693 transitions. [2023-10-12 17:14:27,952 INFO L241 hiAutomatonCegarLoop]: Abstraction has 166 states and 693 transitions. [2023-10-12 17:14:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:14:27,954 INFO L430 stractBuchiCegarLoop]: Abstraction has 166 states and 693 transitions. [2023-10-12 17:14:27,955 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:14:27,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 693 transitions. [2023-10-12 17:14:27,956 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 26 [2023-10-12 17:14:27,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:27,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:27,961 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:14:27,961 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:27,962 INFO L748 eck$LassoCheckResult]: Stem: 1330#[$Ultimate##0]don't care [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 1332#[L73]don't care [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 1298#[L24-1, L73-1]don't care [109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 1250#[L24-1, L74, L35-1]don't care [112] L74-->L47-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 1254#[L35-1, L75, L47-1, L24-1]don't care [128] L47-1-->L47-1: Formula: (and (= v_counter_49 (+ v_counter_50 v_C_24)) (< v_j1_13 v_M1_8) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_50, j1=v_j1_13, M1=v_M1_8, C=v_C_24} OutVars{counter=v_counter_49, j1=v_j1_12, M1=v_M1_8, C=v_C_24} AuxVars[] AssignedVars[counter, j1] 1348#[L35-1, L75, L47-1, L24-1]don't care [2023-10-12 17:14:27,962 INFO L750 eck$LassoCheckResult]: Loop: 1348#[L35-1, L75, L47-1, L24-1]don't care [128] L47-1-->L47-1: Formula: (and (= v_counter_49 (+ v_counter_50 v_C_24)) (< v_j1_13 v_M1_8) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_50, j1=v_j1_13, M1=v_M1_8, C=v_C_24} OutVars{counter=v_counter_49, j1=v_j1_12, M1=v_M1_8, C=v_C_24} AuxVars[] AssignedVars[counter, j1] 1348#[L35-1, L75, L47-1, L24-1]don't care [2023-10-12 17:14:27,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,962 INFO L85 PathProgramCache]: Analyzing trace with hash 154723639, now seen corresponding path program 1 times [2023-10-12 17:14:27,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:27,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738573029] [2023-10-12 17:14:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:27,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:27,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,976 INFO L85 PathProgramCache]: Analyzing trace with hash 159, now seen corresponding path program 1 times [2023-10-12 17:14:27,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:27,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234724438] [2023-10-12 17:14:27,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:27,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:27,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 501465641, now seen corresponding path program 2 times [2023-10-12 17:14:27,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:27,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752968197] [2023-10-12 17:14:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:27,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:27,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:28,012 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:28,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:28,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:28,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:28,012 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:28,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:28,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:28,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:14:28,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:28,012 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:28,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,017 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,037 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:28,037 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:28,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,053 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:14:28,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:28,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:28,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:14:28,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {counter=0, C=0} Honda state: {counter=0, C=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:14:28,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:28,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,106 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:14:28,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:28,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:28,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:28,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,135 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:14:28,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:28,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:28,251 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:28,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:28,255 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:28,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:28,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:28,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:28,255 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:28,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:28,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:28,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:14:28,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:28,256 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:28,256 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,265 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,297 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:28,297 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:28,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,299 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:14:28,313 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 [2023-10-12 17:14:28,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:28,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:28,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:28,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:28,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:28,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:28,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:28,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:14:28,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:28,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,331 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:14:28,334 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 [2023-10-12 17:14:28,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:28,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:28,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:28,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:28,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:28,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:28,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:28,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:28,373 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:14:28,373 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:14:28,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,374 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:14:28,379 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:28,380 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:28,380 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:28,380 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(j1, M1) = -1*j1 + 1*M1 Supporting invariants [] [2023-10-12 17:14:28,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:28,384 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:28,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:28,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:28,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:28,436 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:28,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:14:28,438 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:14:28,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 166 states and 693 transitions. cyclomatic complexity: 587 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:28,521 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 166 states and 693 transitions. cyclomatic complexity: 587. