/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/chromosome-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:23:07,609 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:23:07,680 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 17:23:07,714 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:23:07,715 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:23:07,715 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:23:07,717 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:23:07,718 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:23:07,718 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:23:07,722 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:23:07,722 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:23:07,722 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:23:07,722 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:23:07,723 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:23:07,724 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:23:07,724 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:23:07,724 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:23:07,724 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:23:07,724 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:23:07,725 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:23:07,725 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:23:07,725 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:23:07,725 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:23:07,726 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:23:07,726 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:23:07,726 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:23:07,726 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:23:07,726 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:23:07,727 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:23:07,727 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:23:07,728 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:23:07,728 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:23:07,728 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:23:07,730 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:23:07,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:23:07,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:23:08,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:23:08,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:23:08,014 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:23:08,015 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:23:08,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-symm.wvr.bpl [2023-10-12 17:23:08,017 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-symm.wvr.bpl' [2023-10-12 17:23:08,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:23:08,047 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:23:08,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:23:08,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:23:08,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:23:08,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,086 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:23:08,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:23:08,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:23:08,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:23:08,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:23:08,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:23:08,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:23:08,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:23:08,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:23:08,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/1) ... [2023-10-12 17:23:08,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:08,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:08,148 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 17:23:08,189 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 17:23:08,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:23:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:23:08,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:23:08,206 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:23:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:23:08,207 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:23:08,207 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:23:08,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:23:08,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:23:08,209 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 17:23:08,252 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:23:08,253 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:23:08,347 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:23:08,407 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:23:08,407 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-10-12 17:23:08,409 INFO L201 PluginConnector]: Adding new model chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:23:08 BoogieIcfgContainer [2023-10-12 17:23:08,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:23:08,410 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:23:08,411 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:23:08,415 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:23:08,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:23:08,416 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:23:08" (1/2) ... [2023-10-12 17:23:08,417 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@139fa1b and model type chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:23:08, skipping insertion in model container [2023-10-12 17:23:08,417 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:23:08,418 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:23:08" (2/2) ... [2023-10-12 17:23:08,419 INFO L332 chiAutomizerObserver]: Analyzing ICFG chromosome-symm.wvr.bpl [2023-10-12 17:23:08,465 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:23:08,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 20 transitions, 56 flow [2023-10-12 17:23:08,512 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2023-10-12 17:23:08,512 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:23:08,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 2/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2023-10-12 17:23:08,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 20 transitions, 56 flow [2023-10-12 17:23:08,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 16 transitions, 44 flow [2023-10-12 17:23:08,522 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:23:08,550 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 16 transitions, 44 