/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_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:24:24,103 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:24:24,174 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 17:24:24,217 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:24:24,218 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:24:24,218 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:24:24,219 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:24:24,220 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:24:24,220 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:24:24,224 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:24:24,224 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:24:24,224 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:24:24,225 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:24:24,226 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:24:24,227 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:24:24,227 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:24:24,227 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:24:24,227 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:24:24,228 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:24:24,228 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:24:24,229 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:24:24,229 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:24:24,230 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:24:24,230 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:24:24,230 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:24:24,230 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:24:24,231 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:24:24,231 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:24:24,231 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:24:24,231 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:24:24,232 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:24:24,232 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:24:24,233 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:24:24,234 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:24:24,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:24:24,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:24:24,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:24:24,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:24:24,518 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:24:24,519 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:24:24,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl [2023-10-12 17:24:24,522 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl' [2023-10-12 17:24:24,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:24:24,565 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:24:24,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:24,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:24:24,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:24:24,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,598 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:24:24,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:24,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:24:24,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:24:24,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:24:24,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:24:24,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:24:24,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:24:24,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:24:24,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/1) ... [2023-10-12 17:24:24,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:24,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:24,667 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 17:24:24,676 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 17:24:24,701 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:24:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:24:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:24:24,701 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:24:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:24:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:24:24,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:24:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:24:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:24:24,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:24:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:24:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:24:24,703 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 17:24:24,753 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:24:24,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:24:24,927 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:24:25,025 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:24:25,025 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-10-12 17:24:25,027 INFO L201 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:24:25 BoogieIcfgContainer [2023-10-12 17:24:25,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:24:25,028 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:24:25,029 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:24:25,032 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:24:25,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:25,032 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:24" (1/2) ... [2023-10-12 17:24:25,034 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f2a3c31 and model type word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:24:25, skipping insertion in model container [2023-10-12 17:24:25,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:25,034 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:24:25" (2/2) ... [2023-10-12 17:24:25,035 INFO L332 chiAutomizerObserver]: Analyzing ICFG word-subst.wvr.bpl [2023-10-12 17:24:25,100 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:24:25,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 31 transitions, 86 flow [2023-10-12 17:24:25,143 INFO L124 PetriNetUnfolderBase]: 6/25 cut-off events. [2023-10-12 17:24:25,143 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:24:25,147 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 17:24:25,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 31 transitions, 86 flow [2023-10-12 17:24:25,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 68 flow [2023-10-12 17:24:25,154 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:24:25,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 25 transitions, 68 flow [2023-10-12 17:24:25,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 25 transitions, 68 flow [2023-10-12 17:24:25,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 68 flow [2023-10-12 17:24:25,176 INFO L124 PetriNetUnfolderBase]: 6/25 cut-off events. [2023-10-12 17:24:25,177 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:24:25,177 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 17:24:25,178 INFO L119 LiptonReduction]: Number of co-enabled transitions 