/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/motivating-slowitp.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:53:50,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:53:50,802 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2024-02-09 23:53:50,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:53:50,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:53:50,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:53:50,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:53:50,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:53:50,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:53:50,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:53:50,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:53:50,839 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:53:50,839 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:53:50,840 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:53:50,840 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:53:50,840 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:53:50,841 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:53:50,841 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:53:50,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:53:50,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:53:50,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:53:50,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:53:50,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:53:50,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:53:50,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:53:50,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:53:50,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:53:50,843 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:53:50,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:53:50,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:53:50,844 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:53:50,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:53:50,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:53:50,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:53:50,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:53:50,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:53:50,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:53:50,846 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:53:50,846 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2024-02-09 23:53:51,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:53:51,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:53:51,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:53:51,169 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:53:51,170 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:53:51,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating-slowitp.bpl [2024-02-09 23:53:51,171 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating-slowitp.bpl' [2024-02-09 23:53:51,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:53:51,199 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:53:51,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:53:51,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:53:51,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:53:51,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,220 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-02-09 23:53:51,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:53:51,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:53:51,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:53:51,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:53:51,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:53:51,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:53:51,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:53:51,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:53:51,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/1) ... [2024-02-09 23:53:51,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:51,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:51,338 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) [2024-02-09 23:53:51,347 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 [2024-02-09 23:53:51,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-02-09 23:53:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-09 23:53:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-09 23:53:51,378 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-02-09 23:53:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-09 23:53:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-09 23:53:51,379 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2024-02-09 23:53:51,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-09 23:53:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-09 23:53:51,379 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:53:51,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:53:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:53:51,380 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-09 23:53:51,421 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:53:51,423 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:53:51,558 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:53:51,601 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:53:51,602 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-09 23:53:51,603 INFO L201 PluginConnector]: Adding new model motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:53:51 BoogieIcfgContainer [2024-02-09 23:53:51,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:53:51,604 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:53:51,604 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:53:51,607 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:53:51,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:53:51,608 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:53:51" (1/2) ... [2024-02-09 23:53:51,609 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4db297a9 and model type motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:53:51, skipping insertion in model container [2024-02-09 23:53:51,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:53:51,609 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:53:51" (2/2) ... [2024-02-09 23:53:51,610 INFO L332 chiAutomizerObserver]: Analyzing ICFG motivating-slowitp.bpl [2024-02-09 23:53:51,680 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-09 23:53:51,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 85 flow [2024-02-09 23:53:51,719 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2024-02-09 23:53:51,719 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-09 23:53:51,723 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. [2024-02-09 23:53:51,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 85 flow [2024-02-09 23:53:51,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2024-02-09 23:53:51,731 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:53:51,731 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:53:51,731 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:53:51,731 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:53:51,731 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:53:51,731 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:53:51,731 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:53:51,732 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2024-02-09 23:53:51,732 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 places, 26 transitions, 70 flow [2024-02-09 23:53:51,736 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:53:51,736 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-02-09 23:53:51,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-09 23:53:51,736 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:53:51,739 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:53:51,739 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 places, 26 transitions, 70 flow [2024-02-09 23:53:51,740 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:53:51,740 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-02-09 23:53:51,740 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-09 23:53:51,741 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:53:51,744 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 [88] $Ultimate##0-->L36-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 46#[L18-1, L36-1]true [2024-02-09 23:53:51,745 INFO L750 eck$LassoCheckResult]: Loop: 46#[L18-1, L36-1]true [90] L36-1-->L36: Formula: (< v_thread1Thread1of1ForFork0_i_5 v_N_1) InVars {thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_5, N=v_N_1} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_5, N=v_N_1} AuxVars[] AssignedVars[] 49#[L18-1, L36]true [92] L36-->L36-1: Formula: (and (= v_A_7 (store v_A_8 