/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:37:46,527 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:37:46,571 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:37:46,585 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:37:46,585 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:37:46,586 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:37:46,586 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:37:46,587 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:37:46,587 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:37:46,587 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:37:46,587 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:37:46,588 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:37:46,588 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:37:46,588 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:37:46,588 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:37:46,589 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:37:46,589 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:37:46,589 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:37:46,589 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:37:46,590 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:37:46,590 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:37:46,601 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:37:46,601 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:37:46,601 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:37:46,601 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:37:46,602 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:37:46,602 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:37:46,602 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:37:46,602 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:37:46,602 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:37:46,603 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:37:46,603 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:37:46,603 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:37:46,604 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:37:46,604 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:37:46,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:37:46,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:37:46,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:37:46,796 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:37:46,797 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:37:46,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl [2023-10-12 17:37:46,797 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl' [2023-10-12 17:37:46,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:37:46,824 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:37:46,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:37:46,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:37:46,825 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:37:46,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,842 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:37:46,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:37:46,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:37:46,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:37:46,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:37:46,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:37:46,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:37:46,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:37:46,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:37:46,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/1) ... [2023-10-12 17:37:46,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:46,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:46,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:46,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:37:46,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:37:46,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:37:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:37:46,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:37:46,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:37:46,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:37:46,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:37:46,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:37:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:37:46,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:37:46,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:37:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:37:46,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:37:46,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:37:46,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:37:46,914 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:37:46,963 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:37:46,965 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:37:47,093 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:37:47,097 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:37:47,098 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:37:47,099 INFO L201 PluginConnector]: Adding new model exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:37:47 BoogieIcfgContainer [2023-10-12 17:37:47,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:37:47,100 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:37:47,100 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:37:47,123 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:37:47,124 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:37:47,124 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:37:46" (1/2) ... [2023-10-12 17:37:47,125 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d188c1 and model type exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:37:47, skipping insertion in model container [2023-10-12 17:37:47,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:37:47,125 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:37:47" (2/2) ... [2023-10-12 17:37:47,126 INFO L332 chiAutomizerObserver]: Analyzing ICFG exp2x3.wvr.bpl [2023-10-12 17:37:47,222 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:37:47,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:37:47,297 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:37:47,298 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:37:47,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:37:47,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 106 flow [2023-10-12 17:37:47,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2023-10-12 17:37:47,306 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:37:47,349 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:37:47,351 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 82 flow [2023-10-12 17:37:47,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 82 flow [2023-10-12 17:37:47,379 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2023-10-12 17:37:47,379 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:37:47,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:37:47,383 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:37:47,656 INFO L134 LiptonReduction]: Checked pairs total: 222 [2023-10-12 17:37:47,660 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:37:47,678 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:37:47,678 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:37:47,678 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:37:47,678 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:37:47,678 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:37:47,678 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:37:47,678 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:37:47,678 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:37:47,679 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:37:47,681 ERROR L47 etriNetUnfolderRabin]: [1:1A:[62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[][6], 2:2A:[97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0][0]][3:3A:[103] L18-->L18: Formula: (and (= v_x1_9 (* 2 v_x1_10)) (< v_x1_10 v_n_11)) InVars {n=v_n_11, x1=v_x1_10} OutVars{n=v_n_11, x1=v_x1_9} AuxVars[] AssignedVars[x1][10]] [2023-10-12 17:37:47,682 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:47,682 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:37:47,682 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:47,683 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:47,684 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:37:47,698 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:37:47,699 ERROR L47 etriNetUnfolderRabin]: [1:1A:[62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[][6], 2:2A:[97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0][0]][3:3A:[103] L18-->L18: Formula: (and (= v_x1_9 (* 2 v_x1_10)) (< v_x1_10 v_n_11)) InVars {n=v_n_11, x1=v_x1_10} OutVars{n=v_n_11, x1=v_x1_9} AuxVars[] AssignedVars[x1][10]] [2023-10-12 17:37:47,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:47,700 