flow [2023-10-12 17:23:08,553 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 16 transitions, 44 flow [2023-10-12 17:23:08,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 16 transitions, 44 flow [2023-10-12 17:23:08,558 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2023-10-12 17:23:08,558 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:23:08,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 2/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2023-10-12 17:23:08,559 INFO L119 LiptonReduction]: Number of co-enabled transitions 48 [2023-10-12 17:23:08,649 INFO L134 LiptonReduction]: Checked pairs total: 36 [2023-10-12 17:23:08,649 INFO L136 LiptonReduction]: Total number of compositions: 5 [2023-10-12 17:23:08,663 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:23:08,664 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:23:08,664 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:23:08,664 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:23:08,664 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:23:08,664 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:23:08,664 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:23:08,664 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:23:08,665 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 places, 12 transitions, 36 flow [2023-10-12 17:23:08,672 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:08,672 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:23:08,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:23:08,672 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:08,677 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:23:08,678 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 places, 12 transitions, 36 flow [2023-10-12 17:23:08,683 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:08,683 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:23:08,683 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:23:08,683 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:08,688 INFO L748 eck$LassoCheckResult]: Stem: 27#[$Ultimate##0]true [82] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 29#[$Ultimate##0, L71]true [72] $Ultimate##0-->L30: Formula: (and (= v_i_6_21 0) (not v_isNull_1_9) (or (and v_break_4_22 v_isNull_3_7) (and (not v_isNull_3_7) (not v_break_4_22))) (= v_result_5_21 1)) InVars {isNull_1=v_isNull_1_9, isNull_3=v_isNull_3_7} OutVars{i_6=v_i_6_21, break_4=v_break_4_22, isNull_1=v_isNull_1_9, result_5=v_result_5_21, isNull_3=v_isNull_3_7} AuxVars[] AssignedVars[i_6, break_4, result_5] 31#[L30, L71]true [2023-10-12 17:23:08,689 INFO L750 eck$LassoCheckResult]: Loop: 31#[L30, L71]true [73] L30-->L30: Formula: (and (< v_i_6_16 5) (let ((.cse0 (= v_result_5_13 0))) (or (and v_break_4_14 (not .cse0)) (and .cse0 (not v_break_4_14)))) (not v_break_4_15) (= (select v_o_0_9 v_i_6_16) (+ v_result_5_13 (select v_o_2_9 v_i_6_16))) (= (+ v_i_6_16 1) v_i_6_15)) InVars {i_6=v_i_6_16, break_4=v_break_4_15, o_0=v_o_0_9, o_2=v_o_2_9} OutVars{i_6=v_i_6_15, break_4=v_break_4_14, o_0=v_o_0_9, o_2=v_o_2_9, result_5=v_result_5_13} AuxVars[] AssignedVars[i_6, break_4, result_5] 31#[L30, L71]true [2023-10-12 17:23:08,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:08,694 INFO L85 PathProgramCache]: Analyzing trace with hash 3575, now seen corresponding path program 1 times [2023-10-12 17:23:08,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:08,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215000927] [2023-10-12 17:23:08,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:08,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:08,804 INFO L85 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 1 times [2023-10-12 17:23:08,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:08,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395480998] [2023-10-12 17:23:08,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:08,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:08,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:08,832 INFO L85 PathProgramCache]: Analyzing trace with hash 110898, now seen corresponding path program 1 times [2023-10-12 17:23:08,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:08,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369035207] [2023-10-12 17:23:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:08,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:08,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:09,097 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:09,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:09,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:09,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:09,099 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:23:09,099 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:09,099 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:09,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:09,099 INFO L133 ssoRankerPreferences]: Filename of dumped script: chromosome-symm.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:23:09,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:09,099 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:09,114 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 17:23:09,162 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 17:23:09,165 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 17:23:09,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:09,350 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:23:09,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:09,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:09,361 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 17:23:09,365 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 17:23:09,365 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 17:23:09,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:09,375 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-10-12 17:23:09,375 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:23:09,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:09,424 INFO L401 nArgumentSynthesizer]: We have 36 Motzkin's Theorem applications. [2023-10-12 17:23:09,425 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:23:09,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:09,493 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 17:23:09,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:09,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:09,495 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 17:23:09,498 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 17:23:09,499 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 