v_thread1Thread1of1ForFork0_i_7 (let ((.cse0 (select v_A_8 v_thread1Thread1of1ForFork0_i_7))) (ite (< .cse0 0) 0 .cse0)))) (= (+ v_thread1Thread1of1ForFork0_i_7 1) v_thread1Thread1of1ForFork0_i_8)) InVars {A=v_A_8, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_7} OutVars{A=v_A_7, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_8} AuxVars[] AssignedVars[A, thread1Thread1of1ForFork0_i] 46#[L18-1, L36-1]true [2024-02-09 23:53:51,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:51,752 INFO L85 PathProgramCache]: Analyzing trace with hash 114850, now seen corresponding path program 1 times [2024-02-09 23:53:51,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:51,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607509830] [2024-02-09 23:53:51,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:51,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:51,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:51,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:51,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:51,832 INFO L85 PathProgramCache]: Analyzing trace with hash 3843, now seen corresponding path program 1 times [2024-02-09 23:53:51,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:51,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659393283] [2024-02-09 23:53:51,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:51,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:51,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:51,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:51,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash 110373732, now seen corresponding path program 1 times [2024-02-09 23:53:51,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811139898] [2024-02-09 23:53:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:51,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:51,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:51,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:51,986 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:53:51,986 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:53:51,986 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:53:51,986 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:53:51,987 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:53:51,987 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:51,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:53:51,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:53:51,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration1_Lasso [2024-02-09 23:53:51,987 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:53:51,987 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:53:52,000 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:52,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:52,071 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:53:52,074 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:53:52,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:52,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:52,077 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) [2024-02-09 23:53:52,078 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 [2024-02-09 23:53:52,080 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 [2024-02-09 23:53:52,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:52,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:53:52,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:52,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:52,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:52,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:53:52,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:53:52,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:52,103 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 [2024-02-09 23:53:52,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:52,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:52,105 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) [2024-02-09 23:53:52,111 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 [2024-02-09 23:53:52,118 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 [2024-02-09 23:53:52,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:52,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:52,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:52,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:52,123 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:52,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:52,140 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:53:52,147 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 23:53:52,148 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2024-02-09 23:53:52,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:52,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:52,162 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) [2024-02-09 23:53:52,166 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 [2024-02-09 23:53:52,166 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:53:52,176 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:53:52,177 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:53:52,177 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_i, N) = -1*thread1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2024-02-09 23:53:52,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-02-09 23:53:52,185 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:53:52,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:53:52,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:53:52,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:53:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:53:52,240 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:53:52,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:53:52,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:53:52,293 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 [2024-02-09 23:53:52,296 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:53:52,471 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 [2024-02-09 23:53:52,490 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 400 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2024-02-09 23:53:52,491 INFO L89 BuchiIntersect]: Starting Intersection [2024-02-09 23:53:52,492 INFO L72 uchiIntersectDefault]: Starting Basic Intersection [2024-02-09 23:53:52,504 INFO L85 uchiIntersectDefault]: Exiting Basic Intersection [2024-02-09 23:53:52,504 INFO L99 BuchiIntersect]: Exiting Intersection [2024-02-09 23:53:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 23:53:52,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:53:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-02-09 23:53:52,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 3 letters. Loop has 2 letters. [2024-02-09 23:53:52,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:52,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 5 letters. Loop has 2 letters. [2024-02-09 23:53:52,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:52,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 3 letters. Loop has 4 letters. [2024-02-09 23:53:52,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:52,527 INFO L428 stractBuchiCegarLoop]: Abstraction has has 51 places, 644 transitions, 3014 flow [2024-02-09 23:53:52,528 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 23:53:52,528 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 51 places, 644 transitions, 3014 flow [2024-02-09 23:53:52,597 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:53:52,597 INFO L124 PetriNetUnfolderBase]: 182/261 cut-off events. [2024-02-09 23:53:52,597 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-02-09 23:53:52,597 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:53:52,598 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] 111#[$Ultimate##0, $Ultimate##0, L19]true [93] $Ultimate##0-->L50: Formula: (= v_thread2Thread1of1ForFork1_cnt_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_cnt] 113#[L50, $Ultimate##0, L19]true [94] L50-->L52-1: Formula: (= v_thread2Thread1of1ForFork1_j_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j] 115#[$Ultimate##0, L52-1, L19]true [96] L52-1-->L52: Formula: (< v_thread2Thread1of1ForFork1_j_5 v_N_4) InVars {thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_5, N=v_N_4} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_5, N=v_N_4} AuxVars[] AssignedVars[] 117#[L52, $Ultimate##0, L19]true [98] L52-->L52-1: Formula: (and (let ((.cse0 (select v_A_13 v_thread2Thread1of1ForFork1_j_7))) (or (and (= (+ v_thread2Thread1of1ForFork1_cnt_3 1) v_thread2_cnt_26) (< 0 .cse0)) (and (= v_thread2_cnt_26 v_thread2Thread1of1ForFork1_cnt_3) (<= .cse0 0)))) (= (+ v_thread2Thread1of1ForFork1_j_7 1) v_thread2Thread1of1ForFork1_j_8) (let ((.cse1 (select v_B_13 