/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/POPL2023/motivating-slowitp.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:19:42,726 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:19:42,768 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 17:19:42,796 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:19:42,796 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:19:42,797 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:19:42,797 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:19:42,798 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:19:42,798 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:19:42,798 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:19:42,798 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:19:42,799 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:19:42,799 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:19:42,799 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:19:42,799 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:19:42,800 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:19:42,800 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:19:42,800 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:19:42,800 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:19:42,801 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:19:42,801 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:19:42,804 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:19:42,805 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:19:42,805 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:19:42,805 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:19:42,805 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:19:42,805 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:19:42,806 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:19:42,806 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:19:42,806 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:19:42,806 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:19:42,806 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:19:42,810 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:19:42,811 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:19:42,812 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:19:43,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:19:43,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:19:43,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:19:43,043 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:19:43,044 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:19:43,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating-slowitp.bpl [2023-10-12 17:19:43,045 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating-slowitp.bpl' [2023-10-12 17:19:43,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:19:43,070 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:19:43,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:19:43,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:19:43,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:19:43,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,093 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:19:43,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:19:43,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:19:43,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:19:43,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:19:43,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:19:43,117 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:19:43,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:19:43,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:19:43,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/1) ... [2023-10-12 17:19:43,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:19:43,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:19:43,142 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 17:19:43,160 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 17:19:43,189 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:19:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:19:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:19:43,189 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:19:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:19:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:19:43,190 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:19:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:19:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:19:43,190 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:19:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:19:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:19:43,191 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 17:19:43,230 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:19:43,232 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:19:43,344 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:19:43,386 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:19:43,386 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:19:43,388 INFO L201 PluginConnector]: Adding new model motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:19:43 BoogieIcfgContainer [2023-10-12 17:19:43,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:19:43,389 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:19:43,389 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:19:43,394 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:19:43,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:19:43,395 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:19:43" (1/2) ... [2023-10-12 17:19:43,396 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b815217 and model type motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:19:43, skipping insertion in model container [2023-10-12 17:19:43,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:19:43,396 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:19:43" (2/2) ... [2023-10-12 17:19:43,397 INFO L332 chiAutomizerObserver]: Analyzing ICFG motivating-slowitp.bpl [2023-10-12 17:19:43,451 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:19:43,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:19:43,508 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:19:43,508 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:19:43,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-10-12 17:19:43,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:19:43,515 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2023-10-12 17:19:43,517 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:19:43,537 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:19:43,539 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:19:43,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 70 flow [2023-10-12 17:19:43,558 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:19:43,559 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:19:43,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-10-12 17:19:43,560 INFO L119 LiptonReduction]: Number of co-enabled transitions 234 [2023-10-12 17:19:43,886 