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 530 states and 2410 transitions. Complement of second has 4 states. [2023-10-12 17:14:28,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:14:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2023-10-12 17:14:28,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 39 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:14:28,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:28,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 39 transitions. Stem has 6 letters. Loop has 1 letters. [2023-10-12 17:14:28,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:28,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 39 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:14:28,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:28,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 530 states and 2410 transitions. [2023-10-12 17:14:28,533 INFO L131 ngComponentsAnalysis]: Automaton has 30 accepting balls. 30 [2023-10-12 17:14:28,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 530 states to 346 states and 1533 transitions. [2023-10-12 17:14:28,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 122 [2023-10-12 17:14:28,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2023-10-12 17:14:28,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 346 states and 1533 transitions. [2023-10-12 17:14:28,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:14:28,539 INFO L219 hiAutomatonCegarLoop]: Abstraction has 346 states and 1533 transitions. [2023-10-12 17:14:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states and 1533 transitions. [2023-10-12 17:14:28,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 269. [2023-10-12 17:14:28,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 269 states have (on average 4.717472118959108) internal successors, (1269), 268 states have internal predecessors, (1269), 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) [2023-10-12 17:14:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 1269 transitions. [2023-10-12 17:14:28,579 INFO L241 hiAutomatonCegarLoop]: Abstraction has 269 states and 1269 transitions. [2023-10-12 17:14:28,579 INFO L430 stractBuchiCegarLoop]: Abstraction has 269 states and 1269 transitions. [2023-10-12 17:14:28,579 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:14:28,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 269 states and 1269 transitions. [2023-10-12 17:14:28,581 INFO L131 ngComponentsAnalysis]: Automaton has 22 accepting balls. 22 [2023-10-12 17:14:28,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:14:28,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:14:28,581 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-10-12 17:14:28,581 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:14:28,582 INFO L748 eck$LassoCheckResult]: Stem: 2198#[$Ultimate##0]don't care [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 2200#[L73]don't care [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 2168#[L24-1, L73-1]don't care [109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 2172#[L24-1, L74, L35-1]don't care [112] L74-->L47-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 2278#[L35-1, L75, L47-1, L24-1]don't care [126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1] 2434#[L35-1, L75, L47-1, L24-1]don't care [115] L75-->L58-1: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2] 2500#[L58-1, L24-1, L35-1, L47-1, L76]don't care [2023-10-12 17:14:28,582 INFO L750 eck$LassoCheckResult]: Loop: 2500#[L58-1, L24-1, L35-1, L47-1, L76]don't care [130] L58-1-->L58-1: Formula: (and (< 0 v_counter_54) (= v_j2_16 (+ v_j2_17 1)) (< v_j2_17 v_M2_8) (= v_counter_54 (+ v_counter_53 v_C_26))) InVars {counter=v_counter_54, j2=v_j2_17, M2=v_M2_8, C=v_C_26} OutVars{counter=v_counter_53, j2=v_j2_16, M2=v_M2_8, C=v_C_26} AuxVars[] AssignedVars[counter, j2] 2500#[L58-1, L24-1, L35-1, L47-1, L76]don't care [2023-10-12 17:14:28,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:28,582 INFO L85 PathProgramCache]: Analyzing trace with hash 501465566, now seen corresponding path program 1 times [2023-10-12 17:14:28,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:28,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121375189] [2023-10-12 17:14:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:28,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:28,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:28,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:28,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash 161, now seen corresponding path program 1 times [2023-10-12 17:14:28,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:28,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244859715] [2023-10-12 17:14:28,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:28,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:28,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:28,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:28,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:28,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1634436508, now seen corresponding path program 1 times [2023-10-12 17:14:28,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:14:28,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625289206] [2023-10-12 17:14:28,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:14:28,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:14:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:28,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:14:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:14:28,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:14:28,701 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:28,701 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:28,701 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:28,701 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:28,701 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:14:28,701 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,701 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:28,701 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:28,702 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:14:28,702 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:28,702 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:28,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,722 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,746 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:28,747 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:14:28,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,748 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:14:28,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:14:28,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:28,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:28,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,765 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-10-12 17:14:28,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:14:28,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:14:28,864 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:14:28,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:28,869 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:14:28,869 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:14:28,869 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:14:28,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:14:28,870 