210 [2023-10-12 17:24:25,437 INFO L134 LiptonReduction]: Checked pairs total: 72 [2023-10-12 17:24:25,437 INFO L136 LiptonReduction]: Total number of compositions: 9 [2023-10-12 17:24:25,448 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:24:25,448 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:24:25,449 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:24:25,449 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:24:25,449 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:24:25,449 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:24:25,449 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:24:25,449 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:24:25,450 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 places, 20 transitions, 58 flow [2023-10-12 17:24:25,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:25,453 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:24:25,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:25,454 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:25,456 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:24:25,456 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 places, 20 transitions, 58 flow [2023-10-12 17:24:25,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:25,457 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:24:25,457 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:25,457 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:25,461 INFO L748 eck$LassoCheckResult]: Stem: 36#[$Ultimate##0]true [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]true [117] $Ultimate##0-->L38: Formula: (and (not v_break_10_13) (= v_count_1_11 v_count_4_15) (= v_i_9_16 0)) InVars {count_4=v_count_4_15, count_1=v_count_1_11} OutVars{break_10=v_break_10_13, count_1=v_count_1_11, count_4=v_count_4_15, i_9=v_i_9_16} AuxVars[] AssignedVars[break_10, i_9] 40#[L121, L38]true [2023-10-12 17:24:25,462 INFO L750 eck$LassoCheckResult]: Loop: 40#[L121, L38]true [120] L38-->L38: Formula: (let ((.cse0 (not v_break_10_18)) (.cse2 (select v_get_3_15 v_i_9_21)) (.cse3 (select v_get_0_15 v_i_9_21))) (and .cse0 (let ((.cse1 (= .cse2 .cse3))) (or (and (or (not .cse1) v_break_10_18) v_break_10_17) (and (not v_break_10_17) .cse0 .cse1))) (< v_i_9_21 v_len_2_17) (= (ite (< .cse3 .cse2) (- 1) (ite (< .cse2 .cse3) 1 v_result_11_18)) v_result_11_17) (= (+ v_i_9_21 1) v_i_9_20) (< v_i_9_21 v_len_5_15))) InVars {break_10=v_break_10_18, result_11=v_result_11_18, get_0=v_get_0_15, len_2=v_len_2_17, len_5=v_len_5_15, i_9=v_i_9_21, get_3=v_get_3_15} OutVars{break_10=v_break_10_17, result_11=v_result_11_17, get_0=v_get_0_15, len_2=v_len_2_17, len_5=v_len_5_15, i_9=v_i_9_20, get_3=v_get_3_15} AuxVars[] AssignedVars[break_10, result_11, i_9] 40#[L121, L38]true [2023-10-12 17:24:25,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:25,466 INFO L85 PathProgramCache]: Analyzing trace with hash 5201, now seen corresponding path program 1 times [2023-10-12 17:24:25,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:25,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726552278] [2023-10-12 17:24:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:25,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:25,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:25,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:25,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:25,547 INFO L85 PathProgramCache]: Analyzing trace with hash 151, now seen corresponding path program 1 times [2023-10-12 17:24:25,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:25,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040072514] [2023-10-12 17:24:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:25,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:25,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:25,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:25,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash 161351, now seen corresponding path program 1 times [2023-10-12 17:24:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:25,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237435999] [2023-10-12 17:24:25,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:25,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:25,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:25,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:25,864 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:24:25,865 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:24:25,865 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:24:25,865 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:24:25,865 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:24:25,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:25,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:24:25,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:24:25,866 INFO L133 ssoRankerPreferences]: Filename of dumped script: word-subst.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:24:25,866 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:24:25,866 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:24:25,886 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 17:24:25,896 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 17:24:25,899 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 17:24:26,218 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:24:26,221 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:24:26,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:26,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:26,223 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 17:24:26,227 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 17:24:26,228 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 17:24:26,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:26,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:26,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:26,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:26,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:26,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:26,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:26,269 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 17:24:26,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:26,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:26,270 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 17:24:26,273 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 17:24:26,274 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 17:24:26,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:26,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:26,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:26,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:26,285 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:26,285 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:26,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:26,306 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 17:24:26,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:26,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:26,307 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 