/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/chl/word-trans.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:13:24,654 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:13:24,722 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 17:13:24,749 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:13:24,750 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:13:24,750 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:13:24,751 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:13:24,751 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:13:24,752 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:13:24,754 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:13:24,755 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:13:24,755 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:13:24,755 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:13:24,756 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:13:24,756 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:13:24,757 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:13:24,757 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:13:24,757 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:13:24,757 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:13:24,757 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:13:24,757 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:13:24,758 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:13:24,758 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:13:24,759 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:13:24,759 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:13:24,759 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:13:24,759 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:13:24,759 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:13:24,759 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:13:24,760 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:13:24,760 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:13:24,761 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:13:24,761 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:13:24,762 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:13:24,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:13:24,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:13:24,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:13:24,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:13:24,981 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:13:24,982 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:13:24,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-trans.wvr.bpl [2023-10-12 17:13:24,983 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-trans.wvr.bpl' [2023-10-12 17:13:25,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:13:25,008 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:13:25,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:25,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:13:25,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:13:25,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,037 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:13:25,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:25,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:13:25,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:13:25,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:13:25,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:13:25,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:13:25,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:13:25,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:13:25,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/1) ... [2023-10-12 17:13:25,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:25,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:25,104 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 17:13:25,105 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 17:13:25,130 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:13:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:13:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:13:25,130 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:13:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:13:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:13:25,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:13:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:13:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:13:25,131 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:13:25,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:13:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:13:25,132 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 17:13:25,176 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:13:25,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:13:25,319 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:13:25,371 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:13:25,371 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-10-12 17:13:25,373 INFO L201 PluginConnector]: Adding new model word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:25 BoogieIcfgContainer [2023-10-12 17:13:25,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:13:25,374 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:13:25,374 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:13:25,376 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:13:25,377 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:25,377 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:25" (1/2) ... [2023-10-12 17:13:25,378 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bf1f5d7 and model type word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:13:25, skipping insertion in model container [2023-10-12 17:13:25,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:25,378 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:25" (2/2) ... [2023-10-12 17:13:25,379 INFO L332 chiAutomizerObserver]: Analyzing ICFG word-trans.wvr.bpl [2023-10-12 17:13:25,461 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:13:25,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 31 transitions, 86 flow [2023-10-12 17:13:25,544 INFO L124 PetriNetUnfolderBase]: 6/25 cut-off events. [2023-10-12 17:13:25,545 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:25,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 6/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:13:25,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 31 transitions, 86 flow [2023-10-12 17:13:25,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 68 flow [2023-10-12 17:13:25,554 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:13:25,563 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 25 transitions, 68 flow [2023-10-12 17:13:25,566 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 25 transitions, 68 flow [2023-10-12 17:13:25,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 68 flow [2023-10-12 17:13:25,575 INFO L124 PetriNetUnfolderBase]: 6/25 cut-off events. [2023-10-12 17:13:25,575 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:25,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 6/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:13:25,577 INFO L119 LiptonReduction]: Number of co-enabled transitions 210 [2023-10-12 17:13:25,777 INFO L134 LiptonReduction]: Checked pairs total: 72 [2023-10-12 17:13:25,777 INFO L136 LiptonReduction]: Total number of compositions: 