/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 BUCHI_AUTOMATON -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:13:27,285 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:13:27,334 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 17:13:27,347 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:13:27,348 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:13:27,348 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:13:27,349 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:13:27,349 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:13:27,349 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:13:27,350 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:13:27,350 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:13:27,350 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:13:27,350 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:13:27,351 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:13:27,351 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:13:27,351 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:13:27,351 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:13:27,351 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:13:27,352 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:13:27,352 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:13:27,352 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:13:27,353 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:13:27,353 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:13:27,353 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:13:27,353 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:13:27,353 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:13:27,353 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:13:27,354 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:13:27,354 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:13:27,354 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:13:27,354 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:13:27,354 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:13:27,355 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:13:27,355 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:13:27,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:13:27,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:13:27,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:13:27,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:13:27,518 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:13:27,519 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:13:27,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2023-10-12 17:13:27,520 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2023-10-12 17:13:27,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:13:27,541 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:13:27,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:27,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:13:27,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:13:27,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,560 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:13:27,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:27,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:13:27,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:13:27,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:13:27,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:13:27,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:13:27,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:13:27,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:13:27,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/1) ... [2023-10-12 17:13:27,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:27,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:27,609 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 17:13:27,660 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 17:13:27,675 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:13:27,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:13:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:13:27,675 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:13:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:13:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:13:27,676 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:13:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:13:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:13:27,676 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:13:27,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:13:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:13:27,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:13:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:13:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:13:27,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2023-10-12 17:13:27,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-10-12 17:13:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-10-12 17:13:27,677 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2023-10-12 17:13:27,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-10-12 17:13:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-10-12 17:13:27,679 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 17:13:27,730 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:13:27,732 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:13:27,869 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:13:27,878 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:13:27,878 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-10-12 17:13:27,879 INFO L201 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:27 BoogieIcfgContainer [2023-10-12 17:13:27,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:13:27,880 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:13:27,880 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:13:27,883 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:13:27,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:27,884 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:13:27" (1/2) ... [2023-10-12 17:13:27,885 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@150ac73f and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:13:27, skipping insertion in model container [2023-10-12 17:13:27,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:27,885 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:27" (2/2) ... [2023-10-12 17:13:27,895 INFO L332 chiAutomizerObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2023-10-12 17:13:28,017 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-10-12 17:13:28,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 230 flow [2023-10-12 17:13:28,080 INFO L124 PetriNetUnfolderBase]: 8/61 cut-off events. [2023-10-12 17:13:28,081 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:13:28,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 61 events. 8/61 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 180 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2023-10-12 17:13:28,085 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 79 transitions, 230 flow [2023-10-12 17:13:28,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 61 transitions, 170 flow [2023-10-12 17:13:28,094 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:13:28,112 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 61 transitions, 170 flow [2023-10-12 17:13:28,114 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 61 transitions, 170 flow [2023-10-12 17:13:28,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 61 transitions, 170 flow [2023-10-12 17:13:28,136 INFO L124 PetriNetUnfolderBase]: 8/61 cut-off events. [2023-10-12 17:13:28,136 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-10-12 17:13:28,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 61 events. 