17:24:26,316 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 17:24:26,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:26,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:26,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:26,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:26,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:26,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:26,334 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 17:24:26,349 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:24:26,356 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:24:26,357 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:24:26,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:26,360 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 17:24:26,363 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 17:24:26,367 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:24:26,384 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:24:26,385 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:24:26,385 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_9, len_5) = -1*i_9 + 1*len_5 Supporting invariants [] [2023-10-12 17:24:26,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-10-12 17:24:26,396 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:24:26,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:26,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:24:26,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:26,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:24:26,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:26,458 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 17:24:26,497 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 17:24:26,499 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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 17:24:26,608 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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 6 states and 270 transitions. [2023-10-12 17:24:26,610 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:24:26,613 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:24:26,616 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 17:24:26,643 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 17:24:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2023-10-12 17:24:26,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:24:26,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:26,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:24:26,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:26,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:24:26,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:26,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 268 transitions, 1324 flow [2023-10-12 17:24:26,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:26,766 INFO L124 PetriNetUnfolderBase]: 581/796 cut-off events. [2023-10-12 17:24:26,766 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2023-10-12 17:24:26,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 796 events. 581/796 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2627 event pairs, 13 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 1442. Up to 203 conditions per place. [2023-10-12 17:24:26,770 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 36 places, 268 transitions, 1324 flow [2023-10-12 17:24:26,776 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 36 places, 268 transitions, 1324 flow [2023-10-12 17:24:26,776 INFO L430 stractBuchiCegarLoop]: Abstraction has has 36 places, 268 transitions, 1324 flow [2023-10-12 17:24:26,776 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:24:26,777 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 36 places, 268 transitions, 1324 flow [2023-10-12 17:24:26,787 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:26,787 INFO L124 PetriNetUnfolderBase]: 57/84 cut-off events. [2023-10-12 17:24:26,787 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-10-12 17:24:26,787 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:26,788 INFO L748 eck$LassoCheckResult]: Stem: 36#[$Ultimate##0]true [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]true [117] $Ultimate##0-->L38: Formula: (and (not v_break_10_13) (= v_count_1_11 v_count_4_15) (= v_i_9_16 0)) InVars {count_4=v_count_4_15, count_1=v_count_1_11} OutVars{break_10=v_break_10_13, count_1=v_count_1_11, count_4=v_count_4_15, i_9=v_i_9_16} AuxVars[] AssignedVars[break_10, i_9] 40#[L121, L38]true [136] L121-->$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] 87#[$Ultimate##0, L38, L122]true [122] $Ultimate##0-->L68: Formula: (and (= v_count_1_15 v_count_7_13) (not v_break_13_21) (= v_i_12_22 0)) InVars {count_7=v_count_7_13, count_1=v_count_1_15} OutVars{i_12=v_i_12_22, count_7=v_count_7_13, count_1=v_count_1_15, break_13=v_break_13_21} AuxVars[] AssignedVars[i_12, break_13] 89#[L68, L38, L122]true [125] L68-->L68: Formula: (let ((.cse0 (not v_break_13_18)) (.cse2 (select v_get_6_11 v_i_12_19)) (.cse1 (select v_get_0_11 v_i_12_19))) (and (= (+ v_i_12_19 1) v_i_12_18) .cse0 (< v_i_12_19 v_len_8_11) (< v_i_12_19 v_len_2_13) (= (ite (< .cse1 .cse2) (- 1) (ite (< .cse2 .cse1) 1 v_result_14_16)) v_result_14_15) (let ((.cse3 (= .cse2 .cse1))) (or (and (or (not .cse3) v_break_13_18) v_break_13_17) (and .cse3 .cse0 (not v_break_13_17)))))) InVars {get_0=v_get_0_11, result_14=v_result_14_16, len_2=v_len_2_13, i_12=v_i_12_19, break_13=v_break_13_18, get_6=v_get_6_11, len_8=v_len_8_11} OutVars{get_0=v_get_0_11, result_14=v_result_14_15, len_2=v_len_2_13, i_12=v_i_12_18, break_13=v_break_13_17, get_6=v_get_6_11, len_8=v_len_8_11} AuxVars[] AssignedVars[result_14, i_12, break_13] 89#[L68, L38, L122]true [2023-10-12 17:24:26,788 INFO L750 eck$LassoCheckResult]: Loop: 89#[L68, L38, L122]true [125] L68-->L68: Formula: (let ((.cse0 (not v_break_13_18)) (.cse2 (select v_get_6_11 v_i_12_19)) (.cse1 (select v_get_0_11 v_i_12_19))) (and (= (+ v_i_12_19 1) v_i_12_18) .cse0 (< v_i_12_19 v_len_8_11) (< v_i_12_19 v_len_2_13) (= (ite (< .cse1 .cse2) (- 1) (ite (< .cse2 .cse1) 1 v_result_14_16)) v_result_14_15) (let ((.cse3 (= .cse2 .cse1))) (or (and (or (not .cse3) v_break_13_18) v_break_13_17) (and .cse3 .cse0 (not v_break_13_17)))))) InVars {get_0=v_get_0_11, result_14=v_result_14_16, len_2=v_len_2_13, i_12=v_i_12_19, break_13=v_break_13_18, get_6=v_get_6_11, len_8=v_len_8_11} OutVars{get_0=v_get_0_11, result_14=v_result_14_15, len_2=v_len_2_13, i_12=v_i_12_18, break_13=v_break_13_17, get_6=v_get_6_11, len_8=v_len_8_11} AuxVars[] AssignedVars[result_14, i_12, break_13] 89#[L68, L38, L122]true [125] L68-->L68: Formula: (let ((.cse0 (not v_break_13_18)) (.cse2 (select v_get_6_11 v_i_12_19)) (.cse1 (select v_get_0_11 v_i_12_19))) (and (= (+ v_i_12_19 1) v_i_12_18) .cse0 (< v_i_12_19 v_len_8_11) (< v_i_12_19 v_len_2_13) (= (ite (< .cse1 .cse2) (- 1) (ite (< .cse2 .cse1) 1 v_result_14_16)) v_result_14_15) (let ((.cse3 (= .cse2 .cse1))) (or (and (or (not .cse3) v_break_13_18) v_break_13_17) (and .cse3 .cse0 (not v_break_13_17)))))) InVars {get_0=v_get_0_11, result_14=v_result_14_16, len_2=v_len_2_13, i_12=v_i_12_19, break_13=v_break_13_18, get_6=v_get_6_11, len_8=v_len_8_11} OutVars{get_0=v_get_0_11, result_14=v_result_14_15, len_2=v_len_2_13, i_12=v_i_12_18, break_13=v_break_13_17, get_6=v_get_6_11, len_8=v_len_8_11} AuxVars[] AssignedVars[result_14, i_12, break_13] 89#[L68, L38, L122]true [2023-10-12 17:24:26,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash 155077594, now seen corresponding path program 1 times [2023-10-12 17:24:26,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:26,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067344391] [2023-10-12 17:24:26,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:26,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:26,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:26,832 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:26,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:26,832 INFO L85 PathProgramCache]: Analyzing trace with hash 4961, now seen corresponding path program 1 times [2023-10-12 17:24:26,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:26,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693350482] [2023-10-12 17:24:26,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:26,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:26,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:26,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:26,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1294283526, now seen corresponding path program 2 times [2023-10-12 17:24:26,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:26,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047307402] [2023-10-12 17:24:26,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:26,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:26,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:26,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:27,355 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:24:27,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:24:27,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:24:27,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:24:27,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:24:27,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:27,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:24:27,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:24:27,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: word-subst.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:24:27,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:24:27,356 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:24:27,359 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 17:24:27,362 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 17:24:27,366 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 17:24:27,368 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 17:24:27,370 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 17:24:27,373 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 17:24:27,547 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 17:24:27,655 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-10-12 17:24:27,890 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:24:27,890 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:24:27,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:27,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:27,892 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 17:24:27,894 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 17:24:27,896 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 17:24:27,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:27,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:27,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:27,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:27,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:27,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:27,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:27,928 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 17:24:27,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:27,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:27,930 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 17:24:27,933 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 17:24:27,934 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 17:24:27,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:27,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:27,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:27,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:27,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:27,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:27,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:27,988 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 17:24:27,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:27,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:27,990 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 17:24:27,993 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 17:24:28,029 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 17:24:28,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:28,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:28,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:28,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:28,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:28,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:28,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:28,061 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 17:24:28,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:28,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:28,062 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 17:24:28,065 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 17:24:28,066 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 17:24:28,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:28,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:28,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:28,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:28,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:28,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:28,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:28,099 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 17:24:28,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:28,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:28,101 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 17:24:28,103 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 17:24:28,105 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 17:24:28,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:28,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:28,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:28,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:28,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:28,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:28,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:28,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:28,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:28,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:28,137 