INFO L134 LiptonReduction]: Checked pairs total: 137 [2023-10-12 17:19:43,887 INFO L136 LiptonReduction]: Total number of compositions: 8 [2023-10-12 17:19:43,896 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:19:43,896 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:19:43,897 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:19:43,897 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:19:43,897 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:19:43,897 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:19:43,897 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:19:43,897 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:19:43,897 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 places, 18 transitions, 54 flow [2023-10-12 17:19:43,900 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:19:43,900 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:19:43,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:19:43,900 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:19:43,902 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:19:43,903 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 places, 18 transitions, 54 flow [2023-10-12 17:19:43,903 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:19:43,903 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:19:43,904 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:19:43,904 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:19:43,907 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [85] $Ultimate##0-->L18: Formula: (and (< v_ULTIMATE.start_m_3 v_N_7) (<= 0 v_ULTIMATE.start_m_3)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} AuxVars[] AssignedVars[] 42#[L18]true [106] L18-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_12} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 44#[L18-1, $Ultimate##0]true [88] $Ultimate##0-->L36-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 46#[L18-1, L36-1]true [2023-10-12 17:19:43,907 INFO L750 eck$LassoCheckResult]: Loop: 46#[L18-1, L36-1]true [118] L36-1-->L36-1: Formula: (and (= v_thread1Thread1of1ForFork0_i_15 (+ v_thread1Thread1of1ForFork0_i_16 1)) (= v_A_17 (store v_A_18 v_thread1Thread1of1ForFork0_i_16 (let ((.cse0 (select v_A_18 v_thread1Thread1of1ForFork0_i_16))) (ite (< .cse0 0) 0 .cse0)))) (< v_thread1Thread1of1ForFork0_i_16 v_N_10)) InVars {A=v_A_18, N=v_N_10, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_16} OutVars{A=v_A_17, N=v_N_10, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_15} AuxVars[] AssignedVars[A, thread1Thread1of1ForFork0_i] 46#[L18-1, L36-1]true [2023-10-12 17:19:43,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:19:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash 114850, now seen corresponding path program 1 times [2023-10-12 17:19:43,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:19:43,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775540181] [2023-10-12 17:19:43,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:19:43,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:19:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:43,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:19:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:19:44,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:19:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash 149, now seen corresponding path program 1 times [2023-10-12 17:19:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:19:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057034997] [2023-10-12 17:19:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:19:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:19:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:19:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:19:44,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:19:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash 3560468, now seen corresponding path program 1 times [2023-10-12 17:19:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:19:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710105009] [2023-10-12 17:19:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:19:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:19:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:19:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:19:44,160 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:19:44,161 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:19:44,161 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:19:44,161 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:19:44,161 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:19:44,161 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:19:44,162 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:19:44,162 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:19:44,162 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:19:44,162 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:19:44,162 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:19:44,173 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 17:19:44,201 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 17:19:44,237 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:19:44,239 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:19:44,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:19:44,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:19:44,243 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 17:19:44,244 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 17:19:44,246 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 17:19:44,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:19:44,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:19:44,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:19:44,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:19:44,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:19:44,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:19:44,277 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:19:44,286 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:19:44,286 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:19:44,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:19:44,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:19:44,303 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 17:19:44,304 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 17:19:44,305 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:19:44,327 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:19:44,328 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:19:44,328 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_i, N) = -1*thread1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2023-10-12 17:19:44,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:19:44,336 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:19:44,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:19:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:19:44,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:19:44,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:19:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:19:44,385 