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:37:47,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:47,700 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:47,703 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [2023-10-12 17:37:47,703 INFO L750 eck$LassoCheckResult]: Loop: 50#[L18, L51-1]true [103] L18-->L18: Formula: (and (= v_x1_9 (* 2 v_x1_10)) (< v_x1_10 v_n_11)) InVars {n=v_n_11, x1=v_x1_10} OutVars{n=v_n_11, x1=v_x1_9} AuxVars[] AssignedVars[x1] 50#[L18, L51-1]true [2023-10-12 17:37:47,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:47,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2980, now seen corresponding path program 1 times [2023-10-12 17:37:47,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:47,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77582654] [2023-10-12 17:37:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:47,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:47,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:47,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:47,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:47,770 INFO L85 PathProgramCache]: Analyzing trace with hash 134, now seen corresponding path program 1 times [2023-10-12 17:37:47,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:47,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641367981] [2023-10-12 17:37:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:47,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:47,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:47,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:47,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:47,779 INFO L85 PathProgramCache]: Analyzing trace with hash 92483, now seen corresponding path program 1 times [2023-10-12 17:37:47,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:47,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675558079] [2023-10-12 17:37:47,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:47,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:47,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:47,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:47,955 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:47,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:47,963 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:47,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:47,963 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:37:47,963 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:47,963 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:47,963 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:47,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:37:47,964 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:47,964 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:47,974 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:47,994 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:48,021 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:48,103 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:48,103 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:37:48,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:48,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:48,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:48,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:37:48,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:48,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:48,278 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:48,278 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x4=4, x3=4} Honda state: {x4=4, x3=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:48,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:48,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:48,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:48,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:48,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:37:48,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:48,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:48,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:48,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:48,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:48,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:37:48,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:37:48,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:48,429 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:37:48,433 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 [2023-10-12 17:37:48,434 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:48,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:48,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:48,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:48,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:48,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:48,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:48,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:48,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:37:48,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:48,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:48,436 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:48,460 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:48,474 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:48,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:48,532 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:48,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:48,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:48,536 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:48,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:37:48,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:48,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:48,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:48,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:48,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:48,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:48,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:48,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:48,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:48,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:48,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:48,597 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:48,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:37:48,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:48,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:48,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:48,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:48,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:48,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:48,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:48,629 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:48,635 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:37:48,635 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:37:48,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:48,640 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:48,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:37:48,673 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:48,692 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:37:48,692 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:48,693 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, n) = -1*x1 + 1*n Supporting invariants [1*x1 - 1 >= 0] [2023-10-12 17:37:48,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:37:48,703 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:37:48,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:48,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:37:48,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:48,753 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:37:48,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:37:48,784 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:37:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2023-10-12 17:37:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:37:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2023-10-12 17:37:48,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:37:48,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:48,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:37:48,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:48,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:37:48,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:48,993 INFO L430 stractBuchiCegarLoop]: Abstraction has has 35 places, 133 transitions, 700 flow [2023-10-12 17:37:48,993 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:37:48,993 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 35 places, 133 transitions, 700 flow [2023-10-12 17:37:48,994 ERROR L47 etriNetUnfolderRabin]: [1:1A:[62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[][42], 