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 17:24:28,143 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 17:24:28,144 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 17:24:28,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:28,152 INFO L203 nArgumentSynthesizer]: 3 stem disjuncts [2023-10-12 17:24:28,152 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:24:28,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:28,178 INFO L401 nArgumentSynthesizer]: We have 42 Motzkin's Theorem applications. [2023-10-12 17:24:28,178 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:24:28,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:28,253 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 17:24:28,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:28,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:28,257 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 17:24:28,260 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 17:24:28,261 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 17:24:28,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:28,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:28,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:28,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:28,274 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:28,274 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:28,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:24:28,306 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:24:28,307 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:24:28,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:28,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:28,309 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 17:24:28,312 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 17:24:28,313 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:24:28,338 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:24:28,338 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:24:28,338 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 17:24:28,349 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 17:24:28,352 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:24:28,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:28,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:24:28,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:28,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:24:28,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:24:28,421 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:24:28,421 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:24:28,535 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 270 transitions. [2023-10-12 17:24:28,536 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:24:28,557 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:24:28,558 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 17:24:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:24:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2023-10-12 17:24:28,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:24:28,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:28,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:24:28,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:28,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:24:28,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:28,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 3600 transitions, 25128 flow [2023-10-12 17:24:28,979 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 17:24:28,995 INFO L124 PetriNetUnfolderBase]: 2015/2746 cut-off events. [2023-10-12 17:24:28,996 INFO L125 PetriNetUnfolderBase]: For 543/543 co-relation queries the response was YES. [2023-10-12 17:24:29,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8788 conditions, 2746 events. 2015/2746 cut-off events. For 543/543 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 11194 event pairs, 20 based on Foata normal form. 0/1398 useless extension candidates. Maximal degree in co-relation 7733. Up to 743 conditions per place. [2023-10-12 17:24:29,003 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 48 places, 3600 transitions, 25128 flow [2023-10-12 17:24:29,045 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 48 places, 3600 transitions, 25128 flow [2023-10-12 17:24:29,045 INFO L430 stractBuchiCegarLoop]: Abstraction has has 48 places, 3600 transitions, 25128 flow [2023-10-12 17:24:29,045 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:24:29,045 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 48 places, 3600 transitions, 25128 flow [2023-10-12 17:24:29,066 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:29,067 INFO L124 PetriNetUnfolderBase]: 76/115 cut-off events. [2023-10-12 17:24:29,067 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-10-12 17:24:29,067 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:29,068 INFO L748 eck$LassoCheckResult]: Stem: 36#[$Ultimate##0]true [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, $Ultimate##0]true [136] L121-->$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] 149#[$Ultimate##0, $Ultimate##0, L122]true [139] L122-->$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] 151#[$Ultimate##0, $Ultimate##0, L123, $Ultimate##0]true [127] $Ultimate##0-->L98: Formula: (and (= v_count_7_15 v_count_4_17) (not v_break_16_21) (= v_i_15_22 0)) InVars {count_7=v_count_7_15, count_4=v_count_4_17} OutVars{count_7=v_count_7_15, i_15=v_i_15_22, count_4=v_count_4_17, break_16=v_break_16_21} AuxVars[] AssignedVars[i_15, break_16] 153#[L98, $Ultimate##0, $Ultimate##0, L123]true [2023-10-12 17:24:29,068 INFO L750 eck$LassoCheckResult]: Loop: 153#[L98, $Ultimate##0, $Ultimate##0, L123]true [129] L98-->L98: Formula: (let ((.cse0 (not v_break_16_16)) (.cse2 (select v_get_6_15 v_i_15_17)) (.cse1 (select v_get_3_13 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))) (let ((.cse3 (= .cse2 .cse1))) (or (and (or v_break_16_16 (not .cse3)) v_break_16_15) (and .cse0 (not v_break_16_15) .cse3))) (< v_i_15_17 v_len_8_13) (< v_i_15_17 v_len_5_11))) InVars {i_15=v_i_15_17, result_17=v_result_17_18, len_5=v_len_5_11, get_6=v_get_6_15, len_8=v_len_8_13, break_16=v_break_16_16, get_3=v_get_3_13} OutVars{i_15=v_i_15_16, result_17=v_result_17_17, len_5=v_len_5_11, get_6=v_get_6_15, len_8=v_len_8_13, break_16=v_break_16_15, get_3=v_get_3_13} AuxVars[] AssignedVars[i_15, result_17, break_16] 153#[L98, $Ultimate##0, $Ultimate##0, L123]true [129] L98-->L98: Formula: (let ((.cse0 (not v_break_16_16)) (.cse2 (select v_get_6_15 v_i_15_17)) (.cse1 (select v_get_3_13 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))) (let ((.cse3 (= .cse2 .cse1))) (or (and (or v_break_16_16 (not .cse3)) v_break_16_15) (and .cse0 (not v_break_16_15) .cse3))) (< v_i_15_17 v_len_8_13) (< v_i_15_17 v_len_5_11))) InVars {i_15=v_i_15_17, result_17=v_result_17_18, len_5=v_len_5_11, get_6=v_get_6_15, len_8=v_len_8_13, break_16=v_break_16_16, get_3=v_get_3_13} OutVars{i_15=v_i_15_16, result_17=v_result_17_17, len_5=v_len_5_11, get_6=v_get_6_15, len_8=v_len_8_13, break_16=v_break_16_15, get_3=v_get_3_13} AuxVars[] AssignedVars[i_15, result_17, break_16] 