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:19:44,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:19:44,386 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 17:19:44,420 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 17:19:44,422 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:19:44,523 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5 states and 234 transitions. [2023-10-12 17:19:44,524 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:19:44,528 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:19:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:19:44,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:19:44,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2023-10-12 17:19:44,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:19:44,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:19:44,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:19:44,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:19:44,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:19:44,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:19:44,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 204 transitions, 1020 flow [2023-10-12 17:19:44,609 INFO L124 PetriNetUnfolderBase]: 369/535 cut-off events. [2023-10-12 17:19:44,609 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-10-12 17:19:44,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 535 events. 369/535 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1682 event pairs, 27 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 928. Up to 168 conditions per place. [2023-10-12 17:19:44,611 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 35 places, 204 transitions, 1020 flow [2023-10-12 17:19:44,614 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 35 places, 204 transitions, 1020 flow [2023-10-12 17:19:44,614 INFO L430 stractBuchiCegarLoop]: Abstraction has has 35 places, 204 transitions, 1020 flow [2023-10-12 17:19:44,615 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:19:44,615 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 35 places, 204 transitions, 1020 flow [2023-10-12 17:19:44,631 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:19:44,631 INFO L124 PetriNetUnfolderBase]: 44/67 cut-off events. [2023-10-12 17:19:44,631 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-10-12 17:19:44,632 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:19:44,633 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [85] $Ultimate##0-->L18: Formula: (and (< v_ULTIMATE.start_m_3 v_N_7) (<= 0 v_ULTIMATE.start_m_3)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} AuxVars[] AssignedVars[] 42#[L18]true [106] L18-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_12} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 44#[L18-1, $Ultimate##0]true [109] L18-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_12, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_8, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_cnt, thread2Thread1of1ForFork1_thidvar1] 95#[$Ultimate##0, $Ultimate##0, L19]true [88] $Ultimate##0-->L36-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 97#[$Ultimate##0, L36-1, L19]true [121] $Ultimate##0-->L52-1: Formula: (and (= v_thread2Thread1of1ForFork1_cnt_11 0) (= v_thread2Thread1of1ForFork1_j_13 0)) InVars {} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_13, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_11} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_cnt] 99#[L36-1, L52-1, L19]true [123] L52-1-->L52-1: Formula: (and (let ((.cse0 (select v_B_19 v_thread2Thread1of1ForFork1_j_18))) (or (and (< 0 .cse0) (= v_thread2Thread1of1ForFork1_cnt_13 (+ v_thread2_cnt_28 1))) (and (= v_thread2_cnt_28 v_thread2Thread1of1ForFork1_cnt_13) (<= .cse0 0)))) (= v_thread2Thread1of1ForFork1_j_17 (+ v_thread2Thread1of1ForFork1_j_18 1)) (let ((.cse1 (select v_A_21 v_thread2Thread1of1ForFork1_j_18))) (or (and (< 0 .cse1) (= (+ v_thread2Thread1of1ForFork1_cnt_14 1) v_thread2_cnt_28)) (and (<= .cse1 0) (= v_thread2_cnt_28 v_thread2Thread1of1ForFork1_cnt_14)))) (< v_thread2Thread1of1ForFork1_j_18 v_N_18)) InVars {A=v_A_21, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_18, N=v_N_18, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_14, B=v_B_19} OutVars{A=v_A_21, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_17, N=v_N_18, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_13, B=v_B_19} AuxVars[v_thread2_cnt_28] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_cnt] 99#[L36-1, L52-1, L19]true [2023-10-12 17:19:44,633 INFO L750 eck$LassoCheckResult]: Loop: 99#[L36-1, L52-1, L19]true [123] L52-1-->L52-1: Formula: (and (let ((.cse0 (select v_B_19 v_thread2Thread1of1ForFork1_j_18))) (or (and (< 0 .cse0) (= v_thread2Thread1of1ForFork1_cnt_13 (+ v_thread2_cnt_28 1))) (and (= v_thread2_cnt_28 v_thread2Thread1of1ForFork1_cnt_13) (<= .cse0 0)))) (= v_thread2Thread1of1ForFork1_j_17 (+ v_thread2Thread1of1ForFork1_j_18 1)) (let ((.cse1 (select v_A_21 v_thread2Thread1of1ForFork1_j_18))) (or (and (< 0 .cse1) (= (+ v_thread2Thread1of1ForFork1_cnt_14 1) v_thread2_cnt_28)) (and (<= .cse1 0) (= v_thread2_cnt_28 v_thread2Thread1of1ForFork1_cnt_14)))) (< v_thread2Thread1of1ForFork1_j_18 v_N_18)) InVars {A=v_A_21, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_18, N=v_N_18, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_14, B=v_B_19} OutVars{A=v_A_21, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_17, N=v_N_18, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_13, B=v_B_19} AuxVars[v_thread2_cnt_28] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_cnt] 99#[L36-1, L52-1, L19]true [123] L52-1-->L52-1: Formula: (and (let ((.cse0 (select v_B_19 v_thread2Thread1of1ForFork1_j_18))) (or (and (< 0 .cse0) (= v_thread2Thread1of1ForFork1_cnt_13 (+ v_thread2_cnt_28 1))) (and (= v_thread2_cnt_28 v_thread2Thread1of1ForFork1_cnt_13) (<= .cse0 0)))) (= v_thread2Thread1of1ForFork1_j_17 (+ v_thread2Thread1of1ForFork1_j_18 1)) (let ((.cse1 (select v_A_21 v_thread2Thread1of1ForFork1_j_18))) (or (and (< 0 .cse1) (= (+ v_thread2Thread1of1ForFork1_cnt_14 1) v_thread2_cnt_28)) (and (<= .cse1 0) (= v_thread2_cnt_28 v_thread2Thread1of1ForFork1_cnt_14)))) (< v_thread2Thread1of1ForFork1_j_18 v_N_18)) InVars {A=v_A_21, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_18, N=v_N_18, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_14, B=v_B_19} OutVars{A=v_A_21, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_17, N=v_N_18, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_13, B=v_B_19} AuxVars[v_thread2_cnt_28] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_cnt] 99#[L36-1, L52-1, L19]true [2023-10-12 17:19:44,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:19:44,634 INFO L85 PathProgramCache]: Analyzing trace with hash -872756893, now seen corresponding path program 1 times [2023-10-12 17:19:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:19:44,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069389602] [2023-10-12 