/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_AUTOMATON -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 23:24:49,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:24:49,627 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 23:24:49,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:24:49,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:24:49,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:24:49,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:24:49,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:24:49,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:24:49,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:24:49,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:24:49,676 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:24:49,676 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:24:49,677 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:24:49,678 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:24:49,678 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:24:49,678 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:24:49,678 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:24:49,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:24:49,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:24:49,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:24:49,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:24:49,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:24:49,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:24:49,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:24:49,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:24:49,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:24:49,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:24:49,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:24:49,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:24:49,683 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:24:49,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:24:49,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:24:49,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:24:49,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:24:49,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:24:49,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:24:49,684 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:24:49,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2024-02-09 23:24:49,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:24:50,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:24:50,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:24:50,009 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:24:50,010 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:24:50,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating-slowitp.bpl [2024-02-09 23:24:50,012 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/motivating-slowitp.bpl' [2024-02-09 23:24:50,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:24:50,038 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:24:50,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:24:50,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:24:50,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:24:50,051 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,058 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,062 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-02-09 23:24:50,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:24:50,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:24:50,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:24:50,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:24:50,087 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,087 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,088 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,088 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,091 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,093 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,095 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,095 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 11:24:50" (1/1) ... [2024-02-09 23:24:50,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:24:50,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:24:50,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:24:50,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:24:50,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:50" (1/1) ... [2024-02-09 23:24:50,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:50,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:50,173 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 23:24:50,190 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 23:24:50,220 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-02-09 23:24:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-09 23:24:50,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-09 23:24:50,220 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-02-09 23:24:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-09 23:24:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-09 23:24:50,221 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2024-02-09 23:24:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-09 23:24:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-09 23:24:50,221 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:24:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:24:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:24:50,222 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 23:24:50,264 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:24:50,266 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:24:50,359 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:24:50,393 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:24:50,393 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-09 23:24:50,395 INFO L201 PluginConnector]: Adding new model motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:24:50 BoogieIcfgContainer [2024-02-09 23:24:50,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:24:50,396 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:24:50,397 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:24:50,400 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:24:50,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:24:50,401 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:24:50" (1/2) ... [2024-02-09 23:24:50,402 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@752a8713 and model type motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:24:50, skipping insertion in model container [2024-02-09 23:24:50,402 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:24:50,402 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 11:24:50" (2/2) ... [2024-02-09 23:24:50,404 INFO L332 chiAutomizerObserver]: Analyzing ICFG motivating-slowitp.bpl [2024-02-09 23:24:50,471 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-09 23:24:50,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 85 flow [2024-02-09 23:24:50,516 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2024-02-09 23:24:50,517 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-09 23:24:50,521 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 23:24:50,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 85 flow [2024-02-09 23:24:50,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2024-02-09 23:24:50,535 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:24:50,535 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:24:50,535 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:24:50,535 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:24:50,535 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:24:50,536 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:24:50,536 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:24:50,536 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-02-09 23:24:50,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2024-02-09 23:24:50,638 INFO L131 ngComponentsAnalysis]: Automaton has 62 accepting balls. 