17:23:09,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:09,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:09,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:09,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:09,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:09,511 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:09,529 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:23:09,551 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:23:09,551 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-10-12 17:23:09,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:09,554 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 17:23:09,556 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 17:23:09,593 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:23:09,618 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:23:09,619 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:23:09,619 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_6) = -2*i_6 + 9 Supporting invariants [] [2023-10-12 17:23:09,625 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 17:23:09,628 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:23:09,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:09,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:23:09,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:09,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:23:09,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:09,685 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 17:23:09,727 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 17:23:09,729 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 17:23:09,809 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 165 transitions. [2023-10-12 17:23:09,811 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:23:09,815 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:23:09,822 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 17:23:09,829 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 17:23:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2023-10-12 17:23:09,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:23:09,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:09,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:23:09,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:09,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:23:09,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:09,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 156 transitions, 792 flow [2023-10-12 17:23:09,866 INFO L124 PetriNetUnfolderBase]: 55/103 cut-off events. [2023-10-12 17:23:09,867 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-10-12 17:23:09,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 103 events. 55/103 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 286 event pairs, 2 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 168. Up to 32 conditions per place. [2023-10-12 17:23:09,868 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 29 places, 156 transitions, 792 flow [2023-10-12 17:23:09,875 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 29 places, 156 transitions, 792 flow [2023-10-12 17:23:09,875 INFO L430 stractBuchiCegarLoop]: Abstraction has has 29 places, 156 transitions, 792 flow [2023-10-12 17:23:09,876 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:23:09,876 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 29 places, 156 transitions, 792 flow [2023-10-12 17:23:09,890 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:23:09,890 INFO L124 PetriNetUnfolderBase]: 22/39 cut-off events. [2023-10-12 17:23:09,890 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:23:09,891 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:23:09,892 INFO L748 eck$LassoCheckResult]: Stem: 27#[$Ultimate##0]true [82] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 29#[$Ultimate##0, L71]true [72] $Ultimate##0-->L30: Formula: (and (= v_i_6_21 0) (not v_isNull_1_9) (or (and v_break_4_22 v_isNull_3_7) (and (not v_isNull_3_7) (not v_break_4_22))) (= v_result_5_21 1)) InVars {isNull_1=v_isNull_1_9, isNull_3=v_isNull_3_7} OutVars{i_6=v_i_6_21, break_4=v_break_4_22, isNull_1=v_isNull_1_9, result_5=v_result_5_21, isNull_3=v_isNull_3_7} AuxVars[] AssignedVars[i_6, break_4, result_5] 31#[L30, L71]true [85] L71-->$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] 78#[$Ultimate##0, L30, L72]true [76] $Ultimate##0-->L54: Formula: (and (not v_isNull_3_9) (or (and (not v_break_7_18) (not v_isNull_1_11)) (and v_break_7_18 v_isNull_1_11)) (= v_result_8_19 1) (= v_i_9_21 0)) InVars {isNull_1=v_isNull_1_11, isNull_3=v_isNull_3_9} OutVars{result_8=v_result_8_19, isNull_1=v_isNull_1_11, break_7=v_break_7_18, isNull_3=v_isNull_3_9, i_9=v_i_9_21} AuxVars[] AssignedVars[result_8, break_7, i_9] 80#[L30, L72, L54]true [77] L54-->L54: Formula: (and (let ((.cse0 (= v_result_8_17 0))) (or (and (not .cse0) v_break_7_14) (and (not v_break_7_14) .cse0))) (= (+ v_i_9_18 1) v_i_9_17) (= (select v_o_2_15 v_i_9_18) (+ (select v_o_0_15 v_i_9_18) v_result_8_17)) (not v_break_7_15) (< v_i_9_18 5)) InVars {o_0=v_o_0_15, o_2=v_o_2_15, break_7=v_break_7_15, i_9=v_i_9_18} OutVars{result_8=v_result_8_17, o_0=v_o_0_15, o_2=v_o_2_15, break_7=v_break_7_14, i_9=v_i_9_17} AuxVars[] AssignedVars[result_8, break_7, i_9] 80#[L30, L72, L54]true [2023-10-12 17:23:09,894 INFO L750 eck$LassoCheckResult]: Loop: 80#[L30, L72, L54]true [77] L54-->L54: Formula: (and (let ((.cse0 (= v_result_8_17 0))) (or (and (not .cse0) v_break_7_14) (and (not v_break_7_14) .cse0))) (= (+ v_i_9_18 1) v_i_9_17) (= (select v_o_2_15 v_i_9_18) (+ (select v_o_0_15 v_i_9_18) v_result_8_17)) (not v_break_7_15) (< v_i_9_18 5)) InVars {o_0=v_o_0_15, o_2=v_o_2_15, break_7=v_break_7_15, i_9=v_i_9_18} OutVars{result_8=v_result_8_17, o_0=v_o_0_15, o_2=v_o_2_15, break_7=v_break_7_14, i_9=v_i_9_17} AuxVars[] AssignedVars[result_8, break_7, i_9] 80#[L30, L72, L54]true [77] L54-->L54: Formula: (and (let ((.cse0 (= v_result_8_17 0))) (or (and (not .cse0) v_break_7_14) (and (not v_break_7_14) .cse0))) (= (+ v_i_9_18 1) v_i_9_17) (= (select v_o_2_15 v_i_9_18) (+ (select v_o_0_15 v_i_9_18) v_result_8_17)) (not v_break_7_15) (< v_i_9_18 5)) InVars {o_0=v_o_0_15, o_2=v_o_2_15, break_7=v_break_7_15, i_9=v_i_9_18} OutVars{result_8=v_result_8_17, o_0=v_o_0_15, o_2=v_o_2_15, break_7=v_break_7_14, i_9=v_i_9_17} AuxVars[] AssignedVars[result_8, break_7, i_9] 80#[L30, L72, L54]true [2023-10-12 17:23:09,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:09,899 INFO L85 PathProgramCache]: Analyzing trace with hash 106586943, now seen corresponding path program 1 times [2023-10-12 17:23:09,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:09,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712927333] [2023-10-12 