9 [2023-10-12 17:13:25,792 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:13:25,792 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:13:25,792 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:13:25,792 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:13:25,793 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:13:25,793 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:13:25,793 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:13:25,793 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:13:25,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:13:25,832 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 31 [2023-10-12 17:13:25,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:25,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:25,839 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:25,839 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:25,839 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:13:25,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 54 states, but on-demand construction may add more states [2023-10-12 17:13:25,843 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 31 [2023-10-12 17:13:25,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:25,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:25,843 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:25,843 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:25,846 INFO L748 eck$LassoCheckResult]: Stem: 35#[$Ultimate##0]don't care [133] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 38#[L121, $Ultimate##0]don't care [117] $Ultimate##0-->L38: Formula: (and (not v_break_10_13) (= v_i_9_16 0) (= v_count_1_15 v_count_4_11)) InVars {count_4=v_count_4_11, count_1=v_count_1_15} OutVars{break_10=v_break_10_13, count_1=v_count_1_15, count_4=v_count_4_11, i_9=v_i_9_16} AuxVars[] AssignedVars[break_10, i_9] 42#[L121, L38]don't care [2023-10-12 17:13:25,846 INFO L750 eck$LassoCheckResult]: Loop: 42#[L121, L38]don't care [120] L38-->L38: Formula: (let ((.cse1 (not v_break_10_18)) (.cse2 (select v_array_3_15 v_i_9_21)) (.cse3 (select v_array_0_15 v_i_9_21))) (and (< v_i_9_21 v_len_2_15) (let ((.cse0 (= .cse2 .cse3))) (or (and (not v_break_10_17) .cse0 .cse1) (and v_break_10_17 (or v_break_10_18 (not .cse0))))) (< v_i_9_21 v_len_5_17) .cse1 (= v_result_11_17 (ite (< .cse3 .cse2) (- 1) (ite (< .cse2 .cse3) 1 v_result_11_18))) (= (+ v_i_9_21 1) v_i_9_20))) InVars {break_10=v_break_10_18, result_11=v_result_11_18, array_3=v_array_3_15, array_0=v_array_0_15, len_2=v_len_2_15, len_5=v_len_5_17, i_9=v_i_9_21} OutVars{break_10=v_break_10_17, result_11=v_result_11_17, array_3=v_array_3_15, array_0=v_array_0_15, len_2=v_len_2_15, len_5=v_len_5_17, i_9=v_i_9_20} AuxVars[] AssignedVars[break_10, result_11, i_9] 42#[L121, L38]don't care [2023-10-12 17:13:25,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:25,851 INFO L85 PathProgramCache]: Analyzing trace with hash 5201, now seen corresponding path program 1 times [2023-10-12 17:13:25,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:25,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759012093] [2023-10-12 17:13:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:25,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:25,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:25,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:25,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:25,983 INFO L85 PathProgramCache]: Analyzing trace with hash 151, now seen corresponding path program 1 times [2023-10-12 17:13:25,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:25,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007594371] [2023-10-12 17:13:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:25,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:26,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:26,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:26,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:26,024 INFO L85 PathProgramCache]: Analyzing trace with hash 161351, now seen corresponding path program 1 times [2023-10-12 17:13:26,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:26,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982343633] [2023-10-12 17:13:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:26,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:26,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:26,332 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:26,333 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:26,333 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:26,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:26,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:26,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:26,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:26,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:26,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: word-trans.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:13:26,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:26,333 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:26,346 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 17:13:26,353 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 17:13:26,355 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 17:13:26,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:26,598 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:26,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:26,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:26,602 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 17:13:26,609 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 17:13:26,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:26,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:26,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:26,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:26,619 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 17:13:26,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:26,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:26,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:26,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:26,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:26,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:26,658 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 17:13:26,660 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 17:13:26,661 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 17:13:26,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:26,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:26,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:26,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:26,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:26,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:26,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:26,707 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 17:13:26,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:26,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:26,709 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 17:13:26,709 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 17:13:26,724 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 17:13:26,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:26,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:26,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:26,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:26,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:26,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:26,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:26,752 