154 [2024-02-09 23:24:50,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:50,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:50,643 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-02-09 23:24:50,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:24:50,644 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:24:50,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 225 states, but on-demand construction may add more states [2024-02-09 23:24:50,670 INFO L131 ngComponentsAnalysis]: Automaton has 62 accepting balls. 154 [2024-02-09 23:24:50,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:50,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:50,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-02-09 23:24:50,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:24:50,682 INFO L748 eck$LassoCheckResult]: Stem: 39#[$Ultimate##0]don't care [85] $Ultimate##0-->L18: Formula: (and (< v_ULTIMATE.start_m_3 v_N_7) (<= 0 v_ULTIMATE.start_m_3)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} AuxVars[] AssignedVars[] 42#[L18]don't care [106] L18-->$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]don't care [88] $Ultimate##0-->L36-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 46#[L18-1, L36-1]don't care [2024-02-09 23:24:50,683 INFO L750 eck$LassoCheckResult]: Loop: 46#[L18-1, L36-1]don't care [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[] 52#[L36, L18-1]don't care [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]don't care [2024-02-09 23:24:50,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:50,692 INFO L85 PathProgramCache]: Analyzing trace with hash 114850, now seen corresponding path program 1 times [2024-02-09 23:24:50,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:50,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225844950] [2024-02-09 23:24:50,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:50,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:50,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:50,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:50,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:50,792 INFO L85 PathProgramCache]: Analyzing trace with hash 3843, now seen corresponding path program 1 times [2024-02-09 23:24:50,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:50,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910091805] [2024-02-09 23:24:50,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:50,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:50,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:50,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:50,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:50,823 INFO L85 PathProgramCache]: Analyzing trace with hash 110373732, now seen corresponding path program 1 times [2024-02-09 23:24:50,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:50,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220815306] [2024-02-09 23:24:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:50,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:50,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:50,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:51,011 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:51,013 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:51,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:51,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:51,014 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:51,014 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:51,014 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:51,014 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:51,014 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration1_Lasso [2024-02-09 23:24:51,014 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:51,015 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:51,031 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 23:24:51,082 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 23:24:51,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:51,140 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:51,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:51,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:51,144 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 23:24:51,152 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 23:24:51,153 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 23:24:51,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:51,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:24:51,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:51,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:51,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:51,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:24:51,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:24:51,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:51,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:51,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:51,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:51,174 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 23:24:51,176 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 23:24:51,177 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 23:24:51,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:51,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:51,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:51,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:51,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:51,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:51,216 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:51,225 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 23:24:51,225 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2024-02-09 23:24:51,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:51,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:51,232 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 23:24:51,238 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:51,246 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 23:24:51,262 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:51,262 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:51,263 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_i, N) = -1*thread1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2024-02-09 23:24:51,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-02-09 23:24:51,271 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:51,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:51,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:51,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:51,317 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:51,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:51,332 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 23:24:51,366 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 23:24:51,369 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 225 states, but on-demand construction may add more states Second 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 23:24:51,479 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 225 states, but on-demand construction may add more states. Second 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 592 states and 2065 transitions. Complement of second has 6 states. [2024-02-09 23:24:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 23:24:51,486 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 23:24:51,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2024-02-09 23:24:51,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 67 transitions. Stem has 3 letters. Loop has 2 letters. [2024-02-09 23:24:51,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:51,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 67 transitions. Stem has 5 letters. Loop has 2 letters. [2024-02-09 23:24:51,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:51,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 67 transitions. Stem has 3 letters. Loop has 4 letters. [2024-02-09 23:24:51,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:51,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 592 states and 2065 transitions. [2024-02-09 23:24:51,580 INFO L131 ngComponentsAnalysis]: Automaton has 54 accepting balls. 