17:23:09,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:09,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:09,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:09,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:09,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash 3425, now seen corresponding path program 1 times [2023-10-12 17:23:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:09,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201699215] [2023-10-12 17:23:09,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:09,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:09,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:09,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:09,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:09,950 INFO L85 PathProgramCache]: Analyzing trace with hash -649160417, now seen corresponding path program 2 times [2023-10-12 17:23:09,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:23:09,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422375548] [2023-10-12 17:23:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:23:09,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:23:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:09,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:23:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:23:09,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:23:10,263 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:23:10,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:23:10,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:23:10,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:23:10,264 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:23:10,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:10,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:23:10,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:23:10,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: chromosome-symm.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:23:10,264 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:23:10,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:23:10,267 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 17:23:10,270 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 17:23:10,272 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 17:23:10,322 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 17:23:10,324 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 17:23:10,329 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 17:23:10,332 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 17:23:10,334 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 17:23:10,337 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 17:23:10,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:23:10,615 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:23:10,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:10,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:10,617 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 17:23:10,620 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 17:23:10,622 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 17:23:10,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:10,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:10,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:10,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:10,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:10,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:10,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:10,654 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 17:23:10,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:10,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:10,657 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 17:23:10,664 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 17:23:10,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:10,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:10,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:10,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:10,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:10,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:10,679 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 17:23:10,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:10,695 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 17:23:10,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:10,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:10,697 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 17:23:10,699 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 17:23:10,701 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 17:23:10,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:10,708 INFO L203 nArgumentSynthesizer]: 3 stem disjuncts [2023-10-12 17:23:10,708 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2023-10-12 17:23:10,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:10,737 INFO L401 nArgumentSynthesizer]: We have 42 Motzkin's Theorem applications. [2023-10-12 17:23:10,737 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2023-10-12 17:23:10,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:23:10,799 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 17:23:10,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:10,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:10,801 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 17:23:10,804 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 17:23:10,805 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 17:23:10,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:23:10,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:23:10,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:23:10,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:23:10,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:23:10,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:23:10,832 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:23:10,844 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:23:10,845 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:23:10,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:23:10,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:23:10,853 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 17:23:10,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:23:10,867 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 17:23:10,880 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:23:10,880 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:23:10,881 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_9) = -1*i_9 + 4 Supporting invariants [] [2023-10-12 