17:19:44,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:19:44,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:19:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:19:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:19:44,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:19:44,677 INFO L85 PathProgramCache]: Analyzing trace with hash 4897, now seen corresponding path program 1 times [2023-10-12 17:19:44,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:19:44,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246996369] [2023-10-12 17:19:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:19:44,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:19:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:19:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:19:44,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:19:44,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1200747517, now seen corresponding path program 2 times [2023-10-12 17:19:44,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:19:44,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637400309] [2023-10-12 17:19:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:19:44,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:19:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:19:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:19:44,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:19:44,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-10-12 17:19:45,396 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:19:45,397 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:19:45,397 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:19:45,397 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:19:45,397 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:19:45,397 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:19:45,397 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:19:45,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:19:45,397 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:19:45,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:19:45,397 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:19:45,434 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 7637 disjunctions. This might take some time... [2023-10-12 17:19:48,163 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 6735 disjunctions. [2023-10-12 17:19:48,213 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 17:19:48,216 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 17:19:48,217 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 17:19:59,509 WARN L223 SmtUtils]: Spent 11.17s on a formula simplification. DAG size of input: 739 DAG size of output: 59 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.setFormulaAndSimplify) [2023-10-12 17:19:59,513 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 17:19:59,517 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 17:19:59,783 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 23 [2023-10-12 17:20:01,072 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:20:01,073 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:20:01,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:01,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:01,078 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 17:20:01,084 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 17:20:01,084 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 17:20:01,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:01,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:01,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:01,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:01,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:01,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:01,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:01,127 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 17:20:01,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:01,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:01,129 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 17:20:01,131 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 17:20:01,133 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 17:20:01,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:01,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:01,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:01,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:01,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:01,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:01,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:01,160 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 17:20:01,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:01,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:01,162 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 17:20:01,164 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 17:20:01,167 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 17:20:01,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:01,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:01,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:01,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:01,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:01,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:01,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:20:01,218 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:20:01,218 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:20:01,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:01,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:01,220 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 17:20:01,222 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 17:20:01,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:20:01,244 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:20:01,245 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:20:01,245 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_j, N) = -1*thread2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2023-10-12 17:20:01,259 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 17:20:01,263 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:20:01,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:20:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:20:01,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:20:01,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:20:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:20:01,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:20:01,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:20:01,308 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 17:20:01,309 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 17:20:01,310 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 17:20:01,437 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 7 states and 307 transitions. [2023-10-12 17:20:01,437 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:20:01,462 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:20:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:20:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 17:20:01,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions. [2023-10-12 17:20:01,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 151 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:20:01,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:20:01,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 151 transitions. Stem has 8 letters. Loop has 2 letters. [2023-10-12 17:20:01,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:20:01,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 151 transitions. Stem has 6 letters. Loop has 4 letters. [2023-10-12 17:20:01,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:20:01,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 3048 transitions, 21336 flow [2023-10-12 17:20:01,676 INFO L124 PetriNetUnfolderBase]: 1372/1935 cut-off events. [2023-10-12 17:20:01,676 INFO L125 PetriNetUnfolderBase]: For 366/366 co-relation queries the response was YES. [2023-10-12 17:20:01,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6206 conditions, 1935 events. 