2:2A:[97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0][2], 4:3A:[88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0][19]][5:4A:[111] L26-->L26: Formula: (and (< v_x2_14 v_n_23) (= v_x2_13 (* 2 v_x2_14))) InVars {n=v_n_23, x2=v_x2_14} OutVars{n=v_n_23, x2=v_x2_13} AuxVars[] AssignedVars[x2][80]] [2023-10-12 17:37:48,995 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:48,995 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-10-12 17:37:48,995 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:37:48,995 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:48,995 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 99#[L18, L52, L26]true [2023-10-12 17:37:48,995 INFO L750 eck$LassoCheckResult]: Loop: 99#[L18, L52, L26]true [111] L26-->L26: Formula: (and (< v_x2_14 v_n_23) (= v_x2_13 (* 2 v_x2_14))) InVars {n=v_n_23, x2=v_x2_14} OutVars{n=v_n_23, x2=v_x2_13} AuxVars[] AssignedVars[x2] 99#[L18, L52, L26]true [2023-10-12 17:37:48,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:48,997 INFO L85 PathProgramCache]: Analyzing trace with hash 92468, now seen corresponding path program 1 times [2023-10-12 17:37:48,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:48,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700463672] [2023-10-12 17:37:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:48,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:49,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:49,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:49,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:49,014 INFO L85 PathProgramCache]: Analyzing trace with hash 142, now seen corresponding path program 1 times [2023-10-12 17:37:49,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:49,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515244109] [2023-10-12 17:37:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:49,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:49,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:49,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:49,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2866619, now seen corresponding path program 1 times [2023-10-12 17:37:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:49,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187445735] [2023-10-12 17:37:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:49,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:49,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:49,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:49,091 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:49,091 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:49,091 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:49,091 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:49,091 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:37:49,091 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,091 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:49,091 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:49,091 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:37:49,091 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:49,091 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:49,092 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,095 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,099 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,151 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:49,151 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:37:49,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,153 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:37:49,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:49,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:49,168 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:49,168 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork3_thidvar0=0} Honda state: {thread1Thread1of1ForFork3_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:49,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,174 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:37:49,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:49,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:49,221 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:49,221 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:49,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,241 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:37:49,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:49,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:49,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:49,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:49,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:37:49,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:49,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:49,295 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:49,296 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x3=4, x4=4} Honda state: {x3=4, x4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:49,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,313 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:37:49,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:49,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:49,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,383 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:37:49,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:37:49,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:49,462 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:37:49,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,469 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:49,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:49,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:49,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:49,469 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:49,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:49,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:49,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:37:49,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:49,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:49,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,473 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:49,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,541 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:49,541 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:49,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,562 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:37:49,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:49,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:49,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:49,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:49,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:49,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:49,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:49,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:49,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,621 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:37:49,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:49,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:49,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:49,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:49,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:49,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:49,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:49,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:49,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,674 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:37:49,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:49,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:49,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:49,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:49,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:49,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:49,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:49,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:49,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,728 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:37:49,732 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:49,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:49,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:49,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:49,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:49,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:49,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:49,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:49,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,778 