/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/concurrent_mult.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-?-9ecb849-m [2024-02-09 23:49:17,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-09 23:49:17,781 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 23:49:17,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-09 23:49:17,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-09 23:49:17,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.Only consider context switches at boundaries of atomic blocks [2024-02-09 23:49:17,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-09 23:49:17,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-09 23:49:17,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-09 23:49:17,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-09 23:49:17,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-09 23:49:17,855 INFO L153 SettingsManager]: * Use SBE=true [2024-02-09 23:49:17,855 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-02-09 23:49:17,855 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-02-09 23:49:17,856 INFO L153 SettingsManager]: * Use old map elimination=false [2024-02-09 23:49:17,856 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-02-09 23:49:17,856 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-02-09 23:49:17,856 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-02-09 23:49:17,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-09 23:49:17,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-02-09 23:49:17,857 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-09 23:49:17,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-09 23:49:17,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-09 23:49:17,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-09 23:49:17,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-02-09 23:49:17,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-02-09 23:49:17,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-02-09 23:49:17,862 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-02-09 23:49:17,862 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-09 23:49:17,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-09 23:49:17,863 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-02-09 23:49:17,863 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-09 23:49:17,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-09 23:49:17,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-09 23:49:17,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-09 23:49:17,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-09 23:49:17,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-09 23:49:17,865 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-02-09 23:49:17,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2024-02-09 23:49:18,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-09 23:49:18,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-09 23:49:18,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-09 23:49:18,187 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-02-09 23:49:18,188 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-02-09 23:49:18,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_mult.bpl [2024-02-09 23:49:18,189 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_mult.bpl' [2024-02-09 23:49:18,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-09 23:49:18,215 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-02-09 23:49:18,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-09 23:49:18,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-09 23:49:18,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-09 23:49:18,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,247 INFO L138 Inliner]: procedures = 2, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-02-09 23:49:18,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-09 23:49:18,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-09 23:49:18,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-09 23:49:18,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-09 23:49:18,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-09 23:49:18,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-09 23:49:18,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-09 23:49:18,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-09 23:49:18,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/1) ... [2024-02-09 23:49:18,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:18,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:18,338 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 23:49:18,360 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 23:49:18,386 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mult given in one single declaration [2024-02-09 23:49:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2024-02-09 23:49:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2024-02-09 23:49:18,386 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-02-09 23:49:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-09 23:49:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-09 23:49:18,387 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 23:49:18,428 INFO L236 CfgBuilder]: Building ICFG [2024-02-09 23:49:18,430 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-09 23:49:18,495 INFO L277 CfgBuilder]: Performing block encoding [2024-02-09 23:49:18,500 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-09 23:49:18,500 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-09 23:49:18,502 INFO L201 PluginConnector]: Adding new model concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:49:18 BoogieIcfgContainer [2024-02-09 23:49:18,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-09 23:49:18,503 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-02-09 23:49:18,503 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-02-09 23:49:18,506 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-02-09 23:49:18,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:49:18,507 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 11:49:18" (1/2) ... [2024-02-09 23:49:18,508 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d734a95 and model type concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.02 11:49:18, skipping insertion in model container [2024-02-09 23:49:18,508 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-02-09 23:49:18,508 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 11:49:18" (2/2) ... [2024-02-09 23:49:18,509 INFO L332 chiAutomizerObserver]: Analyzing ICFG concurrent_mult.bpl [2024-02-09 23:49:18,574 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-09 23:49:18,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 68 flow [2024-02-09 23:49:18,614 