1372/1935 cut-off events. For 366/366 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7744 event pairs, 37 based on Foata normal form. 0/1102 useless extension candidates. Maximal degree in co-relation 4672. Up to 659 conditions per place. [2023-10-12 17:20:01,683 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 49 places, 3048 transitions, 21336 flow [2023-10-12 17:20:01,721 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 49 places, 3048 transitions, 21336 flow [2023-10-12 17:20:01,721 INFO L430 stractBuchiCegarLoop]: Abstraction has has 49 places, 3048 transitions, 21336 flow [2023-10-12 17:20:01,721 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:20:01,722 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 places, 3048 transitions, 21336 flow [2023-10-12 17:20:01,742 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:20:01,742 INFO L124 PetriNetUnfolderBase]: 59/99 cut-off events. [2023-10-12 17:20:01,743 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-10-12 17:20:01,743 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:20:01,744 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [85] $Ultimate##0-->L18: Formula: (and (< v_ULTIMATE.start_m_3 v_N_7) (<= 0 v_ULTIMATE.start_m_3)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} AuxVars[] AssignedVars[] 42#[L18]true [106] L18-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_12} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 44#[L18-1, $Ultimate##0]true [109] L18-1-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_12, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_8, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_cnt, thread2Thread1of1ForFork1_thidvar1] 95#[$Ultimate##0, $Ultimate##0, L19]true [88] $Ultimate##0-->L36-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 97#[$Ultimate##0, L36-1, L19]true [112] L19-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2, thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_12} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0, thread3Thread1of1ForFork2_k] 168#[$Ultimate##0, L36-1, L20, $Ultimate##0]true [99] $Ultimate##0-->L72-1: Formula: (= v_thread3Thread1of1ForFork2_k_1 0) InVars {} OutVars{thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_1} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k] 170#[$Ultimate##0, L36-1, L20, L72-1]true [120] L72-1-->L72-1: Formula: (and (= (+ v_thread3Thread1of1ForFork2_k_16 1) v_thread3Thread1of1ForFork2_k_15) (= (store v_B_16 v_thread3Thread1of1ForFork2_k_16 v_thread3Thread1of1ForFork2_k_16) v_B_15) (< v_thread3Thread1of1ForFork2_k_16 v_N_14)) InVars {N=v_N_14, thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_16, B=v_B_16} OutVars{N=v_N_14, thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_15, B=v_B_15} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k, B] 170#[$Ultimate##0, L36-1, L20, L72-1]true [2023-10-12 17:20:01,745 INFO L750 eck$LassoCheckResult]: Loop: 170#[$Ultimate##0, L36-1, L20, L72-1]true [120] L72-1-->L72-1: Formula: (and (= (+ v_thread3Thread1of1ForFork2_k_16 1) v_thread3Thread1of1ForFork2_k_15) (= (store v_B_16 v_thread3Thread1of1ForFork2_k_16 v_thread3Thread1of1ForFork2_k_16) v_B_15) (< v_thread3Thread1of1ForFork2_k_16 v_N_14)) InVars {N=v_N_14, thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_16, B=v_B_16} OutVars{N=v_N_14, thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_15, B=v_B_15} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k, B] 170#[$Ultimate##0, L36-1, L20, L72-1]true [120] L72-1-->L72-1: Formula: (and (= (+ v_thread3Thread1of1ForFork2_k_16 1) v_thread3Thread1of1ForFork2_k_15) (= (store v_B_16 v_thread3Thread1of1ForFork2_k_16 v_thread3Thread1of1ForFork2_k_16) v_B_15) (< v_thread3Thread1of1ForFork2_k_16 v_N_14)) InVars {N=v_N_14, thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_16, B=v_B_16} OutVars{N=v_N_14, thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_15, B=v_B_15} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k, B] 170#[$Ultimate##0, L36-1, L20, L72-1]true [2023-10-12 17:20:01,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:20:01,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1285669180, now seen corresponding path program 1 times [2023-10-12 17:20:01,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:20:01,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992324251] [2023-10-12 17:20:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:20:01,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:20:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:20:01,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:20:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:20:01,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:20:01,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:20:01,776 INFO L85 PathProgramCache]: Analyzing trace with hash 4801, now seen corresponding path program 1 times [2023-10-12 17:20:01,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:20:01,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743458845] [2023-10-12 17:20:01,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:20:01,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:20:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:20:01,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:20:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:20:01,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:20:01,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:20:01,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1422503108, now seen corresponding path program 2 times [2023-10-12 17:20:01,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:20:01,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662313020] [2023-10-12 17:20:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:20:01,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:20:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:20:01,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:20:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:20:01,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:20:01,886 