v_thread2Thread1of1ForFork1_j_7))) (or (and (= v_thread2_cnt_26 v_thread2Thread1of1ForFork1_cnt_4) (<= .cse1 0)) (and (< 0 .cse1) (= (+ v_thread2_cnt_26 1) v_thread2Thread1of1ForFork1_cnt_4))))) InVars {A=v_A_13, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_7, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_3, B=v_B_13} OutVars{A=v_A_13, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_8, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_4, B=v_B_13} AuxVars[v_thread2_cnt_26] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_cnt] 115#[$Ultimate##0, L52-1, L19]true [2024-02-09 23:53:52,598 INFO L750 eck$LassoCheckResult]: Loop: 115#[$Ultimate##0, L52-1, L19]true [96] L52-1-->L52: Formula: (< v_thread2Thread1of1ForFork1_j_5 v_N_4) InVars {thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_5, N=v_N_4} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_5, N=v_N_4} AuxVars[] AssignedVars[] 117#[L52, $Ultimate##0, L19]true [98] L52-->L52-1: Formula: (and (let ((.cse0 (select v_A_13 v_thread2Thread1of1ForFork1_j_7))) (or (and (= (+ v_thread2Thread1of1ForFork1_cnt_3 1) v_thread2_cnt_26) (< 0 .cse0)) (and (= v_thread2_cnt_26 v_thread2Thread1of1ForFork1_cnt_3) (<= .cse0 0)))) (= (+ v_thread2Thread1of1ForFork1_j_7 1) v_thread2Thread1of1ForFork1_j_8) (let ((.cse1 (select v_B_13 v_thread2Thread1of1ForFork1_j_7))) (or (and (= v_thread2_cnt_26 v_thread2Thread1of1ForFork1_cnt_4) (<= .cse1 0)) (and (< 0 .cse1) (= (+ v_thread2_cnt_26 1) v_thread2Thread1of1ForFork1_cnt_4))))) InVars {A=v_A_13, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_7, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_3, B=v_B_13} OutVars{A=v_A_13, thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_8, thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_4, B=v_B_13} AuxVars[v_thread2_cnt_26] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_cnt] 115#[$Ultimate##0, L52-1, L19]true [2024-02-09 23:53:52,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:52,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1285537638, now seen corresponding path program 1 times [2024-02-09 23:53:52,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:52,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791397814] [2024-02-09 23:53:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:52,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:52,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:52,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:52,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:52,628 INFO L85 PathProgramCache]: Analyzing trace with hash 4035, now seen corresponding path program 1 times [2024-02-09 23:53:52,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:52,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956197752] [2024-02-09 23:53:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:52,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:52,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:52,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:52,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:52,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1548914204, now seen corresponding path program 2 times [2024-02-09 23:53:52,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:52,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773199374] [2024-02-09 23:53:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:52,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:52,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:52,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:53,001 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:53:53,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:53:53,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:53:53,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:53:53,002 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:53:53,002 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:53,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:53:53,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:53:53,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration2_Lasso [2024-02-09 23:53:53,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:53:53,002 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:53:53,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:53,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:53,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:53,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:53,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:53,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:53:53,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:53:53,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:53,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:53,368 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) [2024-02-09 23:53:53,372 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 [2024-02-09 23:53:53,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:53,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:53,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:53,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:53,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:53,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:53,386 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 [2024-02-09 23:53:53,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:53,404 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 [2024-02-09 23:53:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:53,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:53,406 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) [2024-02-09 23:53:53,410 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 [2024-02-09 23:53:53,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:53,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:53:53,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:53,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:53,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:53,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:53:53,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:53:53,422 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 [2024-02-09 23:53:53,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:53,440 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 [2024-02-09 23:53:53,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:53,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:53,441 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) [2024-02-09 23:53:53,463 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 [2024-02-09 23:53:53,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:53,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:53,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:53,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:53,473 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 [2024-02-09 23:53:53,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:53,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:53,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:53,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-02-09 23:53:53,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:53,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:53,496 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) [2024-02-09 23:53:53,501 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 [2024-02-09 23:53:53,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:53,508 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2024-02-09 23:53:53,508 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-02-09 23:53:53,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:53,516 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 [2024-02-09 23:53:53,547 INFO L401 nArgumentSynthesizer]: We have 72 Motzkin's Theorem applications. [2024-02-09 23:53:53,547 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-02-09 23:53:53,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:53,602 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 [2024-02-09 23:53:53,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:53,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:53,604 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) [2024-02-09 23:53:53,610 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 [2024-02-09 23:53:53,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:53,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:53,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:53,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:53,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:53,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:53,625 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 [2024-02-09 23:53:53,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:53:53,657 