17:23:10,887 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 17:23:10,892 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:23:10,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:23:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:10,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:23:10,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:23:10,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:23:10,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:23:10,944 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 17:23:10,945 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 17:23:10,945 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 17:23:11,007 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 165 transitions. [2023-10-12 17:23:11,008 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:23:11,027 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:23:11,031 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 17:23:11,033 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 17:23:11,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2023-10-12 17:23:11,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:23:11,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:11,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:23:11,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:11,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:23:11,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:23:11,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 2032 transitions, 14544 flow [2023-10-12 17:23:11,134 INFO L124 PetriNetUnfolderBase]: 172/314 cut-off events. [2023-10-12 17:23:11,135 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-10-12 17:23:11,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 314 events. 172/314 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1273 event pairs, 2 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 756. Up to 108 conditions per place. [2023-10-12 17:23:11,137 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 41 places, 2032 transitions, 14544 flow [2023-10-12 17:23:11,204 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 41 places, 2032 transitions, 14544 flow [2023-10-12 17:23:11,204 INFO L430 stractBuchiCegarLoop]: Abstraction has has 41 places, 2032 transitions, 14544 flow [2023-10-12 17:23:11,204 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:23:11,204 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 places, 2032 transitions, 14544 flow [2023-10-12 17:23:11,215 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 17:23:11,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:23:11,268 INFO L124 PetriNetUnfolderBase]: 172/314 cut-off events. [2023-10-12 17:23:11,268 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-10-12 17:23:11,268 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:23:11,274 INFO L201 PluginConnector]: Adding new model chromosome-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:23:11 BoogieIcfgContainer [2023-10-12 17:23:11,274 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:23:11,275 INFO L158 Benchmark]: Toolchain (without parser) took 3227.48ms. Allocated memory was 177.2MB in the beginning and 298.8MB in the end (delta: 121.6MB). Free memory was 130.1MB in the beginning and 243.1MB in the end (delta: -113.0MB). Peak memory consumption was 156.5MB. Max. memory is 8.0GB. [2023-10-12 17:23:11,275 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.32ms. Allocated memory is still 177.2MB. Free memory was 131.3MB in the beginning and 131.1MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:23:11,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.74ms. Allocated memory is still 177.2MB. Free memory was 129.9MB in the beginning and 128.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:23:11,276 INFO L158 Benchmark]: Boogie Preprocessor took 21.23ms. Allocated memory is still 177.2MB. Free memory was 128.5MB in the beginning and 127.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:23:11,277 INFO L158 Benchmark]: RCFGBuilder took 298.77ms. Allocated memory is still 177.2MB. Free memory was 127.3MB in the beginning and 115.4MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-10-12 17:23:11,277 INFO L158 Benchmark]: BuchiAutomizer took 2863.70ms. Allocated memory was 177.2MB in the beginning and 298.8MB in the end (delta: 121.6MB). Free memory was 115.2MB in the beginning and 243.1MB in the end (delta: -127.8MB). Peak memory consumption was 141.8MB. Max. memory is 8.0GB. [2023-10-12 17:23:11,279 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.32ms. Allocated memory is still 177.2MB. Free memory was 131.3MB in the beginning and 131.1MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.74ms. Allocated memory is still 177.2MB. Free memory was 129.9MB in the beginning and 128.5MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.23ms. Allocated memory is still 177.2MB. Free memory was 128.5MB in the beginning and 127.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 298.77ms. Allocated memory is still 177.2MB. Free memory was 127.3MB in the beginning and 115.4MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2863.70ms. Allocated memory was 177.2MB in the beginning and 298.8MB in the end (delta: 121.6MB). Free memory was 115.2MB in the beginning and 243.1MB in the end (delta: -127.8MB). Peak memory consumption was 141.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 9 + -2 * i_6 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_9 + 4 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 36 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital72 mio100 ax100 hnf100 lsp80 ukn88 mio100 lsp75 div100 bol123 ite100 ukn100 eq156 hnf96 smp100 dnf346 smp49 tf100 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 97ms VariablesStem: 6 VariablesLoop: 5 DisjunctsStem: 3 DisjunctsLoop: 3 SupportingInvariants: 6 MotzkinApplications: 42 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s - 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: 0.1s, 21 PlacesBefore, 17 PlacesAfterwards, 16 TransitionsBefore, 12 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, independent: 36, independent conditional: 0, independent unconditional: 36, 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: 20, independent: 20, independent conditional: 0, independent unconditional: 20, 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: 20, independent: 20, independent conditional: 0, independent unconditional: 20, 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: 36, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, 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 17:23:11,295 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...