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:37:49,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:49,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:49,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:49,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:49,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:49,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:49,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:49,840 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:49,846 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:37:49,846 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:37:49,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:49,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:49,848 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:49,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:37:49,851 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:49,872 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:37:49,872 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:49,872 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, n) = -1*x2 + 1*n Supporting invariants [1*x2 - 1 >= 0] [2023-10-12 17:37:49,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:49,878 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:37:49,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:49,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:37:49,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:49,936 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:37:49,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:37:49,937 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:37:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2023-10-12 17:37:50,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:37:50,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2023-10-12 17:37:50,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:37:50,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:50,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:37:50,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:50,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:37:50,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:50,087 INFO L430 stractBuchiCegarLoop]: Abstraction has has 42 places, 931 transitions, 6762 flow [2023-10-12 17:37:50,087 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:37:50,087 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 42 places, 931 transitions, 6762 flow [2023-10-12 17:37:50,090 ERROR L47 etriNetUnfolderRabin]: [1:1A:[62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[][298], 2:2A:[97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0][20], 4:3A:[88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0][139], 9:4A:[91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2][365]][10:5A:[109] L34-->L34: Formula: (and (= (* 2 v_x3_14) v_x3_13) (< v_x3_14 v_n_19)) InVars {n=v_n_19, x3=v_x3_14} OutVars{n=v_n_19, x3=v_x3_13} AuxVars[] AssignedVars[x3][856]] [2023-10-12 17:37:50,090 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:50,091 INFO L124 PetriNetUnfolderBase]: 3/9 cut-off events. [2023-10-12 17:37:50,091 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:37:50,091 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:50,091 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 99#[L18, L52, L26]true [91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 147#[L18, L34, L26, L53]true [2023-10-12 17:37:50,091 INFO L750 eck$LassoCheckResult]: Loop: 147#[L18, L34, L26, L53]true [109] L34-->L34: Formula: (and (= (* 2 v_x3_14) v_x3_13) (< v_x3_14 v_n_19)) InVars {n=v_n_19, x3=v_x3_14} OutVars{n=v_n_19, x3=v_x3_13} AuxVars[] AssignedVars[x3] 147#[L18, L34, L26, L53]true [2023-10-12 17:37:50,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:50,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2866599, now seen corresponding path program 1 times [2023-10-12 17:37:50,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:50,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98834809] [2023-10-12 17:37:50,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:50,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:50,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:50,098 INFO L85 PathProgramCache]: Analyzing trace with hash 140, now seen corresponding path program 1 times [2023-10-12 17:37:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:50,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312538369] [2023-10-12 17:37:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:50,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:50,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:50,102 INFO L85 PathProgramCache]: Analyzing trace with hash 88864678, now seen corresponding path program 1 times [2023-10-12 17:37:50,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:50,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899245209] [2023-10-12 17:37:50,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:50,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:50,166 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:50,166 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:50,166 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:50,166 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:50,167 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:37:50,167 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,167 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:50,167 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:50,167 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:37:50,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:50,167 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:50,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,171 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,174 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,176 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,185 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,189 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,191 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:50,256 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:37:50,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,267 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:37:50,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:50,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:50,293 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:50,293 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:50,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,301 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:50,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:50,316 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:50,316 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:50,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-10-12 17:37:50,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,323 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-10-12 17:37:50,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:50,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:50,348 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:50,348 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:50,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,356 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-10-12 17:37:50,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:50,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:50,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,387 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-10-12 17:37:50,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:37:50,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:50,463 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:37:50,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,469 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:50,470 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:50,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:50,470 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:50,470 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:50,470 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:50,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:50,470 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:37:50,470 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:50,470 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:50,471 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,474 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,491 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:50,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:50,563 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:50,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,564 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-10-12 17:37:50,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:50,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:50,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:50,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:50,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:50,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:50,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:50,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:50,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-10-12 