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-02-09 23:53:53,657 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-02-09 23:53:53,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:53,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:53,658 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) [2024-02-09 23:53:53,660 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 [2024-02-09 23:53:53,891 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:53:53,913 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:53:53,913 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:53:53,913 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_j, N) = -1*thread2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2024-02-09 23:53:53,922 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 [2024-02-09 23:53:53,923 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:53:53,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:53:53,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:53:53,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:53:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:53:53,957 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:53:53,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:53:53,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:53:53,970 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 [2024-02-09 23:53:53,970 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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) [2024-02-09 23:53:54,061 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 9 states and 400 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2024-02-09 23:53:54,061 INFO L89 BuchiIntersect]: Starting Intersection [2024-02-09 23:53:54,061 INFO L72 uchiIntersectDefault]: Starting Basic Intersection [2024-02-09 23:53:54,103 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 [2024-02-09 23:53:54,140 INFO L85 uchiIntersectDefault]: Exiting Basic Intersection [2024-02-09 23:53:54,140 INFO L99 BuchiIntersect]: Exiting Intersection [2024-02-09 23:53:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 23:53:54,142 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) [2024-02-09 23:53:54,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-02-09 23:53:54,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 7 letters. Loop has 2 letters. [2024-02-09 23:53:54,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:54,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 9 letters. Loop has 2 letters. [2024-02-09 23:53:54,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:54,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 7 letters. Loop has 4 letters. [2024-02-09 23:53:54,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:54,144 INFO L428 stractBuchiCegarLoop]: Abstraction has has 69 places, 15912 transitions, 106080 flow [2024-02-09 23:53:54,144 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 23:53:54,144 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 69 places, 15912 transitions, 106080 flow [2024-02-09 23:53:54,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:53:54,504 INFO L124 PetriNetUnfolderBase]: 766/982 cut-off events. [2024-02-09 23:53:54,504 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-02-09 23:53:54,504 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:53:54,504 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] 111#[$Ultimate##0, $Ultimate##0, L19]true [112] L19-->$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] 188#[$Ultimate##0, $Ultimate##0, L20, $Ultimate##0]true [99] $Ultimate##0-->L72-1: Formula: (= v_thread3Thread1of1ForFork2_k_1 0) InVars {} OutVars{thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_1} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k] 190#[$Ultimate##0, $Ultimate##0, L20, L72-1]true [101] L72-1-->L72: Formula: (< v_thread3Thread1of1ForFork2_k_5 v_N_5) InVars {thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_5, N=v_N_5} OutVars{thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_5, N=v_N_5} AuxVars[] AssignedVars[] 192#[$Ultimate##0, $Ultimate##0, L20, L72]true [103] L72-->L72-1: Formula: (and (= v_B_5 (store v_B_6 v_thread3Thread1of1ForFork2_k_7 v_thread3Thread1of1ForFork2_k_7)) (= v_thread3Thread1of1ForFork2_k_8 (+ v_thread3Thread1of1ForFork2_k_7 1))) InVars {thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_7, B=v_B_6} OutVars{thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_8, B=v_B_5} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k, B] 190#[$Ultimate##0, $Ultimate##0, L20, L72-1]true [2024-02-09 23:53:54,505 INFO L750 eck$LassoCheckResult]: Loop: 190#[$Ultimate##0, $Ultimate##0, L20, L72-1]true [101] L72-1-->L72: Formula: (< v_thread3Thread1of1ForFork2_k_5 v_N_5) InVars {thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_5, N=v_N_5} OutVars{thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_5, N=v_N_5} AuxVars[] AssignedVars[] 192#[$Ultimate##0, $Ultimate##0, L20, L72]true [103] L72-->L72-1: Formula: (and (= v_B_5 (store v_B_6 v_thread3Thread1of1ForFork2_k_7 v_thread3Thread1of1ForFork2_k_7)) (= v_thread3Thread1of1ForFork2_k_8 (+ v_thread3Thread1of1ForFork2_k_7 1))) InVars {thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_7, B=v_B_6} OutVars{thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_8, B=v_B_5} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k, B] 190#[$Ultimate##0, $Ultimate##0, L20, L72-1]true [2024-02-09 23:53:54,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1284966644, now seen corresponding path program 1 times [2024-02-09 23:53:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:54,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30059750] [2024-02-09 23:53:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:54,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:54,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:54,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:54,535 INFO L85 PathProgramCache]: Analyzing trace with hash 4195, now seen corresponding path program 1 times [2024-02-09 23:53:54,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573036276] [2024-02-09 23:53:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:54,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:54,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:54,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:54,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2097639598, now seen corresponding path program 2 times [2024-02-09 23:53:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:53:54,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427007895] [2024-02-09 23:53:54,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:53:54,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:53:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:54,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:53:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:53:54,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:53:54,645 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:53:54,645 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:53:54,645 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:53:54,645 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:53:54,645 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:53:54,645 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:54,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:53:54,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:53:54,646 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration3_Lasso [2024-02-09 23:53:54,646 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:53:54,646 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:53:54,648 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-02-09 23:53:54,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:53:54,736 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:53:54,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:54,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:54,737 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) [2024-02-09 23:53:54,744 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 [2024-02-09 23:53:54,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:54,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:54,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:54,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:54,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:54,753 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:54,760 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 [2024-02-09 23:53:54,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:54,780 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 [2024-02-09 23:53:54,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:54,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:54,781 