153#[L98, $Ultimate##0, $Ultimate##0, L123]true [2023-10-12 17:24:29,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:29,069 INFO L85 PathProgramCache]: Analyzing trace with hash 5020856, now seen corresponding path program 1 times [2023-10-12 17:24:29,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:29,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112879793] [2023-10-12 17:24:29,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:29,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:29,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:29,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:29,093 INFO L85 PathProgramCache]: Analyzing trace with hash 5089, now seen corresponding path program 1 times [2023-10-12 17:24:29,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:29,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669915170] [2023-10-12 17:24:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:29,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:29,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:29,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:29,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash 530079448, now seen corresponding path program 1 times [2023-10-12 17:24:29,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:29,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498029645] [2023-10-12 17:24:29,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:29,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:29,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:29,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:29,378 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:24:29,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:24:29,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:24:29,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:24:29,379 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:24:29,379 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,379 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:24:29,379 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:24:29,379 INFO L133 ssoRankerPreferences]: Filename of dumped script: word-subst.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:24:29,379 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:24:29,379 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:24:29,383 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 17:24:29,386 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 17:24:29,389 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 17:24:29,391 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 17:24:29,394 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 17:24:29,396 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 17:24:29,490 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 17:24:29,495 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 17:24:29,713 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:24:29,713 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:24:29,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:29,721 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 17:24:29,724 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 17:24:29,726 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 17:24:29,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:29,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:29,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:29,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:29,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:29,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:29,749 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:29,755 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 17:24:29,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:29,756 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 17:24:29,762 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 17:24:29,763 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 17:24:29,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:29,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:29,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:29,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:29,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:29,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:29,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:29,796 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 17:24:29,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:29,797 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 17:24:29,809 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 17:24:29,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:29,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:29,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:29,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:29,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:29,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:29,823 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 17:24:29,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:29,828 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 17:24:29,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:29,830 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:24:29,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:24:29,833 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 17:24:29,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:29,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:29,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:29,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:29,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:29,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:29,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:29,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:29,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:29,845 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:24:29,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:24:29,848 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 17:24:29,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:29,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:29,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:29,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:29,855 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:29,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:29,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:29,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:29,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:29,896 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:24:29,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:24:29,901 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 17:24:29,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:29,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:29,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:29,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:29,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:29,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:29,929 