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:14:28,870 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:14:28,870 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:14:28,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:14:28,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:14:28,870 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:14:28,870 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:14:28,914 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:14:28,914 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:14:28,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,915 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-10-12 17:14:28,919 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 [2023-10-12 17:14:28,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:14:28,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:14:28,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:14:28,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:14:28,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:14:28,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:14:28,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:14:28,944 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:14:28,952 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:14:28,952 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:14:28,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:14:28,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:14:28,953 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:14:28,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-10-12 17:14:28,956 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:14:28,956 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:14:28,956 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:14:28,956 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(j2, M2) = -1*j2 + 1*M2 Supporting invariants [] [2023-10-12 17:14:28,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-10-12 17:14:28,960 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:14:28,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:14:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:28,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:14:28,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:14:28,995 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:14:28,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:14:28,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:14:28,995 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:14:28,995 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 269 states and 1269 transitions. cyclomatic complexity: 1088 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-10-12 17:14:29,027 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 269 states and 1269 transitions. cyclomatic complexity: 1088. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 637 states and 2912 transitions. Complement of second has 4 states. [2023-10-12 17:14:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:14:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-10-12 17:14:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2023-10-12 17:14:29,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 6 letters. Loop has 1 letters. [2023-10-12 17:14:29,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:29,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 7 letters. Loop has 1 letters. [2023-10-12 17:14:29,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:29,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:14:29,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:14:29,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 637 states and 2912 transitions. [2023-10-12 17:14:29,034 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:14:29,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 637 states to 0 states and 0 transitions. [2023-10-12 17:14:29,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:14:29,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:14:29,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:14:29,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:14:29,035 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:29,035 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:29,035 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:14:29,035 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:14:29,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:14:29,035 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:14:29,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:14:29,039 INFO L201 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:14:29 BoogieIcfgContainer [2023-10-12 17:14:29,039 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:14:29,040 INFO L158 Benchmark]: Toolchain (without parser) took 3299.20ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 155.1MB in the beginning and 146.8MB in the end (delta: 8.4MB). Peak memory consumption was 50.5MB. Max. memory is 8.0GB. [2023-10-12 17:14:29,040 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 205.5MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:14:29,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.87ms. Allocated memory is still 205.5MB. Free memory was 155.1MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:14:29,040 INFO L158 Benchmark]: Boogie Preprocessor took 15.54ms. Allocated memory is still 205.5MB. Free memory was 153.6MB in the beginning and 152.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:14:29,040 INFO L158 Benchmark]: RCFGBuilder took 221.42ms. Allocated memory is still 205.5MB. Free memory was 152.4MB in the beginning and 172.3MB in the end (delta: -19.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-10-12 17:14:29,041 INFO L158 Benchmark]: BuchiAutomizer took 3039.31ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 172.0MB in the beginning and 146.8MB in the end (delta: 25.3MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB. [2023-10-12 17:14:29,042 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 0.25ms. Allocated memory is still 205.5MB. Free memory is still 156.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.87ms. Allocated memory is still 205.5MB. Free memory was 155.1MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.54ms. Allocated memory is still 205.5MB. Free memory was 153.6MB in the beginning and 152.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 221.42ms. Allocated memory is still 205.5MB. Free memory was 152.4MB in the beginning and 172.3MB in the end (delta: -19.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * BuchiAutomizer took 3039.31ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 172.0MB in the beginning and 146.8MB in the end (delta: 25.3MB). Peak memory consumption was 67.2MB. 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 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N1 + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i2 + N2 and consists of 3 locations. One deterministic module has affine ranking function -1 * j1 + M1 and consists of 3 locations. One deterministic module has affine ranking function -1 * j2 + M2 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 141 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 41 PlacesBefore, 28 PlacesAfterwards, 32 TransitionsBefore, 19 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 207 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 207, independent: 207, independent conditional: 0, independent unconditional: 207, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 162, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 162, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 207, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 162, unknown conditional: 0, unknown unconditional: 162] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:14:29,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:29,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-10-12 17:14:29,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...