120 [2024-02-09 23:24:51,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-02-09 23:24:51,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 592 states to 421 states and 1476 transitions. [2024-02-09 23:24:51,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2024-02-09 23:24:51,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 323 [2024-02-09 23:24:51,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 421 states and 1476 transitions. [2024-02-09 23:24:51,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 23:24:51,637 INFO L218 hiAutomatonCegarLoop]: Abstraction has 421 states and 1476 transitions. [2024-02-09 23:24:51,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states and 1476 transitions. [2024-02-09 23:24:51,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 326. [2024-02-09 23:24:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 326 states have (on average 3.6564417177914113) internal successors, (1192), 325 states have internal predecessors, (1192), 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 23:24:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 1192 transitions. [2024-02-09 23:24:51,713 INFO L240 hiAutomatonCegarLoop]: Abstraction has 326 states and 1192 transitions. [2024-02-09 23:24:51,714 INFO L428 stractBuchiCegarLoop]: Abstraction has 326 states and 1192 transitions. [2024-02-09 23:24:51,714 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 23:24:51,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 1192 transitions. [2024-02-09 23:24:51,718 INFO L131 ngComponentsAnalysis]: Automaton has 54 accepting balls. 120 [2024-02-09 23:24:51,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:51,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:51,718 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-02-09 23:24:51,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:24:51,719 INFO L748 eck$LassoCheckResult]: Stem: 1699#[$Ultimate##0]don't care [85] $Ultimate##0-->L18: Formula: (and (< v_ULTIMATE.start_m_3 v_N_7) (<= 0 v_ULTIMATE.start_m_3)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} AuxVars[] AssignedVars[] 1701#[L18]don't care [106] L18-->$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] 1743#[L18-1, $Ultimate##0]don't care [109] L18-1-->$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] 1311#[$Ultimate##0, L19, $Ultimate##0]don't care [112] L19-->$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] 1313#[$Ultimate##0, L20, $Ultimate##0, $Ultimate##0]don't care [99] $Ultimate##0-->L72-1: Formula: (= v_thread3Thread1of1ForFork2_k_1 0) InVars {} OutVars{thread3Thread1of1ForFork2_k=v_thread3Thread1of1ForFork2_k_1} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_k] 1425#[L20, $Ultimate##0, L72-1, $Ultimate##0]don't care [2024-02-09 23:24:51,719 INFO L750 eck$LassoCheckResult]: Loop: 1425#[L20, $Ultimate##0, L72-1, $Ultimate##0]don't care [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[] 1429#[L20, $Ultimate##0, L72, $Ultimate##0]don't care [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] 1425#[L20, $Ultimate##0, L72-1, $Ultimate##0]don't care [2024-02-09 23:24:51,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash 110394602, now seen corresponding path program 1 times [2024-02-09 23:24:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:51,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054405309] [2024-02-09 23:24:51,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:51,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:51,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:51,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:51,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:51,735 INFO L85 PathProgramCache]: Analyzing trace with hash 4195, now seen corresponding path program 1 times [2024-02-09 23:24:51,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:51,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118097902] [2024-02-09 23:24:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:51,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:51,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:51,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:51,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:51,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1284966644, now seen corresponding path program 1 times [2024-02-09 23:24:51,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:51,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061990764] [2024-02-09 23:24:51,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:51,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:51,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:51,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:51,905 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:51,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:51,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:51,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:51,906 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:51,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:51,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:51,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:51,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration2_Lasso [2024-02-09 23:24:51,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:51,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:51,908 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 23:24:51,912 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 23:24:51,930 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 23:24:51,933 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 23:24:51,936 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 23:24:51,940 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 23:24:51,943 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 23:24:51,946 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 23:24:51,950 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 23:24:51,953 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 23:24:52,051 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:52,051 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:52,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:52,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:52,057 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 23:24:52,063 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 23:24:52,064 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 23:24:52,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:52,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:52,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:52,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:52,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:52,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:52,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:52,098 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 23:24:52,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:52,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:52,100 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 23:24:52,106 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 23:24:52,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:52,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:24:52,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:52,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:52,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:52,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:24:52,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:24:52,117 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 23:24:52,118 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:52,122 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 23:24:52,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:52,125 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 23:24:52,136 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 23:24:52,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:52,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:52,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:52,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:52,152 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 23:24:52,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:52,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:52,176 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:52,189 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-02-09 23:24:52,190 