8/61 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 180 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2023-10-12 17:13:28,139 INFO L119 LiptonReduction]: Number of co-enabled transitions 1888 [2023-10-12 17:13:28,234 INFO L134 LiptonReduction]: Checked pairs total: 7686 [2023-10-12 17:13:28,234 INFO L136 LiptonReduction]: Total number of compositions: 3 [2023-10-12 17:13:28,247 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:13:28,247 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:13:28,247 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:13:28,247 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:13:28,247 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:13:28,247 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:13:28,247 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:13:28,247 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:13:28,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:13:29,201 INFO L131 ngComponentsAnalysis]: Automaton has 105 accepting balls. 10752 [2023-10-12 17:13:29,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:29,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:29,206 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:29,206 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-10-12 17:13:29,206 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:13:29,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 10819 states, but on-demand construction may add more states [2023-10-12 17:13:29,374 INFO L131 ngComponentsAnalysis]: Automaton has 105 accepting balls. 10752 [2023-10-12 17:13:29,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:29,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:29,375 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:29,375 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-10-12 17:13:29,379 INFO L748 eck$LassoCheckResult]: Stem: 87#[$Ultimate##0]don't care [97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[] 90#[L116]don't care [186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0] 92#[L116-1, $Ultimate##0]don't care [130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2] 94#[L116-1, L59]don't care [198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 98#[L29, L63, L116-1]don't care [2023-10-12 17:13:29,379 INFO L750 eck$LassoCheckResult]: Loop: 98#[L29, L63, L116-1]don't care [137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4] 106#[L31, L63, L116-1]don't care [138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0] 122#[L32, L63, L116-1]don't care [139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2] 160#[L63, L116-1, L33]don't care [140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[] 224#[L63, L116-1, L34]don't care [141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5] 328#[L35, L63, L116-1]don't care [142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1] 486#[L36, L63, L116-1]don't care [143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2] 734#[L37, L63, L116-1]don't care [144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[] 98#[L29, L63, L116-1]don't care [2023-10-12 17:13:29,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:29,383 INFO L85 PathProgramCache]: Analyzing trace with hash 3996222, now seen corresponding path program 1 times [2023-10-12 17:13:29,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:29,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872232595] [2023-10-12 17:13:29,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:29,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:29,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:29,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:29,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:29,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1526064251, now seen corresponding path program 1 times [2023-10-12 17:13:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:29,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361071870] [2023-10-12 17:13:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:29,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:29,657 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 17:13:29,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:13:29,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361071870] [2023-10-12 17:13:29,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361071870] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:13:29,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:13:29,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-10-12 17:13:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223070582] [2023-10-12 17:13:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:13:29,666 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-10-12 17:13:29,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:13:29,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:13:29,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:13:29,710 INFO L87 Difference]: Start difference. First operand currently 10819 states, but on-demand construction may add more states Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-10-12 17:13:29,874 INFO L93 Difference]: Finished difference Result 12899 states and 51686 transitions. [2023-10-12 17:13:29,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12899 states and 51686 transitions. [2023-10-12 17:13:30,256 INFO L131 ngComponentsAnalysis]: Automaton has 179 accepting balls. 12672 [2023-10-12 17:13:30,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12899 states to 12829 states and 51420 transitions. [2023-10-12 17:13:30,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12829 [2023-10-12 17:13:30,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12829 [2023-10-12 17:13:30,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12829 states and 51420 transitions. [2023-10-12 17:13:30,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:30,619 INFO L219 hiAutomatonCegarLoop]: Abstraction has 12829 states and 51420 transitions. [2023-10-12 17:13:30,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12829 states and 51420 transitions. [2023-10-12 17:13:31,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12829 to 12829. [2023-10-12 17:13:31,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12829 states, 12829 states have (on average 4.0081066334086835) internal successors, (51420), 12828 states have internal predecessors, (51420), 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 17:13:31,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12829 states to 12829 states and 51420 transitions. [2023-10-12 17:13:31,186 INFO L241 hiAutomatonCegarLoop]: Abstraction has 12829 states and 51420 transitions. [2023-10-12 17:13:31,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:13:31,191 INFO L430 stractBuchiCegarLoop]: Abstraction has 12829 states and 51420 transitions. [2023-10-12 17:13:31,191 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:13:31,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12829 states and 51420 transitions. [2023-10-12 17:13:31,285 INFO L131 ngComponentsAnalysis]: Automaton has 179 accepting balls. 12672 [2023-10-12 17:13:31,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:31,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:31,286 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:13:31,286 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-10-12 17:13:31,286 INFO L748 eck$LassoCheckResult]: Stem: 55679#[$Ultimate##0]don't care [97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[] 54095#[L116]don't care [186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0] 54097#[L116-1, $Ultimate##0]don't care [130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2] 54807#[L116-1, L59]don't care [198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 55387#[L29, L63, L116-1]don't care [201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 55615#[L64, L116-1, L29, L44]don't care [2023-10-12 17:13:31,286 INFO L750 eck$LassoCheckResult]: Loop: 55615#[L64, L116-1, L29, L44]don't care [146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6] 56101#[L64, L29, L116-1, L46]don't care [147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1] 56091#[L64, L47, L116-1, L29]don't care [148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3] 54743#[L64, L29, L116-1, L48]don't care [149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[] 