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) [2024-02-09 23:53:54,787 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 [2024-02-09 23:53:54,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:54,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:53:54,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:54,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:54,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:54,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:53:54,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:53:54,798 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 [2024-02-09 23:53:54,812 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:54,817 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 [2024-02-09 23:53:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:54,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:54,820 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) [2024-02-09 23:53:54,825 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 [2024-02-09 23:53:54,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:54,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:54,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:54,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:54,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:54,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:54,880 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 [2024-02-09 23:53:54,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:54,913 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 [2024-02-09 23:53:54,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:54,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:54,915 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) [2024-02-09 23:53:54,917 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 [2024-02-09 23:53:54,918 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 [2024-02-09 23:53:54,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:54,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:54,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:54,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:54,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:54,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:54,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:54,951 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 [2024-02-09 23:53:54,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:54,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:54,953 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) [2024-02-09 23:53:54,961 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 [2024-02-09 23:53:54,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:54,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:54,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:54,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:54,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:54,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:54,977 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 [2024-02-09 23:53:54,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:54,994 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 [2024-02-09 23:53:54,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:54,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:54,995 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) [2024-02-09 23:53:55,000 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 [2024-02-09 23:53:55,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:55,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:55,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:55,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:55,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:55,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:55,012 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 [2024-02-09 23:53:55,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:55,025 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 [2024-02-09 23:53:55,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:55,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:55,026 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) [2024-02-09 23:53:55,038 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 [2024-02-09 23:53:55,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:55,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:55,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:55,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:55,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:55,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:55,049 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 [2024-02-09 23:53:55,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:53:55,079 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 [2024-02-09 23:53:55,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:55,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:55,089 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) [2024-02-09 23:53:55,094 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 [2024-02-09 23:53:55,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:53:55,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:53:55,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:53:55,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:53:55,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:53:55,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:53:55,108 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 [2024-02-09 23:53:55,119 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:53:55,132 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-02-09 23:53:55,132 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-02-09 23:53:55,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:53:55,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:53:55,133 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) [2024-02-09 23:53:55,139 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:53:55,147 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 [2024-02-09 23:53:55,158 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:53:55,159 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:53:55,159 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread3Thread1of1ForFork2_k, N) = -1*thread3Thread1of1ForFork2_k + 1*N Supporting invariants [] [2024-02-09 23:53:55,165 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 [2024-02-09 23:53:55,166 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:53:55,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:53:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:53:55,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:53:55,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:53:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:53:55,193 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:53:55,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:53:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:53:55,204 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 [2024-02-09 23:53:55,204 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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) [2024-02-09 23:53:55,277 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 9 states and 400 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2024-02-09 23:53:55,277 INFO L89 BuchiIntersect]: Starting Intersection [2024-02-09 23:53:55,277 INFO L72 uchiIntersectDefault]: Starting Basic Intersection [2024-02-09 23:53:57,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-02-09 23:53:58,472 INFO L85 uchiIntersectDefault]: Exiting Basic Intersection [2024-02-09 23:53:58,472 INFO L99 BuchiIntersect]: Exiting Intersection [2024-02-09 23:53:58,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 23:53:58,473 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) [2024-02-09 23:53:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-02-09 23:53:58,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 7 letters. Loop has 2 letters. [2024-02-09 23:53:58,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:58,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 9 letters. Loop has 2 letters. [2024-02-09 23:53:58,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:58,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 154 transitions. Stem has 7 letters. Loop has 4 letters. [2024-02-09 23:53:58,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:53:58,474 INFO L428 stractBuchiCegarLoop]: Abstraction has has 87 places, 392080 transitions, 3392168 flow [2024-02-09 23:53:58,474 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-02-09 23:53:58,474 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 87 places, 392080 transitions, 3392168 flow