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:13:26,753 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:13:26,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:26,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:26,767 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 17:13:26,768 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 17:13:27,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:27,054 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:27,054 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:27,055 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_2, i_9) = 1*len_2 - 1*i_9 Supporting invariants [] [2023-10-12 17:13:27,065 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 17:13:27,067 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:27,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:27,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:27,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:27,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:27,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:27,114 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 17:13:27,138 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 17:13:27,139 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 54 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 17:13:27,225 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 54 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 170 states and 666 transitions. Complement of second has 5 states. [2023-10-12 17:13:27,227 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 17:13:27,230 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 17:13:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2023-10-12 17:13:27,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:13:27,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:27,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:27,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:27,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:13:27,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:27,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 666 transitions. [2023-10-12 17:13:27,251 INFO L131 ngComponentsAnalysis]: Automaton has 36 accepting balls. 36 [2023-10-12 17:13:27,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 124 states and 478 transitions. [2023-10-12 17:13:27,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 78 [2023-10-12 17:13:27,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-10-12 17:13:27,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2023-10-12 17:13:27,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 478 transitions. [2023-10-12 17:13:27,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:27,288 INFO L219 hiAutomatonCegarLoop]: Abstraction has 124 states and 478 transitions. [2023-10-12 17:13:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states and 478 transitions. [2023-10-12 17:13:27,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 81. [2023-10-12 17:13:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 4.308641975308642) internal successors, (349), 80 states have internal predecessors, (349), 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 17:13:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 349 transitions. [2023-10-12 17:13:27,314 INFO L241 hiAutomatonCegarLoop]: Abstraction has 81 states and 349 transitions. [2023-10-12 17:13:27,314 INFO L430 stractBuchiCegarLoop]: Abstraction has 81 states and 349 transitions. [2023-10-12 17:13:27,314 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:13:27,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 349 transitions. [2023-10-12 17:13:27,315 INFO L131 ngComponentsAnalysis]: Automaton has 24 accepting balls. 24 [2023-10-12 17:13:27,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:27,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:27,316 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:27,316 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:27,316 INFO L748 eck$LassoCheckResult]: Stem: 502#[$Ultimate##0]don't care [133] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 458#[L121, $Ultimate##0]don't care [136] L121-->$Ultimate##0: 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] 422#[L122, $Ultimate##0, $Ultimate##0]don't care [122] $Ultimate##0-->L68: Formula: (and (= v_count_7_13 v_count_4_15) (not v_break_13_21) (= v_i_12_22 0)) InVars {count_7=v_count_7_13, count_4=v_count_4_15} OutVars{i_12=v_i_12_22, count_7=v_count_7_13, break_13=v_break_13_21, count_4=v_count_4_15} AuxVars[] AssignedVars[i_12, break_13] 430#[L122, $Ultimate##0, L68]don't care [2023-10-12 17:13:27,316 INFO L750 eck$LassoCheckResult]: Loop: 430#[L122, $Ultimate##0, L68]don't care [125] L68-->L68: Formula: (let ((.cse0 (not v_break_13_18)) (.cse1 (select v_array_3_11 v_i_12_19)) (.cse2 (select v_array_6_11 v_i_12_19))) (and (= (+ v_i_12_19 1) v_i_12_18) (< v_i_12_19 v_len_5_13) .cse0 (< v_i_12_19 v_len_8_11) (= v_result_14_15 (ite (< .cse1 .cse2) (- 1) (ite (< .cse2 .cse1) 1 v_result_14_16))) (let ((.cse3 (= .cse1 .cse2))) (or (and .cse3 .cse0 (not v_break_13_17)) (and (or (not .cse3) v_break_13_18) v_break_13_17))))) InVars {array_6=v_array_6_11, result_14=v_result_14_16, array_3=v_array_3_11, len_5=v_len_5_13, i_12=v_i_12_19, break_13=v_break_13_18, len_8=v_len_8_11} OutVars{array_6=v_array_6_11, result_14=v_result_14_15, array_3=v_array_3_11, len_5=v_len_5_13, i_12=v_i_12_18, break_13=v_break_13_17, len_8=v_len_8_11} AuxVars[] AssignedVars[result_14, i_12, break_13] 430#[L122, $Ultimate##0, L68]don't care [2023-10-12 17:13:27,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,317 INFO L85 PathProgramCache]: Analyzing trace with hash 161942, now seen corresponding path program 1 times [2023-10-12 17:13:27,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:27,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659127721] [2023-10-12 17:13:27,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:27,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:27,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash 156, now seen corresponding path program 1 times [2023-10-12 17:13:27,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:27,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984482248] [2023-10-12 17:13:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:27,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,334 INFO L85 PathProgramCache]: Analyzing trace with hash 5020327, now seen corresponding path program 1 times [2023-10-12 17:13:27,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:27,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18397468] [2023-10-12 17:13:27,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:27,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:27,489 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:27,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:27,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:27,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:27,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:27,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:27,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:27,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:27,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: word-trans.