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2024-02-09 23:49:18,614 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-09 23:49:18,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2024-02-09 23:49:18,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 68 flow [2024-02-09 23:49:18,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2024-02-09 23:49:18,627 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2024-02-09 23:49:18,627 INFO L304 stractBuchiCegarLoop]: Hoare is false [2024-02-09 23:49:18,627 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-02-09 23:49:18,627 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-02-09 23:49:18,627 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-02-09 23:49:18,627 INFO L308 stractBuchiCegarLoop]: Difference is false [2024-02-09 23:49:18,627 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-02-09 23:49:18,628 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2024-02-09 23:49:18,628 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 23 transitions, 58 flow [2024-02-09 23:49:18,640 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:49:18,640 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-02-09 23:49:18,640 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-09 23:49:18,640 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:49:18,643 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-02-09 23:49:18,643 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 23 transitions, 58 flow [2024-02-09 23:49:18,647 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:49:18,647 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-02-09 23:49:18,647 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-09 23:49:18,647 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:49:18,652 INFO L748 eck$LassoCheckResult]: Stem: 34#[$Ultimate##0]true [31] $Ultimate##0-->L17: Formula: (<= 0 v_ULTIMATE.start_x_1) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_1} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_1} AuxVars[] AssignedVars[] 36#[L17]true [25] L17-->L19: Formula: (<= 0 v_ULTIMATE.start_y_1) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_1} OutVars{ULTIMATE.start_y=v_ULTIMATE.start_y_1} AuxVars[] AssignedVars[] 38#[L19]true [52] L19-->$Ultimate##0: Formula: (and (= v_multThread1of1ForFork0_a_6 v_ULTIMATE.start_x_3) (= v_multThread1of1ForFork0_thidvar0_2 1) (= v_multThread1of1ForFork0_b_4 v_ULTIMATE.start_y_3)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3} OutVars{multThread1of1ForFork0_thidvar0=v_multThread1of1ForFork0_thidvar0_2, multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_4, multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_6, ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_8, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_12} AuxVars[] AssignedVars[multThread1of1ForFork0_thidvar0, multThread1of1ForFork0_b, multThread1of1ForFork0_a, multThread1of1ForFork0_z, multThread1of1ForFork0_i] 40#[$Ultimate##0, L19-1]true [36] $Ultimate##0-->L31: Formula: (= v_multThread1of1ForFork0_z_1 0) InVars {} OutVars{multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_1} AuxVars[] AssignedVars[multThread1of1ForFork0_z] 42#[L19-1, L31]true [37] L31-->L32-1: Formula: (= v_multThread1of1ForFork0_i_1 0) InVars {} OutVars{multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_1} AuxVars[] AssignedVars[multThread1of1ForFork0_i] 44#[L32-1, L19-1]true [2024-02-09 23:49:18,653 INFO L750 eck$LassoCheckResult]: Loop: 44#[L32-1, L19-1]true [39] L32-1-->L33: Formula: (< v_multThread1of1ForFork0_i_5 v_multThread1of1ForFork0_a_3) InVars {multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_3, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_5} OutVars{multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_3, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_5} AuxVars[] AssignedVars[] 47#[L19-1, L33]true [41] L33-->L34: Formula: (= v_multThread1of1ForFork0_z_4 (+ v_multThread1of1ForFork0_b_1 v_multThread1of1ForFork0_z_3)) InVars {multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_1, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_3} OutVars{multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_1, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_4} AuxVars[] AssignedVars[multThread1of1ForFork0_z] 49#[L34, L19-1]true [42] L34-->L32-1: Formula: (= v_multThread1of1ForFork0_i_8 (+ v_multThread1of1ForFork0_i_7 1)) InVars {multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_7} OutVars{multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_8} AuxVars[] AssignedVars[multThread1of1ForFork0_i] 44#[L32-1, L19-1]true [2024-02-09 23:49:18,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:18,659 INFO L85 PathProgramCache]: Analyzing trace with hash 58054202, now seen corresponding path program 1 times [2024-02-09 23:49:18,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:49:18,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096752038] [2024-02-09 23:49:18,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:49:18,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:49:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:18,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:49:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:18,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:49:18,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash 68583, now seen corresponding path program 1 times [2024-02-09 23:49:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:49:18,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450734084] [2024-02-09 23:49:18,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:49:18,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:49:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:18,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:49:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:18,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:49:18,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1379049714, now seen corresponding path program 1 times [2024-02-09 23:49:18,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:49:18,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222663897] [2024-02-09 23:49:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:49:18,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:49:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:18,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:49:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:18,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:49:18,845 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:49:18,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:49:18,846 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:49:18,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:49:18,846 