/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/parallel/misc-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:38:33,247 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:38:33,307 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 17:38:33,332 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:38:33,333 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:38:33,333 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:38:33,334 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:38:33,334 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:38:33,335 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:38:33,338 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:38:33,338 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:38:33,338 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:38:33,338 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:38:33,339 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:38:33,340 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:38:33,340 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:38:33,340 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:38:33,340 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:38:33,341 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:38:33,341 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:38:33,341 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:38:33,342 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:38:33,342 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:38:33,342 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:38:33,343 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:38:33,343 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:38:33,343 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:38:33,343 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:38:33,343 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:38:33,343 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:38:33,344 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:38:33,344 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:38:33,344 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:38:33,345 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:38:33,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:38:33,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:38:33,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:38:33,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:38:33,553 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:38:33,553 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:38:33,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl [2023-10-12 17:38:33,555 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl' [2023-10-12 17:38:33,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:38:33,579 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:38:33,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:38:33,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:38:33,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:38:33,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,597 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:38:33,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:38:33,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:38:33,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:38:33,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:38:33,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:38:33,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:38:33,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:38:33,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:38:33,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/1) ... [2023-10-12 17:38:33,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:33,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:33,654 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 17:38:33,686 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 17:38:33,701 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:38:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:38:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:38:33,701 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:38:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:38:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:38:33,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:38:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:38:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:38:33,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:38:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:38:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:38:33,703 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 17:38:33,734 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:38:33,735 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:38:33,804 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:38:33,829 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:38:33,829 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:38:33,830 INFO L201 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:38:33 BoogieIcfgContainer [2023-10-12 17:38:33,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:38:33,831 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:38:33,831 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:38:33,834 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:38:33,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:38:33,834 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:38:33" (1/2) ... [2023-10-12 17:38:33,835 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b980d9 and model type misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:38:33, skipping insertion in model container [2023-10-12 17:38:33,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:38:33,835 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:38:33" (2/2) ... [2023-10-12 17:38:33,836 INFO L332 chiAutomizerObserver]: Analyzing ICFG misc-5.wvr.bpl [2023-10-12 17:38:33,886 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:38:33,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 76 flow [2023-10-12 17:38:33,915 INFO L124 PetriNetUnfolderBase]: 2/20 cut-off events. [2023-10-12 17:38:33,915 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:38:33,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 20 events. 2/20 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2023-10-12 17:38:33,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 26 transitions, 76 flow [2023-10-12 17:38:33,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 20 transitions, 58 flow [2023-10-12 17:38:33,922 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:38:33,932 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 20 transitions, 58 flow [2023-10-12 17:38:33,933 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 20 transitions, 58 flow [2023-10-12 17:38:33,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 20 transitions, 58 flow [2023-10-12 17:38:33,938 INFO L124 PetriNetUnfolderBase]: 2/20 cut-off events. [2023-10-12 17:38:33,938 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:38:33,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 20 events. 