17:37:50,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,590 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-10-12 17:37:50,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:50,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:50,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:50,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:50,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:50,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:50,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:50,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:37:50,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,621 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-10-12 17:37:50,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:50,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:50,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:50,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:50,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:50,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:50,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:50,640 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:50,644 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:37:50,644 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:37:50,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:50,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:50,647 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:50,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-10-12 17:37:50,649 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:50,656 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:37:50,656 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:50,656 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, n) = -1*x3 + 1*n Supporting invariants [1*x3 - 1 >= 0] [2023-10-12 17:37:50,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,664 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:37:50,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:50,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2023-10-12 17:37:50,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:50,709 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:37:50,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:37:50,710 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:37:50,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2023-10-12 17:37:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2023-10-12 17:37:50,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2023-10-12 17:37:50,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:37:50,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:50,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:37:50,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:50,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:37:50,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:50,894 INFO L430 stractBuchiCegarLoop]: Abstraction has has 49 places, 6517 transitions, 60368 flow [2023-10-12 17:37:50,894 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:37:50,894 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 49 places, 6517 transitions, 60368 flow [2023-10-12 17:37:50,917 ERROR L47 etriNetUnfolderRabin]: [1:1A:[62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[][2088], 2:2A:[97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0][143], 4:3A:[88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0][976], 9:4A:[91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2][2558], 26:5A:[94] L53-->L42: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1][2909]][27:6A:[107] L42-->L42: Formula: (and (= v_x4_13 (* 2 v_x4_14)) (< v_x4_14 v_n_15)) InVars {n=v_n_15, x4=v_x4_14} OutVars{n=v_n_15, x4=v_x4_13} AuxVars[] AssignedVars[x4][4277]] [2023-10-12 17:37:50,917 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:37:50,917 INFO L124 PetriNetUnfolderBase]: 14/26 cut-off events. [2023-10-12 17:37:50,917 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-10-12 17:37:50,917 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:37:50,918 INFO L748 eck$LassoCheckResult]: Stem: 46#[$Ultimate##0]true [62] $Ultimate##0-->L51: Formula: (and (< 0 v_x1_5) (< 0 v_x3_1) (= v_x4_1 v_x3_1) (= v_x2_5 v_x1_5)) InVars {x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} OutVars{x1=v_x1_5, x4=v_x4_1, x2=v_x2_5, x3=v_x3_1} AuxVars[] AssignedVars[] 48#[L51]true [97] L51-->L18: Formula: (= v_thread1Thread1of1ForFork3_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork3_thidvar0=v_thread1Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork3_thidvar0] 50#[L18, L51-1]true [88] L51-1-->L26: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 99#[L18, L52, L26]true [91] L52-->L34: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 147#[L18, L34, L26, L53]true [94] L53-->L42: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1] 199#[L54, L42, L18, L34, L26]true [2023-10-12 17:37:50,918 INFO L750 eck$LassoCheckResult]: Loop: 199#[L54, L42, L18, L34, L26]true [107] L42-->L42: Formula: (and (= v_x4_13 (* 2 v_x4_14)) (< v_x4_14 v_n_15)) InVars {n=v_n_15, x4=v_x4_14} OutVars{n=v_n_15, x4=v_x4_13} AuxVars[] AssignedVars[x4] 199#[L54, L42, L18, L34, L26]true [2023-10-12 17:37:50,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:50,918 INFO L85 PathProgramCache]: Analyzing trace with hash 88864663, now seen corresponding path program 1 times [2023-10-12 17:37:50,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:50,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350376491] [2023-10-12 17:37:50,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:50,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:50,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:50,925 INFO L85 PathProgramCache]: Analyzing trace with hash 138, now seen corresponding path program 1 times [2023-10-12 17:37:50,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:50,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680516708] [2023-10-12 17:37:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:50,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:50,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:50,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1540162636, now seen corresponding path program 1 times [2023-10-12 17:37:50,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:37:50,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954097219] [2023-10-12 17:37:50,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:37:50,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:37:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:37:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:37:50,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:37:51,011 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:51,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:51,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:51,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:51,012 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:37:51,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:51,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:51,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:37:51,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:51,012 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:51,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,015 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,027 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,030 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,033 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,035 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,038 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,047 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,130 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:51,131 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:37:51,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:51,132 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:51,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-10-12 17:37:51,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:51,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:51,156 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:51,157 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:51,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-10-12 17:37:51,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:51,161 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:51,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-10-12 17:37:51,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:51,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:51,174 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:37:51,174 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar1=0} Honda state: {thread3Thread1of1ForFork1_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:37:51,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:51,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:51,181 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:51,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-10-12 17:37:51,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:37:51,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:51,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:51,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:51,210 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:51,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-10-12 17:37:51,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:37:51,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:37:51,281 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:37:51,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:51,285 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:37:51,285 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:37:51,285 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:37:51,285 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:37:51,285 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:37:51,285 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:37:51,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:37:51,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: exp2x3.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:37:51,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:37:51,285 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:37:51,286 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,311 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,315 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,323 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:37:51,398 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:37:51,398 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:37:51,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:51,400 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:51,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-10-12 17:37:51,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:37:51,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:37:51,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:37:51,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:37:51,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:37:51,422 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:37:51,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:37:51,435 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:37:51,441 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:37:51,441 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:37:51,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:37:51,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:37:51,442 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:37:51,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-10-12 17:37:51,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:37:51,453 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-10-12 17:37:51,453 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:37:51,453 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x4, n) = -1*x4 + 1*n Supporting invariants [1*x4 - 1 >= 0] [2023-10-12 17:37:51,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:51,468 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:37:51,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:37:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:51,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:37:51,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:37:51,521 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:37:51,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:37:51,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:37:51,522 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-10-12 17:37:51,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-10-12 17:37:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2023-10-12 17:37:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:37:51,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 244 transitions. [2023-10-12 17:37:51,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:37:51,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:51,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 6 letters. Loop has 1 letters. [2023-10-12 17:37:51,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:51,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 244 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:37:51,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:37:51,975 INFO L430 stractBuchiCegarLoop]: Abstraction has has 56 places, 45619 transitions, 513814 flow [2023-10-12 17:37:51,975 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:37:51,975 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 56 places, 45619 transitions, 513814 flow [2023-10-12 17:37:53,217 INFO L124 PetriNetUnfolderBase]: 350/460 cut-off events. [2023-10-12 17:37:53,217 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-10-12 17:37:53,217 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:37:53,221 INFO L201 PluginConnector]: Adding new model exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:37:53 BoogieIcfgContainer [2023-10-12 17:37:53,221 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:37:53,222 INFO L158 Benchmark]: Toolchain (without parser) took 6398.04ms. Allocated memory was 188.7MB in the beginning and 291.5MB in the end (delta: 102.8MB). Free memory was 139.1MB in the beginning and 158.6MB in the end (delta: -19.5MB). Peak memory consumption was 183.6MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,222 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 188.7MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:37:53,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.88ms. Allocated memory is still 188.7MB. Free memory was 138.9MB in the beginning and 137.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,222 INFO L158 Benchmark]: Boogie Preprocessor took 14.33ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 136.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,222 INFO L158 Benchmark]: RCFGBuilder took 239.75ms. Allocated memory is still 188.7MB. Free memory was 136.4MB in the beginning and 155.2MB in the end (delta: -18.8MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,223 INFO L158 Benchmark]: BuchiAutomizer took 6121.81ms. Allocated memory was 188.7MB in the beginning and 291.5MB in the end (delta: 102.8MB). Free memory was 154.9MB in the beginning and 158.6MB in the end (delta: -3.7MB). Peak memory consumption was 199.2MB. Max. memory is 8.0GB. [2023-10-12 17:37:53,223 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 0.24ms. Allocated memory is still 188.7MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.88ms. Allocated memory is still 188.7MB. Free memory was 138.9MB in the beginning and 137.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.33ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 136.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 239.75ms. Allocated memory is still 188.7MB. Free memory was 136.4MB in the beginning and 155.2MB in the end (delta: -18.8MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. * BuchiAutomizer took 6121.81ms. Allocated memory was 188.7MB in the beginning and 291.5MB in the end (delta: 102.8MB). Free memory was 154.9MB in the beginning and 158.6MB in the end (delta: -3.7MB). Peak memory consumption was 199.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + n and consists of 6 locations. One deterministic module has affine ranking function n + -1 * x2 and consists of 6 locations. One deterministic module has affine ranking function -1 * x3 + n and consists of 6 locations. One deterministic module has affine ranking function -1 * x4 + n and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 3.0s. Construction of modules took 0.4s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 511 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 511 mSDsluCounter, 636 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 296 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 792 IncrementalHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 340 mSDtfsCounter, 792 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital37 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf92 smp100 dnf100 smp100 tf100 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 38 PlacesBefore, 28 PlacesAfterwards, 29 TransitionsBefore, 19 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 222, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 168, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 168, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 222, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 168, unknown conditional: 0, unknown unconditional: 168] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:37:53,234 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...