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2024-02-09 23:24:52,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:52,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:52,193 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 23:24:52,196 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 23:24:52,196 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:52,214 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:52,215 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:52,215 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread3Thread1of1ForFork2_k, N) = -1*thread3Thread1of1ForFork2_k + 1*N Supporting invariants [] [2024-02-09 23:24:52,224 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 23:24:52,225 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:52,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:52,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:52,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:52,270 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:52,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:52,289 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 23:24:52,290 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 23:24:52,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 326 states and 1192 transitions. cyclomatic complexity: 942 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:24:52,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 326 states and 1192 transitions. cyclomatic complexity: 942. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 873 states and 3380 transitions. Complement of second has 6 states. [2024-02-09 23:24:52,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 23:24:52,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:24:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2024-02-09 23:24:52,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 5 letters. Loop has 2 letters. [2024-02-09 23:24:52,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:52,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 7 letters. Loop has 2 letters. [2024-02-09 23:24:52,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:52,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 5 letters. Loop has 4 letters. [2024-02-09 23:24:52,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:52,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 873 states and 3380 transitions. [2024-02-09 23:24:52,422 INFO L131 ngComponentsAnalysis]: Automaton has 35 accepting balls. 70 [2024-02-09 23:24:52,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 873 states to 526 states and 2039 transitions. [2024-02-09 23:24:52,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2024-02-09 23:24:52,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 282 [2024-02-09 23:24:52,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 526 states and 2039 transitions. [2024-02-09 23:24:52,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-02-09 23:24:52,433 INFO L218 hiAutomatonCegarLoop]: Abstraction has 526 states and 2039 transitions. [2024-02-09 23:24:52,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states and 2039 transitions. [2024-02-09 23:24:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 420. [2024-02-09 23:24:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 420 states have (on average 3.9452380952380954) internal successors, (1657), 419 states have internal predecessors, (1657), 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 23:24:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1657 transitions. [2024-02-09 23:24:52,469 INFO L240 hiAutomatonCegarLoop]: Abstraction has 420 states and 1657 transitions. [2024-02-09 23:24:52,469 INFO L428 stractBuchiCegarLoop]: Abstraction has 420 states and 1657 transitions. [2024-02-09 23:24:52,469 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 23:24:52,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 420 states and 1657 transitions. [2024-02-09 23:24:52,477 INFO L131 ngComponentsAnalysis]: Automaton has 35 accepting balls. 70 [2024-02-09 23:24:52,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-02-09 23:24:52,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-02-09 23:24:52,478 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-02-09 23:24:52,478 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-02-09 23:24:52,478 INFO L748 eck$LassoCheckResult]: Stem: 2965#[$Ultimate##0]don't care [85] $Ultimate##0-->L18: Formula: (and (< v_ULTIMATE.start_m_3 v_N_7) (<= 0 v_ULTIMATE.start_m_3)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_3, N=v_N_7} AuxVars[] AssignedVars[] 2967#[L18]don't care [106] L18-->$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] 3283#[L18-1, $Ultimate##0]don't care [109] L18-1-->$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] 2947#[$Ultimate##0, L19, $Ultimate##0]don't care [93] $Ultimate##0-->L50: Formula: (= v_thread2Thread1of1ForFork1_cnt_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_cnt=v_thread2Thread1of1ForFork1_cnt_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_cnt] 2953#[L50, L19, $Ultimate##0]don't care [94] L50-->L52-1: Formula: (= v_thread2Thread1of1ForFork1_j_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j] 2795#[L19, $Ultimate##0, L52-1]don't care [2024-02-09 23:24:52,478 INFO L750 eck$LassoCheckResult]: Loop: 2795#[L19, $Ultimate##0, L52-1]don't care [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[] 2799#[L19, L52, $Ultimate##0]don't care [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] 2795#[L19, $Ultimate##0, L52-1]don't care [2024-02-09 23:24:52,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash 110394008, now seen corresponding path program 1 times [2024-02-09 23:24:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:52,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912260835] [2024-02-09 23:24:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:52,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:52,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:52,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:52,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash 4035, now seen corresponding path program 1 times [2024-02-09 23:24:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:52,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013061781] [2024-02-09 23:24:52,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:52,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:52,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:52,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:52,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1285537638, now seen corresponding path program 1 times [2024-02-09 23:24:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:24:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521694415] [2024-02-09 23:24:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:24:52,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:24:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:52,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:24:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:24:52,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:24:52,766 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:24:52,766 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:24:52,766 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:24:52,767 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:24:52,767 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:24:52,767 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:52,767 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:24:52,767 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:24:52,767 INFO L133 ssoRankerPreferences]: Filename of dumped script: motivating-slowitp.bpl_BEv2_Iteration3_Lasso [2024-02-09 23:24:52,767 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:24:52,767 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:24:52,771 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 23:24:52,774 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 23:24:52,872 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 23:24:52,875 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 23:24:52,877 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 23:24:53,065 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:24:53,066 