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:24:29,938 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:24:29,938 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:24:29,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:29,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:29,940 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:24:29,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:24:29,978 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:24:29,987 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:24:29,988 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:24:29,988 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_5, i_15) = 1*len_5 - 1*i_15 Supporting invariants [] [2023-10-12 17:24:29,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:29,995 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:24:30,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:30,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:24:30,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:24:30,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:24:30,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:24:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:24:30,047 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:24:30,047 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:24:30,143 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 270 transitions. [2023-10-12 17:24:30,144 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:24:30,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:30,516 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:24:30,517 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 17:24:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:24:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2023-10-12 17:24:30,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:24:30,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:30,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:24:30,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:30,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 158 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:24:30,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:24:30,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48432 transitions, 436848 flow [2023-10-12 17:24:41,558 INFO L124 PetriNetUnfolderBase]: 5374/7497 cut-off events. [2023-10-12 17:24:41,558 INFO L125 PetriNetUnfolderBase]: For 1782/1782 co-relation queries the response was YES. [2023-10-12 17:24:41,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31283 conditions, 7497 events. 5374/7497 cut-off events. For 1782/1782 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 38138 event pairs, 42 based on Foata normal form. 0/3788 useless extension candidates. Maximal degree in co-relation 26465. Up to 2060 conditions per place. [2023-10-12 17:24:41,563 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 60 places, 48432 transitions, 436848 flow [2023-10-12 17:24:41,983 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 60 places, 48432 transitions, 436848 flow [2023-10-12 17:24:41,983 INFO L430 stractBuchiCegarLoop]: Abstraction has has 60 places, 48432 transitions, 436848 flow [2023-10-12 17:24:41,984 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:24:41,984 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 places, 48432 transitions, 436848 flow [2023-10-12 17:24:54,691 INFO L124 PetriNetUnfolderBase]: 5374/7497 cut-off events. [2023-10-12 17:24:54,691 INFO L125 PetriNetUnfolderBase]: For 1782/1782 co-relation queries the response was YES. [2023-10-12 17:24:54,691 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:24:54,697 INFO L201 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:24:54 BoogieIcfgContainer [2023-10-12 17:24:54,697 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:24:54,698 INFO L158 Benchmark]: Toolchain (without parser) took 30132.76ms. Allocated memory was 198.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 151.8MB in the beginning and 709.7MB in the end (delta: -557.9MB). Peak memory consumption was 748.3MB. Max. memory is 8.0GB. [2023-10-12 17:24:54,698 INFO L158 Benchmark]: Boogie PL CUP Parser took 1.76ms. Allocated memory is still 198.2MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:24:54,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.61ms. Allocated memory is still 198.2MB. Free memory was 151.6MB in the beginning and 150.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:24:54,698 INFO L158 Benchmark]: Boogie Preprocessor took 38.67ms. Allocated memory is still 198.2MB. Free memory was 150.1MB in the beginning and 148.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:24:54,699 INFO L158 Benchmark]: RCFGBuilder took 387.97ms. Allocated memory is still 198.2MB. Free memory was 148.9MB in the beginning and 170.2MB in the end (delta: -21.3MB). Peak memory consumption was 19.0MB. Max. memory is 8.0GB. [2023-10-12 17:24:54,699 INFO L158 Benchmark]: BuchiAutomizer took 29668.48ms. Allocated memory was 198.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 170.2MB in the beginning and 709.7MB in the end (delta: -539.5MB). Peak memory consumption was 767.0MB. Max. memory is 8.0GB. [2023-10-12 17:24:54,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 1.76ms. Allocated memory is still 198.2MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.61ms. Allocated memory is still 198.2MB. Free memory was 151.6MB in the beginning and 150.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.67ms. Allocated memory is still 198.2MB. Free memory was 150.1MB in the beginning and 148.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 387.97ms. Allocated memory is still 198.2MB. Free memory was 148.9MB in the beginning and 170.2MB in the end (delta: -21.3MB). Peak memory consumption was 19.0MB. Max. memory is 8.0GB. * BuchiAutomizer took 29668.48ms. Allocated memory was 198.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 170.2MB in the beginning and 709.7MB in the end (delta: -539.5MB). Peak memory consumption was 767.0MB. 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_5 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_12 + len_8 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_15 + len_5 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 29.5s and 4 iterations. TraceHistogramMax:0. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 216 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 272 IncrementalHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 72 mSDtfsCounter, 272 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital148 mio100 ax100 hnf100 lsp213 ukn25 mio100 lsp72 div100 bol110 ite100 ukn100 eq150 hnf100 smp100 dnf789 smp9 tf100 neg100 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 110ms VariablesStem: 5 VariablesLoop: 6 DisjunctsStem: 3 DisjunctsLoop: 3 SupportingInvariants: 6 MotzkinApplications: 42 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: 0.3s, 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 17:24:54,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...