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:13:27,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:27,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:27,491 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 17:13:27,494 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 17:13:27,556 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 17:13:27,564 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 17:13:27,566 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 17:13:27,722 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:27,722 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:27,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:27,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:27,738 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 17:13:27,739 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 17:13:27,740 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 17:13:27,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:27,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:27,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:27,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:27,751 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:27,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:27,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:27,770 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 17:13:27,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:27,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:27,771 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 17:13:27,773 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 17:13:27,775 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 17:13:27,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:27,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:27,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:27,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:27,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:27,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:27,808 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:27,822 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:13:27,822 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:13:27,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:27,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:27,824 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 17:13:27,826 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 17:13:27,827 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:27,849 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:27,850 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:27,850 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_8, i_12) = 1*len_8 - 1*i_12 Supporting invariants [] [2023-10-12 17:13:27,865 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 17:13:27,866 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:27,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:27,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:27,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:27,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:27,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:27,889 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 17:13:27,889 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 17:13:27,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 349 transitions. cyclomatic complexity: 304 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 17:13:27,940 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 349 transitions. cyclomatic complexity: 304. 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 245 states and 1020 transitions. Complement of second has 4 states. [2023-10-12 17:13:27,940 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 17:13:27,941 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 17:13:27,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2023-10-12 17:13:27,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:27,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:27,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:27,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:27,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:27,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:27,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 1020 transitions. [2023-10-12 17:13:27,960 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 18 [2023-10-12 17:13:27,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 169 states and 656 transitions. [2023-10-12 17:13:27,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2023-10-12 17:13:27,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2023-10-12 17:13:27,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 656 transitions. [2023-10-12 17:13:27,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:27,965 INFO L219 hiAutomatonCegarLoop]: Abstraction has 169 states and 656 transitions. [2023-10-12 17:13:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 656 transitions. [2023-10-12 17:13:27,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 115. [2023-10-12 17:13:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 115 states have (on average 4.269565217391304) internal successors, (491), 114 states have internal predecessors, (491), 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 17:13:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 491 transitions. [2023-10-12 17:13:27,972 INFO L241 hiAutomatonCegarLoop]: Abstraction has 115 states and 491 transitions. [2023-10-12 17:13:27,972 INFO L430 stractBuchiCegarLoop]: Abstraction has 115 states and 491 transitions. [2023-10-12 17:13:27,973 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:27,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 491 transitions. [2023-10-12 17:13:27,974 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2023-10-12 17:13:27,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:27,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:27,977 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:27,977 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:27,978 INFO L748 eck$LassoCheckResult]: Stem: 971#[$Ultimate##0]don't care [133] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 877#[L121, $Ultimate##0]don't care [136] L121-->$Ultimate##0: 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] 853#[L122, $Ultimate##0, $Ultimate##0]don't care [139] L122-->$Ultimate##0: 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] 863#[$Ultimate##0, $Ultimate##0, $Ultimate##0, L123]don't care [127] $Ultimate##0-->L98: Formula: (and (= v_count_1_17 v_count_7_15) (not v_break_16_21) (= v_i_15_22 0)) InVars {count_7=v_count_7_15, count_1=v_count_1_17} OutVars{count_7=v_count_7_15, count_1=v_count_1_17, i_15=v_i_15_22, break_16=v_break_16_21} AuxVars[] AssignedVars[i_15, break_16] 781#[$Ultimate##0, L123, $Ultimate##0, L98]don't care [2023-10-12 17:13:27,978 INFO L750 eck$LassoCheckResult]: Loop: 781#[$Ultimate##0, L123, $Ultimate##0, L98]don't care [129] L98-->L98: Formula: (let ((.cse0 (not v_break_16_16)) (.cse1 (select v_array_0_13 v_i_15_17)) (.cse2 (select v_array_6_15 v_i_15_17))) (and .cse0 (= v_i_15_16 (+ v_i_15_17 1)) (= v_result_17_17 (ite (< .cse1 .cse2) (- 1) (ite (< .cse2 .cse1) 1 v_result_17_18))) (< v_i_15_17 v_len_2_11) (let ((.cse3 (= .cse1 .cse2))) (or (and v_break_16_15 (or v_break_16_16 (not .cse3))) (and .cse0 .cse3 (not v_break_16_15)))) (< v_i_15_17 v_len_8_13))) InVars {array_6=v_array_6_15, i_15=v_i_15_17, array_0=v_array_0_13, result_17=v_result_17_18, len_2=v_len_2_11, len_8=v_len_8_13, break_16=v_break_16_16} OutVars{array_6=v_array_6_15, i_15=v_i_15_16, array_0=v_array_0_13, result_17=v_result_17_17, len_2=v_len_2_11, len_8=v_len_8_13, break_16=v_break_16_15} AuxVars[] AssignedVars[i_15, result_17, break_16] 781#[$Ultimate##0, L123, $Ultimate##0, L98]don't care [2023-10-12 17:13:27,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash 5020856, now seen corresponding path program 1 times [2023-10-12 17:13:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:27,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651997152] [2023-10-12 17:13:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:27,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:27,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,986 INFO L85 PathProgramCache]: Analyzing trace with hash 160, now seen corresponding path program 1 times [2023-10-12 17:13:27,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:27,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22961627] [2023-10-12 17:13:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:27,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:27,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:27,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash 155646665, now seen corresponding path program 1 times [2023-10-12 17:13:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:27,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554712254] [2023-10-12 17:13:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:28,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:28,020 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:28,156 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:28,156 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:28,157 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:28,157 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:28,157 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:28,157 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,157 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:28,157 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:28,157 INFO L133 ssoRankerPreferences]: Filename of dumped script: word-trans.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:13:28,157 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:28,157 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:28,159 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 17:13:28,160 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 17:13:28,179 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 17:13:28,179 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 17:13:28,184 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 17:13:28,187 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 17:13:28,194 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 17:13:28,196 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 17:13:28,264 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 17:13:28,347 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-10-12 17:13:28,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:28,467 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:28,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,476 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 17:13:28,478 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 17:13:28,502 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 17:13:28,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:28,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:28,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:28,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:28,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:28,511 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:28,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:28,518 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 17:13:28,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,521 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 17:13:28,547 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 17:13:28,548 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 17:13:28,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:28,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:28,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:28,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:28,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:28,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:28,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:28,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:13:28,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,591 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 17:13:28,596 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 17:13:28,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:28,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:28,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:28,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:28,604 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 17:13:28,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:28,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:28,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:28,626 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 17:13:28,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,628 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 17:13:28,630 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 17:13:28,631 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 17:13:28,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:28,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:28,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:28,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:28,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:28,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:28,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:28,652 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 17:13:28,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,655 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 17:13:28,663 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 17:13:28,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:28,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:28,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:28,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:28,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:28,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:28,675 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 17:13:28,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:28,711 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 17:13:28,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,712 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 17:13:28,715 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 17:13:28,716 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 17:13:28,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:28,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:28,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:28,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:28,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:28,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:28,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:28,755 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 