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 23:49:18,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:18,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:49:18,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:49:18,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration1_Loop [2024-02-09 23:49:18,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:49:18,847 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:49:18,859 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 23:49:18,872 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 23:49:18,910 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:49:18,911 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 23:49:18,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:18,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:18,920 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 23:49:18,921 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 23:49:18,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:49:18,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:49:18,953 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 23:49:18,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:18,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:18,955 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 23:49:18,959 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 23:49:18,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:49:18,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:49:19,104 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 23:49:19,107 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 23:49:19,108 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:49:19,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:49:19,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:49:19,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:49:19,108 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:49:19,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:19,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:49:19,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:49:19,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration1_Loop [2024-02-09 23:49:19,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:49:19,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:49:19,110 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 23:49:19,119 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 23:49:19,158 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:49:19,162 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:49:19,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:19,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:19,220 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 23:49:19,222 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 23:49:19,223 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 23:49:19,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:49:19,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:49:19,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:49:19,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:49:19,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:49:19,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:49:19,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:49:19,254 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:49:19,270 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 23:49:19,271 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 23:49:19,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:19,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:19,278 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 23:49:19,283 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:49:19,283 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-02-09 23:49:19,283 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:49:19,284 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(multThread1of1ForFork0_i, multThread1of1ForFork0_a) = -1*multThread1of1ForFork0_i + 1*multThread1of1ForFork0_a Supporting invariants [] [2024-02-09 23:49:19,286 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 23:49:19,290 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 23:49:19,294 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:49:19,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:49:19,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:49:19,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:49:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:49:19,364 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-09 23:49:19,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:49:19,394 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 23:49:19,425 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 23:49:19,430 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:49:19,531 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 335 transitions.6 powerset states3 rank states. The highest rank that occured is 1 [2024-02-09 23:49:19,532 INFO L89 BuchiIntersect]: Starting Intersection [2024-02-09 23:49:19,533 INFO L72 uchiIntersectDefault]: Starting Basic Intersection [2024-02-09 23:49:19,542 INFO L85 uchiIntersectDefault]: Exiting Basic Intersection [2024-02-09 23:49:19,542 INFO L99 BuchiIntersect]: Exiting Intersection [2024-02-09 23:49:19,548 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 23:49:19,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-09 23:49:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-02-09 23:49:19,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 5 letters. Loop has 3 letters. [2024-02-09 23:49:19,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:49:19,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 8 letters. Loop has 3 letters. [2024-02-09 23:49:19,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:49:19,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 129 transitions. Stem has 5 letters. Loop has 6 letters. [2024-02-09 23:49:19,582 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 23:49:19,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:49:19,583 INFO L428 stractBuchiCegarLoop]: Abstraction has has 46 places, 566 transitions, 2546 flow [2024-02-09 23:49:19,583 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-02-09 23:49:19,584 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 566 transitions, 2546 flow [2024-02-09 23:49:19,663 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-09 23:49:19,665 INFO L124 PetriNetUnfolderBase]: 114/200 cut-off events. [2024-02-09 23:49:19,666 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-02-09 23:49:19,666 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2024-02-09 23:49:19,667 INFO L748 eck$LassoCheckResult]: Stem: 34#[$Ultimate##0]true [31] $Ultimate##0-->L17: Formula: (<= 0 v_ULTIMATE.start_x_1) InVars {ULTIMATE.start_x=v_ULTIMATE.start_x_1} OutVars{ULTIMATE.start_x=v_ULTIMATE.start_x_1} AuxVars[] AssignedVars[] 36#[L17]true [25] L17-->L19: Formula: (<= 0 v_ULTIMATE.start_y_1) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_1} OutVars{ULTIMATE.start_y=v_ULTIMATE.start_y_1} AuxVars[] AssignedVars[] 38#[L19]true [52] L19-->$Ultimate##0: Formula: (and (= v_multThread1of1ForFork0_a_6 v_ULTIMATE.start_x_3) (= v_multThread1of1ForFork0_thidvar0_2 1) (= v_multThread1of1ForFork0_b_4 v_ULTIMATE.start_y_3)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3} OutVars{multThread1of1ForFork0_thidvar0=v_multThread1of1ForFork0_thidvar0_2, multThread1of1ForFork0_b=v_multThread1of1ForFork0_b_4, multThread1of1ForFork0_a=v_multThread1of1ForFork0_a_6, ULTIMATE.start_y=v_ULTIMATE.start_y_3, ULTIMATE.start_x=v_ULTIMATE.start_x_3, multThread1of1ForFork0_z=v_multThread1of1ForFork0_z_8, multThread1of1ForFork0_i=v_multThread1of1ForFork0_i_12} AuxVars[] AssignedVars[multThread1of1ForFork0_thidvar0, multThread1of1ForFork0_b, multThread1of1ForFork0_a, multThread1of1ForFork0_z, multThread1of1ForFork0_i] 40#[$Ultimate##0, L19-1]true [55] L19-1-->$Ultimate##0: Formula: (and (= 2 v_multThread1of1ForFork1_thidvar1_2) (= 2 v_multThread1of1ForFork1_thidvar0_2) (= v_multThread1of1ForFork1_a_6 v_ULTIMATE.start_y_5) (= v_multThread1of1ForFork1_b_4 v_ULTIMATE.start_x_5)) InVars {ULTIMATE.start_y=v_ULTIMATE.start_y_5, ULTIMATE.start_x=v_ULTIMATE.start_x_5} OutVars{multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_4, multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_6, multThread1of1ForFork1_thidvar0=v_multThread1of1ForFork1_thidvar0_2, multThread1of1ForFork1_thidvar1=v_multThread1of1ForFork1_thidvar1_2, ULTIMATE.start_y=v_ULTIMATE.start_y_5, ULTIMATE.start_x=v_ULTIMATE.start_x_5, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_8, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_12} AuxVars[] AssignedVars[multThread1of1ForFork1_b, multThread1of1ForFork1_a, multThread1of1ForFork1_thidvar0, multThread1of1ForFork1_thidvar1, multThread1of1ForFork1_z, multThread1of1ForFork1_i] 124#[$Ultimate##0, $Ultimate##0, L20]true [43] $Ultimate##0-->L31: Formula: (= v_multThread1of1ForFork1_z_1 0) InVars {} OutVars{multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_1} AuxVars[] AssignedVars[multThread1of1ForFork1_z] 126#[$Ultimate##0, L20, L31]true [44] L31-->L32-1: Formula: (= v_multThread1of1ForFork1_i_1 0) InVars {} OutVars{multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_1} AuxVars[] AssignedVars[multThread1of1ForFork1_i] 128#[L32-1, $Ultimate##0, L20]true [46] L32-1-->L33: Formula: (< v_multThread1of1ForFork1_i_5 v_multThread1of1ForFork1_a_3) InVars {multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_3, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_5} OutVars{multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_3, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_5} AuxVars[] AssignedVars[] 130#[$Ultimate##0, L33, L20]true [48] L33-->L34: Formula: (= (+ v_multThread1of1ForFork1_b_1 v_multThread1of1ForFork1_z_3) v_multThread1of1ForFork1_z_4) InVars {multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_1, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_3} OutVars{multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_1, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_4} AuxVars[] AssignedVars[multThread1of1ForFork1_z] 132#[$Ultimate##0, L34, L20]true [49] L34-->L32-1: Formula: (= v_multThread1of1ForFork1_i_8 (+ v_multThread1of1ForFork1_i_7 1)) InVars {multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_7} OutVars{multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_8} AuxVars[] AssignedVars[multThread1of1ForFork1_i] 128#[L32-1, $Ultimate##0, L20]true [2024-02-09 23:49:19,667 INFO L750 eck$LassoCheckResult]: Loop: 128#[L32-1, $Ultimate##0, L20]true [46] L32-1-->L33: Formula: (< v_multThread1of1ForFork1_i_5 v_multThread1of1ForFork1_a_3) InVars {multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_3, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_5} OutVars{multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_3, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_5} AuxVars[] AssignedVars[] 130#[$Ultimate##0, L33, L20]true [48] L33-->L34: Formula: (= (+ v_multThread1of1ForFork1_b_1 v_multThread1of1ForFork1_z_3) v_multThread1of1ForFork1_z_4) InVars {multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_1, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_3} OutVars{multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_1, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_4} AuxVars[] AssignedVars[multThread1of1ForFork1_z] 132#[$Ultimate##0, L34, L20]true [49] L34-->L32-1: Formula: (= v_multThread1of1ForFork1_i_8 (+ v_multThread1of1ForFork1_i_7 1)) InVars {multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_7} OutVars{multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_8} AuxVars[] AssignedVars[multThread1of1ForFork1_i] 128#[L32-1, $Ultimate##0, L20]true [46] L32-1-->L33: Formula: (< v_multThread1of1ForFork1_i_5 v_multThread1of1ForFork1_a_3) InVars {multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_3, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_5} OutVars{multThread1of1ForFork1_a=v_multThread1of1ForFork1_a_3, multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_5} AuxVars[] AssignedVars[] 130#[$Ultimate##0, L33, L20]true [48] L33-->L34: Formula: (= (+ v_multThread1of1ForFork1_b_1 v_multThread1of1ForFork1_z_3) v_multThread1of1ForFork1_z_4) InVars {multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_1, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_3} OutVars{multThread1of1ForFork1_b=v_multThread1of1ForFork1_b_1, multThread1of1ForFork1_z=v_multThread1of1ForFork1_z_4} AuxVars[] AssignedVars[multThread1of1ForFork1_z] 132#[$Ultimate##0, L34, L20]true [49] L34-->L32-1: Formula: (= v_multThread1of1ForFork1_i_8 (+ v_multThread1of1ForFork1_i_7 1)) InVars {multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_7} OutVars{multThread1of1ForFork1_i=v_multThread1of1ForFork1_i_8} AuxVars[] AssignedVars[multThread1of1ForFork1_i] 128#[L32-1, $Ultimate##0, L20]true [2024-02-09 23:49:19,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:19,668 INFO L85 PathProgramCache]: Analyzing trace with hash 748780816, now seen corresponding path program 1 times [2024-02-09 23:49:19,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:49:19,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609748712] [2024-02-09 23:49:19,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:49:19,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:49:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:19,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:49:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:19,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:49:19,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:19,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2044688159, now