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:20:01,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:20:01,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:20:01,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:20:01,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:20:01,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:01,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:20:01,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:20:01,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:20:01,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:20:01,887 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:20:01,887 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 17:20:01,890 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 17:20:01,892 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 17:20:01,894 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 17:20:01,896 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 17:20:01,899 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 17:20:01,901 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 17:20:01,903 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 17:20:01,905 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 17:20:01,926 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 17:20:02,002 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:20:02,003 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:20:02,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,004 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 17:20:02,006 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 17:20:02,008 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 17:20:02,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:20:02,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:20:02,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:20:02,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,033 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 17:20:02,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,065 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 17:20:02,066 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 17:20:02,067 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 17:20:02,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,085 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 17:20:02,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,086 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 17:20:02,088 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 17:20:02,090 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 17:20:02,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,107 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 17:20:02,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,109 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 17:20:02,109 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 17:20:02,112 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 17:20:02,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,142 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 17:20:02,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,144 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 17:20:02,155 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 17:20:02,156 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 17:20:02,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-10-12 17:20:02,199 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 17:20:02,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,200 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 17:20:02,201 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 17:20:02,203 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 17:20:02,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,231 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 17:20:02,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,233 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 17:20:02,233 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 17:20:02,236 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 17:20:02,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,253 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,256 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 17:20:02,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,257 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 17:20:02,258 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 17:20:02,260 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 17:20:02,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,278 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 17:20:02,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,279 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 17:20:02,281 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 17:20:02,282 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 17:20:02,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,291 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,300 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 17:20:02,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,301 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 17:20:02,303 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 17:20:02,304 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 17:20:02,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:20:02,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:20:02,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:20:02,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:20:02,317 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 17:20:02,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,318 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 17:20:02,322 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 17:20:02,323 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 17:20:02,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:20:02,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:20:02,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:20:02,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:20:02,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:20:02,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:20:02,348 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:20:02,355 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:20:02,356 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:20:02,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:20:02,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:20:02,357 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 17:20:02,357 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 17:20:02,360 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:20:02,368 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:20:02,369 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:20:02,369 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread3Thread1of1ForFork2_k, N) = -1*thread3Thread1of1ForFork2_k + 1*N Supporting invariants [] [2023-10-12 17:20:02,372 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 17:20:02,377 