17:13:28,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,756 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 17:13:28,758 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 17:13:28,759 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 17:13:28,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:28,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:28,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:28,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:28,769 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:28,769 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:28,779 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:28,783 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:13:28,783 INFO L444 ModelExtractionUtils]: 10 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:13:28,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:28,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:28,785 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 17:13:28,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:28,800 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 17:13:28,822 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:28,822 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:28,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_8, i_15) = 1*len_8 - 1*i_15 Supporting invariants [] [2023-10-12 17:13:28,828 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 17:13:28,829 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:28,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:28,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:28,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:28,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:28,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:28,849 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 17:13:28,850 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 17:13:28,850 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 115 states and 491 transitions. cyclomatic complexity: 416 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:28,886 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 115 states and 491 transitions. cyclomatic complexity: 416. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 231 states and 942 transitions. Complement of second has 4 states. [2023-10-12 17:13:28,887 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 17:13:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:28,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2023-10-12 17:13:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:28,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:13:28,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 36 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:13:28,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:28,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 942 transitions. [2023-10-12 17:13:28,891 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:28,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 0 states and 0 transitions. [2023-10-12 17:13:28,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:13:28,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:13:28,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:13:28,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:28,892 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:28,892 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:28,892 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:28,892 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:13:28,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:13:28,892 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:28,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:13:28,896 INFO L201 PluginConnector]: Adding new model word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:28 BoogieIcfgContainer [2023-10-12 17:13:28,896 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:28,899 INFO L158 Benchmark]: Toolchain (without parser) took 3889.21ms. Allocated memory was 213.9MB in the beginning and 313.5MB in the end (delta: 99.6MB). Free memory was 162.4MB in the beginning and 231.5MB in the end (delta: -69.1MB). Peak memory consumption was 30.7MB. Max. memory is 8.0GB. [2023-10-12 17:13:28,900 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 213.9MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:28,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.29ms. Allocated memory is still 213.9MB. Free memory was 162.4MB in the beginning and 160.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:28,902 INFO L158 Benchmark]: Boogie Preprocessor took 28.89ms. Allocated memory is still 213.9MB. Free memory was 160.7MB in the beginning and 159.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:28,902 INFO L158 Benchmark]: RCFGBuilder took 304.30ms. Allocated memory is still 213.9MB. Free memory was 159.6MB in the beginning and 144.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-10-12 17:13:28,905 INFO L158 Benchmark]: BuchiAutomizer took 3522.87ms. Allocated memory was 213.9MB in the beginning and 313.5MB in the end (delta: 99.6MB). Free memory was 144.8MB in the beginning and 231.5MB in the end (delta: -86.7MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2023-10-12 17:13:28,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17ms. Allocated memory is still 213.9MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.29ms. Allocated memory is still 213.9MB. Free memory was 162.4MB in the beginning and 160.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.89ms. Allocated memory is still 213.9MB. Free memory was 160.7MB in the beginning and 159.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 304.30ms. Allocated memory is still 213.9MB. Free memory was 159.6MB in the beginning and 144.8MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * BuchiAutomizer took 3522.87ms. Allocated memory was 213.9MB in the beginning and 313.5MB in the end (delta: 99.6MB). Free memory was 144.8MB in the beginning and 231.5MB in the end (delta: -86.7MB). Peak memory consumption was 13.9MB. 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 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i_9 + len_2 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_12 + len_8 and consists of 3 locations. One deterministic module has affine ranking function -1 * i_15 + len_8 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 97 StatesRemovedByMinimization, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital99 mio100 ax100 hnf100 lsp206 ukn30 mio100 lsp75 div100 bol110 ite100 ukn100 eq150 hnf100 smp100 dnf771 smp9 tf100 neg100 sie123 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - 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, 29 PlacesBefore, 24 PlacesAfterwards, 25 TransitionsBefore, 20 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, independent: 72, independent conditional: 0, independent unconditional: 72, 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: 72, independent: 72, independent conditional: 0, independent unconditional: 72, 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: 72, independent: 72, independent conditional: 0, independent unconditional: 72, 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: 72, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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 17:13:28,919 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 17:13:29,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...