seen corresponding path program 1 times [2024-02-09 23:49:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:49:19,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504154071] [2024-02-09 23:49:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:49:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:49:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:19,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:49:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:19,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:49:19,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:19,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2054012592, now seen corresponding path program 2 times [2024-02-09 23:49:19,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-09 23:49:19,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892702775] [2024-02-09 23:49:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-09 23:49:19,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-09 23:49:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:19,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-09 23:49:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-09 23:49:19,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-09 23:49:19,794 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:49:19,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:49:19,795 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:49:19,795 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:49:19,795 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2024-02-09 23:49:19,795 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:19,795 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:49:19,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:49:19,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration2_Loop [2024-02-09 23:49:19,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:49:19,795 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:49:19,797 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 23:49:19,801 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 23:49:19,828 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:49:19,828 INFO L404 LassoAnalysis]: Checking for nontermination... [2024-02-09 23:49:19,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:19,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:19,830 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 23:49:19,839 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 23:49:19,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:49:19,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:49:19,849 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2024-02-09 23:49:19,850 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multThread1of1ForFork1_b=0, multThread1of1ForFork1_z=0} Honda state: {multThread1of1ForFork1_b=0, multThread1of1ForFork1_z=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-02-09 23:49:19,855 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 23:49:19,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:19,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:19,857 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 23:49:19,858 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 23:49:19,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-02-09 23:49:19,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:49:19,886 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 23:49:19,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:19,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:19,888 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 23:49:19,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-02-09 23:49:19,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-02-09 23:49:19,923 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 23:49:20,006 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-02-09 23:49:20,010 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 23:49:20,011 INFO L210 LassoAnalysis]: Preferences: [2024-02-09 23:49:20,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2024-02-09 23:49:20,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-02-09 23:49:20,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2024-02-09 23:49:20,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2024-02-09 23:49:20,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:20,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2024-02-09 23:49:20,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2024-02-09 23:49:20,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: concurrent_mult.bpl_BEv2_Iteration2_Loop [2024-02-09 23:49:20,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2024-02-09 23:49:20,011 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2024-02-09 23:49:20,013 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 23:49:20,027 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 23:49:20,060 INFO L294 LassoAnalysis]: Preprocessing complete. [2024-02-09 23:49:20,060 INFO L490 LassoAnalysis]: Using template 'affine'. [2024-02-09 23:49:20,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:20,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:20,061 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 23:49:20,072 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 23:49:20,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:49:20,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:49:20,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:49:20,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:49:20,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:49:20,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:49:20,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:49:20,085 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 23:49:20,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-02-09 23:49:20,098 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 23:49:20,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:20,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:20,100 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 23:49:20,105 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 23:49:20,107 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 23:49:20,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-02-09 23:49:20,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-02-09 23:49:20,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-02-09 23:49:20,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-02-09 23:49:20,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-02-09 