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:20:02,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:20:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:20:02,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:20:02,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:20:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:20:02,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:20:02,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:20:02,410 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 17:20:02,411 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 17:20:02,411 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:20:02,517 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 310 transitions. [2023-10-12 17:20:02,518 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:20:02,757 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:20:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:20:02,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:20:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2023-10-12 17:20:02,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 154 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:20:02,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:20:02,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 154 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:20:02,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:20:02,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 154 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:20:02,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:20:02,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 45312 transitions, 407808 flow [2023-10-12 17:20:03,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-10-12 17:20:11,769 INFO L124 PetriNetUnfolderBase]: 4401/6167 cut-off events. [2023-10-12 17:20:11,769 INFO L125 PetriNetUnfolderBase]: For 1249/1249 co-relation queries the response was YES. [2023-10-12 17:20:11,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25597 conditions, 6167 events. 4401/6167 cut-off events. For 1249/1249 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 29935 event pairs, 41 based on Foata normal form. 0/3261 useless extension candidates. Maximal degree in co-relation 21920. Up to 2193 conditions per place. [2023-10-12 17:20:11,775 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 63 places, 45312 transitions, 407808 flow [2023-10-12 17:20:12,163 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 63 places, 45312 transitions, 407808 flow [2023-10-12 17:20:12,163 INFO L430 stractBuchiCegarLoop]: Abstraction has has 63 places, 45312 transitions, 407808 flow [2023-10-12 17:20:12,163 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:20:12,163 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 63 places, 45312 transitions, 407808 flow [2023-10-12 17:20:21,819 INFO L124 PetriNetUnfolderBase]: 4401/6167 cut-off events. [2023-10-12 17:20:21,820 INFO L125 PetriNetUnfolderBase]: For 1249/1249 co-relation queries the response was YES. [2023-10-12 17:20:21,820 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:20:21,824 INFO L201 PluginConnector]: Adding new model motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:20:21 BoogieIcfgContainer [2023-10-12 17:20:21,824 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:20:21,825 INFO L158 Benchmark]: Toolchain (without parser) took 38755.10ms. Allocated memory was 191.9MB in the beginning and 882.9MB in the end (delta: 691.0MB). Free memory was 146.1MB in the beginning and 631.0MB in the end (delta: -484.9MB). Peak memory consumption was 650.9MB. Max. memory is 8.0GB. [2023-10-12 17:20:21,825 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.20ms. Allocated memory is still 191.9MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:20:21,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.22ms. Allocated memory is still 191.9MB. Free memory was 146.1MB in the beginning and 144.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:20:21,826 INFO L158 Benchmark]: Boogie Preprocessor took 20.58ms. Allocated memory is still 191.9MB. Free memory was 144.4MB in the beginning and 143.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:20:21,826 INFO L158 Benchmark]: RCFGBuilder took 270.95ms. Allocated memory is still 191.9MB. Free memory was 143.3MB in the beginning and 131.4MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-10-12 17:20:21,826 INFO L158 Benchmark]: BuchiAutomizer took 38435.25ms. Allocated memory was 191.9MB in the beginning and 882.9MB in the end (delta: 691.0MB). Free memory was 131.4MB in the beginning and 631.0MB in the end (delta: -499.6MB). Peak memory consumption was 636.2MB. Max. memory is 8.0GB. [2023-10-12 17:20:21,827 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 0.20ms. Allocated memory is still 191.9MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.22ms. Allocated memory is still 191.9MB. Free memory was 146.1MB in the beginning and 144.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.58ms. Allocated memory is still 191.9MB. Free memory was 144.4MB in the beginning and 143.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 270.95ms. Allocated memory is still 191.9MB. Free memory was 143.3MB in the beginning and 131.4MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 38435.25ms. Allocated memory was 191.9MB in the beginning and 882.9MB in the end (delta: 691.0MB). Free memory was 131.4MB in the beginning and 631.0MB in the end (delta: -499.6MB). Peak memory consumption was 636.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 3 locations. One deterministic module has affine ranking function N + -1 * j and consists of 4 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.3s and 4 iterations. TraceHistogramMax:0. Analysis of lassos took 17.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. 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, 296 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 293 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 149 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital171 mio100 ax100 hnf100 lsp2276 ukn29 mio100 lsp94 div100 bol100 ite100 ukn100 eq152 hnf95 smp100 dnf266 smp69 tf100 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 87ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.4s - 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, 33 PlacesBefore, 25 PlacesAfterwards, 26 TransitionsBefore, 18 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 137 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 137, independent: 137, independent conditional: 0, independent unconditional: 137, 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: 121, independent: 121, independent conditional: 0, independent unconditional: 121, 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: 121, independent: 121, independent conditional: 0, independent unconditional: 121, 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: 137, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 121, unknown conditional: 0, unknown unconditional: 121] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, 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 17:20:21,842 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...