2/20 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2023-10-12 17:38:33,939 INFO L119 LiptonReduction]: Number of co-enabled transitions 104 [2023-10-12 17:38:34,061 INFO L134 LiptonReduction]: Checked pairs total: 143 [2023-10-12 17:38:34,061 INFO L136 LiptonReduction]: Total number of compositions: 4 [2023-10-12 17:38:34,070 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:38:34,070 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:38:34,070 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:38:34,070 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:38:34,071 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:38:34,071 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:38:34,071 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:38:34,071 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:38:34,071 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 24 places, 16 transitions, 50 flow [2023-10-12 17:38:34,076 ERROR L47 etriNetUnfolderRabin]: [1:1A:[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[][10], 2:2A:[88] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0][7]][3:3A:[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[][1], 4:4A:[73] L18-->L25: Formula: (or (and (= v_pos_Out_2 (+ v_pos_In_1 1)) (= v_c1_Out_2 (+ v_c1_In_1 1))) (and (< 0 v_c1_In_1) (= v_c1_In_1 (+ v_c1_Out_2 1)) (= v_pos_In_1 (+ v_pos_Out_2 1)))) InVars {pos=v_pos_In_1, c1=v_c1_In_1} OutVars{pos=v_pos_Out_2, c1=v_c1_Out_2} AuxVars[] AssignedVars[c1, pos][3]] [2023-10-12 17:38:34,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:38:34,079 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:38:34,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:38:34,080 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:38:34,082 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:38:34,082 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 24 places, 16 transitions, 50 flow [2023-10-12 17:38:34,083 ERROR L47 etriNetUnfolderRabin]: [1:1A:[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[][10], 2:2A:[88] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0][7]][3:3A:[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[][1], 4:4A:[73] L18-->L25: Formula: (or (and (= v_pos_Out_2 (+ v_pos_In_1 1)) (= v_c1_Out_2 (+ v_c1_In_1 1))) (and (< 0 v_c1_In_1) (= v_c1_In_1 (+ v_c1_Out_2 1)) (= v_pos_In_1 (+ v_pos_Out_2 1)))) InVars {pos=v_pos_In_1, c1=v_c1_In_1} OutVars{pos=v_pos_Out_2, c1=v_c1_Out_2} AuxVars[] AssignedVars[c1, pos][3]] [2023-10-12 17:38:34,083 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:38:34,083 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:38:34,083 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:38:34,083 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:38:34,086 INFO L748 eck$LassoCheckResult]: Stem: 35#[$Ultimate##0]true [63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[] 37#[L64]true [88] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0] 39#[L64-1, L25]true [2023-10-12 17:38:34,086 INFO L750 eck$LassoCheckResult]: Loop: 39#[L64-1, L25]true [71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[] 42#[L64-1, L18]true [73] L18-->L25: Formula: (or (and (= v_pos_Out_2 (+ v_pos_In_1 1)) (= v_c1_Out_2 (+ v_c1_In_1 1))) (and (< 0 v_c1_In_1) (= v_c1_In_1 (+ v_c1_Out_2 1)) (= v_pos_In_1 (+ v_pos_Out_2 1)))) InVars {pos=v_pos_In_1, c1=v_c1_In_1} OutVars{pos=v_pos_Out_2, c1=v_c1_Out_2} AuxVars[] AssignedVars[c1, pos] 39#[L64-1, L25]true [2023-10-12 17:38:34,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:34,089 INFO L85 PathProgramCache]: Analyzing trace with hash 3002, now seen corresponding path program 1 times [2023-10-12 17:38:34,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:34,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41738374] [2023-10-12 17:38:34,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:34,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:34,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash 3235, now seen corresponding path program 1 times [2023-10-12 17:38:34,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435492918] [2023-10-12 17:38:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:34,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:34,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:38:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2887196, now seen corresponding path program 1 times [2023-10-12 17:38:34,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:38:34,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364719196] [2023-10-12 17:38:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:38:34,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:38:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:38:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:38:34,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:38:34,349 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:38:34,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:38:34,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:38:34,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:38:34,350 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:38:34,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:38:34,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:38:34,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:38:34,351 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:38:34,351 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:38:34,363 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 17:38:34,371 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 17:38:34,484 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:38:34,484 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:38:34,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,494 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 17:38:34,495 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 17:38:34,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:38:34,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:34,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:38:34,512 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_1=1} Honda state: {v_rep(ite v_assert 1 0)_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:38:34,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:38:34,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,519 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 17:38:34,520 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 17:38:34,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:38:34,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:34,534 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 17:38:34,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,536 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 17:38:34,538 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 17:38:34,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:38:34,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:34,572 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:38:34,572 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0, c1=0} Honda state: {pos=0, c1=0} Generalized eigenvectors: [{pos=0, c1=0}, {pos=1, c1=1}, {pos=0, c1=0}] Lambdas: [12, 1, 13] Nus: [0, 1] [2023-10-12 17:38:34,595 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 17:38:34,631 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:38:34,632 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:38:34,632 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:38:34,632 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:38:34,632 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:38:34,632 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,632 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:38:34,632 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:38:34,632 INFO L133 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:38:34,632 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:38:34,632 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:38:34,634 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 17:38:34,637 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 17:38:34,641 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 17:38:34,673 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 17:38:34,779 