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:24:53,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:53,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:53,068 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 23:24:53,072 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 23:24:53,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:53,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:53,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:53,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:53,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:53,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:53,086 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 23:24:53,096 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:24:53,102 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 23:24:53,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:53,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:53,104 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 23:24:53,108 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 23:24:53,108 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 23:24:53,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:24:53,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:24:53,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:24:53,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:24:53,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-02-09 23:24:53,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-02-09 23:24:53,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:24:53,159 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-02-09 23:24:53,159 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-02-09 23:24:53,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:24:53,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:24:53,163 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 23:24:53,168 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 23:24:53,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:24:53,193 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-02-09 23:24:53,194 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:24:53,194 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_j, N) = -1*thread2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2024-02-09 23:24:53,200 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 23:24:53,201 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:24:53,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:24:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:53,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:24:53,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:24:53,234 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:24:53,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:24:53,246 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 23:24:53,247 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 23:24:53,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 420 states and 1657 transitions. cyclomatic complexity: 1315 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:24:53,315 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 420 states and 1657 transitions. cyclomatic complexity: 1315. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1060 states and 4135 transitions. Complement of second has 6 states. [2024-02-09 23:24:53,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-02-09 23:24:53,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:24:53,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2024-02-09 23:24:53,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 5 letters. Loop has 2 letters. [2024-02-09 23:24:53,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:53,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 7 letters. Loop has 2 letters. [2024-02-09 23:24:53,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:53,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 56 transitions. Stem has 5 letters. Loop has 4 letters. [2024-02-09 23:24:53,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:24:53,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1060 states and 4135 transitions. [2024-02-09 23:24:53,333 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:24:53,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1060 states to 0 states and 0 transitions. [2024-02-09 23:24:53,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-02-09 23:24:53,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-02-09 23:24:53,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-02-09 23:24:53,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-02-09 23:24:53,334 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:53,334 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:53,334 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-02-09 23:24:53,334 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-02-09 23:24:53,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-02-09 23:24:53,334 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-02-09 23:24:53,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-02-09 23:24:53,342 INFO L201 PluginConnector]: Adding new model motivating-slowitp.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:24:53 BoogieIcfgContainer [2024-02-09 23:24:53,342 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:24:53,343 INFO L158 Benchmark]: Toolchain (without parser) took 3304.69ms. Allocated memory was 170.9MB in the beginning and 246.4MB in the end (delta: 75.5MB). Free memory was 107.0MB in the beginning and 89.7MB in the end (delta: 17.3MB). Peak memory consumption was 93.0MB. Max. memory is 8.0GB. [2024-02-09 23:24:53,344 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.79ms. Allocated memory is still 170.9MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:24:53,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.55ms. Allocated memory is still 170.9MB. Free memory was 107.0MB in the beginning and 105.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-02-09 23:24:53,345 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 170.9MB. Free memory was 105.3MB in the beginning and 140.3MB in the end (delta: -35.1MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2024-02-09 23:24:53,348 INFO L158 Benchmark]: RCFGBuilder took 298.40ms. Allocated memory is still 170.9MB. Free memory was 140.3MB in the beginning and 128.3MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-02-09 23:24:53,349 INFO L158 Benchmark]: BuchiAutomizer took 2945.82ms. Allocated memory was 170.9MB in the beginning and 246.4MB in the end (delta: 75.5MB). Free memory was 128.1MB in the beginning and 89.7MB in the end (delta: 38.4MB). Peak memory consumption was 113.6MB. Max. memory is 8.0GB. [2024-02-09 23:24:53,352 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.79ms. Allocated memory is still 170.9MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.55ms. Allocated memory is still 170.9MB. Free memory was 107.0MB in the beginning and 105.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 170.9MB. Free memory was 105.3MB in the beginning and 140.3MB in the end (delta: -35.1MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * RCFGBuilder took 298.40ms. Allocated memory is still 170.9MB. Free memory was 140.3MB in the beginning and 128.3MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2945.82ms. Allocated memory was 170.9MB in the beginning and 246.4MB in the end (delta: 75.5MB). Free memory was 128.1MB in the beginning and 89.7MB in the end (delta: 38.4MB). Peak memory consumption was 113.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. One deterministic module has affine ranking function N + -1 * j and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 201 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 66 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital64 mio100 ax100 hnf100 lsp161 ukn45 mio100 lsp89 div100 bol100 ite100 ukn100 eq146 hnf95 smp100 dnf154 smp78 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 89ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-02-09 23:24:53,373 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 23:24:53,572 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 23:24:53,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...