23:49:20,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-02-09 23:49:20,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-02-09 23:49:20,131 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-02-09 23:49:20,134 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-02-09 23:49:20,134 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-02-09 23:49:20,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-02-09 23:49:20,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-09 23:49:20,137 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-02-09 23:49:20,145 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-02-09 23:49:20,145 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-02-09 23:49:20,145 INFO L513 LassoAnalysis]: Proved termination. [2024-02-09 23:49:20,145 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(multThread1of1ForFork1_a, multThread1of1ForFork1_i) = 1*multThread1of1ForFork1_a - 1*multThread1of1ForFork1_i Supporting invariants [] [2024-02-09 23:49:20,152 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 23:49:20,152 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 23:49:20,153 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-02-09 23:49:20,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2024-02-09 23:49:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:49:20,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-09 23:49:20,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:49:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-09 23:49:20,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2024-02-09 23:49:20,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-09 23:49:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-09 23:49:20,266 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-02-09 23:49:20,266 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 23:49:20,356 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 8 states and 310 transitions.5 powerset states3 rank states. The highest rank that occured is 1 [2024-02-09 23:49:20,357 INFO L89 BuchiIntersect]: Starting Intersection [2024-02-09 23:49:20,357 INFO L72 uchiIntersectDefault]: Starting Basic Intersection [2024-02-09 23:49:20,427 INFO L85 uchiIntersectDefault]: Exiting Basic Intersection [2024-02-09 23:49:20,427 INFO L99 BuchiIntersect]: Exiting Intersection [2024-02-09 23:49:20,428 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 23:49:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 23:49:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-02-09 23:49:20,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 9 letters. Loop has 6 letters. [2024-02-09 23:49:20,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:49:20,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 15 letters. Loop has 6 letters. [2024-02-09 23:49:20,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:49:20,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 9 letters. Loop has 12 letters. [2024-02-09 23:49:20,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-02-09 23:49:20,432 INFO L428 stractBuchiCegarLoop]: Abstraction has has 62 places, 12856 transitions, 83124 flow [2024-02-09 23:49:20,432 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-02-09 23:49:20,432 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 62 places, 12856 transitions, 83124 flow [2024-02-09 23:49:20,936 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 23:49:21,855 INFO L124 PetriNetUnfolderBase]: 2446/3594 cut-off events. [2024-02-09 23:49:21,855 INFO L125 PetriNetUnfolderBase]: For 228/228 co-relation queries the response was YES. [2024-02-09 23:49:21,855 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2024-02-09 23:49:21,863 INFO L201 PluginConnector]: Adding new model concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.02 11:49:21 BoogieIcfgContainer [2024-02-09 23:49:21,863 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-02-09 23:49:21,867 INFO L158 Benchmark]: Toolchain (without parser) took 3648.30ms. Allocated memory was 166.7MB in the beginning and 307.2MB in the end (delta: 140.5MB). Free memory was 124.5MB in the beginning and 200.3MB in the end (delta: -75.8MB). Peak memory consumption was 173.3MB. Max. memory is 8.0GB. [2024-02-09 23:49:21,868 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 166.7MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:49:21,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.92ms. Allocated memory is still 166.7MB. Free memory was 124.5MB in the beginning and 122.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2024-02-09 23:49:21,869 INFO L158 Benchmark]: Boogie Preprocessor took 28.60ms. Allocated memory is still 166.7MB. Free memory was 122.9MB in the beginning and 134.8MB in the end (delta: -11.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2024-02-09 23:49:21,869 INFO L158 Benchmark]: RCFGBuilder took 222.42ms. Allocated memory is still 166.7MB. Free memory was 134.8MB in the beginning and 135.5MB in the end (delta: -741.7kB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2024-02-09 23:49:21,869 INFO L158 Benchmark]: BuchiAutomizer took 3360.22ms. Allocated memory was 166.7MB in the beginning and 307.2MB in the end (delta: 140.5MB). Free memory was 135.3MB in the beginning and 200.3MB in the end (delta: -64.9MB). Peak memory consumption was 185.3MB. Max. memory is 8.0GB. [2024-02-09 23:49:21,874 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 0.12ms. Allocated memory is still 166.7MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.92ms. Allocated memory is still 166.7MB. Free memory was 124.5MB in the beginning and 122.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 28.60ms. Allocated memory is still 166.7MB. Free memory was 122.9MB in the beginning and 134.8MB in the end (delta: -11.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 222.42ms. Allocated memory is still 166.7MB. Free memory was 134.8MB in the beginning and 135.5MB in the end (delta: -741.7kB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3360.22ms. Allocated memory was 166.7MB in the beginning and 307.2MB in the end (delta: 140.5MB). Free memory was 135.3MB in the beginning and 200.3MB in the end (delta: -64.9MB). Peak memory consumption was 185.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + a and consists of 5 locations. One deterministic module has affine ranking function -1 * i + a and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 1. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 145 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 126 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 120ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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 23:49:21,899 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...