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:38:34,779 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:38:34,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,780 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 17:38:34,861 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 17:38:34,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:38:34,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:34,876 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:38:34,876 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c2=0} Honda state: {c2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:38:34,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-10-12 17:38:34,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,897 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 17:38:34,898 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 17:38:34,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:38:34,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:34,931 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:38:34,931 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_2=1} Honda state: {v_rep(ite v_assert 1 0)_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:38:34,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:38:34,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,936 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 17:38:34,947 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 17:38:34,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:38:34,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:34,983 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 17:38:34,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:34,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:34,984 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 17:38:35,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:38:35,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:35,025 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 17:38:35,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:38:35,052 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0, c1=0} Honda state: {pos=0, c1=0} Generalized eigenvectors: [{pos=-2, c1=1}, {pos=-2, c1=1}, {pos=5, c1=-1}] Lambdas: [0, 1, 1] Nus: [1, 0] [2023-10-12 17:38:35,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-10-12 17:38:35,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:38:35,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:38:35,060 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 17:38:35,062 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 17:38:35,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:38:35,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:38:35,086 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:38:35,086 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork2_thidvar0=0} Honda state: {thread1Thread1of1ForFork2_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:38:35,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:38:35,100 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] [2023-10-12 17:38:35,102 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] [2023-10-12 17:38:35,103 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] [2023-10-12 17:38:35,115 INFO L201 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:38:35 BoogieIcfgContainer [2023-10-12 17:38:35,115 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:38:35,116 INFO L158 Benchmark]: Toolchain (without parser) took 1536.87ms. Allocated memory was 173.0MB in the beginning and 238.0MB in the end (delta: 65.0MB). Free memory was 121.3MB in the beginning and 171.1MB in the end (delta: -49.8MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2023-10-12 17:38:35,118 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 173.0MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:38:35,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.57ms. Allocated memory is still 173.0MB. Free memory was 121.1MB in the beginning and 119.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:38:35,122 INFO L158 Benchmark]: Boogie Preprocessor took 13.29ms. Allocated memory is still 173.0MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:38:35,122 INFO L158 Benchmark]: RCFGBuilder took 217.18ms. Allocated memory is still 173.0MB. Free memory was 118.4MB in the beginning and 107.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:38:35,123 INFO L158 Benchmark]: BuchiAutomizer took 1284.00ms. Allocated memory was 173.0MB in the beginning and 238.0MB in the end (delta: 65.0MB). Free memory was 107.5MB in the beginning and 171.1MB in the end (delta: -63.6MB). Peak memory consumption was 2.6MB. Max. memory is 8.0GB. [2023-10-12 17:38:35,127 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 0.25ms. Allocated memory is still 173.0MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.57ms. Allocated memory is still 173.0MB. Free memory was 121.1MB in the beginning and 119.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.29ms. Allocated memory is still 173.0MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 217.18ms. Allocated memory is still 173.0MB. Free memory was 118.4MB in the beginning and 107.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 1284.00ms. Allocated memory was 173.0MB in the beginning and 238.0MB in the end (delta: 65.0MB). Free memory was 107.5MB in the beginning and 171.1MB in the end (delta: -63.6MB). Peak memory consumption was 2.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 1 iterations. TraceHistogramMax:0. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital35 mio100 ax100 hnf100 lsp193 ukn53 mio100 lsp100 div100 bol100 ite100 ukn100 eq194 hnf98 smp100 dnf142 smp53 tf102 neg100 sie103 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. [2023-10-12 17:38:35,135 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] [2023-10-12 17:38:35,135 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] [2023-10-12 17:38:35,135 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] [2023-10-12 17:38:35,135 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier7,QUANTIFIED] [2023-10-12 17:38:35,136 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier8,QUANTIFIED] [2023-10-12 17:38:35,136 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier9,QUANTIFIED] Nontermination argument in form of an infinite execution State at position 0 is {c1=0, c2=0, freshIdentifier7=0, (if v_assert then 1 else 0)=1, pos=0} State at position 1 is {c1=0, c2=0, freshIdentifier8=1, (if v_assert then 1 else 0)=1, pos=0} For i>1, the state at position i is {c1=0 + sum_{k=0}^i 1*0^k + 1 + 1*k*0^(k-1) + -1, c2=0 + sum_{k=0}^i 0, freshIdentifier9=1 + sum_{k=0}^i 0, (if v_assert then 1 else 0)=1 + sum_{k=0}^i 0, pos=0 + sum_{k=0}^i -2*0^k + -2 + -2*k*0^(k-1) + 5} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [0, 1, 1] Mus: [1, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L63] 0 assume (pos == c1 && pos == c2 && pos == 0) && v_assert == true; [L64] FORK 0 fork 1 thread1(); Loop: [L17] COND TRUE v_assert [L20] pos := pos + 1; [L21] c1 := c1 + 1; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 28 PlacesBefore, 24 PlacesAfterwards, 20 TransitionsBefore, 16 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 143 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 121, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 87, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 87, independent: 71, independent conditional: 0, independent unconditional: 71, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 87, unknown conditional: 0, unknown unconditional: 87] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be incorrect! [2023-10-12 17:38:35,146 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...