54595#[L64, L116-1, L29, L49]don't care [150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7] 54597#[L64, L29, L116-1, L50]don't care [151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0] 46599#[L64, L116-1, L29, L51]don't care [152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3] 46603#[L64, L29, L116-1, L52]don't care [153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[] 55615#[L64, L116-1, L29, L44]don't care [2023-10-12 17:13:31,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 1 times [2023-10-12 17:13:31,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:31,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803716328] [2023-10-12 17:13:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:31,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:31,291 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:31,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:31,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash 938176517, now seen corresponding path program 1 times [2023-10-12 17:13:31,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:31,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959220509] [2023-10-12 17:13:31,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:31,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:31,308 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 17:13:31,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:13:31,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959220509] [2023-10-12 17:13:31,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959220509] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:13:31,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:13:31,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-10-12 17:13:31,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878218267] [2023-10-12 17:13:31,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:13:31,309 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-10-12 17:13:31,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:13:31,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:13:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:13:31,310 INFO L87 Difference]: Start difference. First operand 12829 states and 51420 transitions. cyclomatic complexity: 38770 Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:13:31,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-10-12 17:13:31,498 INFO L93 Difference]: Finished difference Result 12529 states and 48645 transitions. [2023-10-12 17:13:31,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12529 states and 48645 transitions. [2023-10-12 17:13:31,625 INFO L131 ngComponentsAnalysis]: Automaton has 241 accepting balls. 12240 [2023-10-12 17:13:31,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12529 states to 12453 states and 48313 transitions. [2023-10-12 17:13:31,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12453 [2023-10-12 17:13:31,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12453 [2023-10-12 17:13:31,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12453 states and 48313 transitions. [2023-10-12 17:13:31,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:31,923 INFO L219 hiAutomatonCegarLoop]: Abstraction has 12453 states and 48313 transitions. [2023-10-12 17:13:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12453 states and 48313 transitions. [2023-10-12 17:13:32,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12453 to 12453. [2023-10-12 17:13:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12453 states, 12453 states have (on average 3.8796273990203165) internal successors, (48313), 12452 states have internal predecessors, (48313), 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 17:13:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12453 states to 12453 states and 48313 transitions. [2023-10-12 17:13:32,361 INFO L241 hiAutomatonCegarLoop]: Abstraction has 12453 states and 48313 transitions. [2023-10-12 17:13:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:13:32,362 INFO L430 stractBuchiCegarLoop]: Abstraction has 12453 states and 48313 transitions. [2023-10-12 17:13:32,362 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:32,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12453 states and 48313 transitions. [2023-10-12 17:13:32,458 INFO L131 ngComponentsAnalysis]: Automaton has 241 accepting balls. 12240 [2023-10-12 17:13:32,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:32,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:32,459 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:13:32,459 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-10-12 17:13:32,459 INFO L748 eck$LassoCheckResult]: Stem: 94038#[$Ultimate##0]don't care [97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[] 92358#[L116]don't care [186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0] 92360#[L116-1, $Ultimate##0]don't care [130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2] 93108#[L116-1, L59]don't care [198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 93726#[L29, L63, L116-1]don't care [201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 93970#[L64, L116-1, L29, L44]don't care [2023-10-12 17:13:32,459 INFO L750 eck$LassoCheckResult]: Loop: 93970#[L64, L116-1, L29, L44]don't care [146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6] 94504#[L64, L29, L116-1, L46]don't care [137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4] 95056#[L64, L116-1, L46, L31]don't care [147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1] 94494#[L64, L47, L116-1, L31]don't care [148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3] 93038#[L64, L116-1, L48, L31]don't care [149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[] 79482#[L64, L116-1, L49, L31]don't care [150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7] 79484#[L64, L116-1, L31, L50]don't care [151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0] 84706#[L64, L116-1, L31, L51]don't care [138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0] 91024#[L64, L32, L116-1, L51]don't care [139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2] 85356#[L64, L116-1, L33, L51]don't care [140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[] 82254#[L64, L116-1, L34, L51]don't care [141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5] 76140#[L64, L116-1, L35, L51]don't care [142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1] 93522#[L64, L116-1, L36, L51]don't care [143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2] 94614#[L64, L116-1, L37, L51]don't care [152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3] 95988#[L64, L116-1, L52, L37]don't care [144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[] 95982#[L64, L29, L116-1, L52]don't care [153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[] 93970#[L64, L116-1, L29, L44]don't care [2023-10-12 17:13:32,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 2 times [2023-10-12 17:13:32,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:32,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21491901] [2023-10-12 17:13:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:32,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:32,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:32,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:32,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:32,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1395145343, now seen corresponding path program 1 times [2023-10-12 17:13:32,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:32,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827494042] [2023-10-12 17:13:32,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:32,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:32,571 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:32,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:32,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1023918133, now seen corresponding path program 1 times [2023-10-12 17:13:32,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:32,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10290707] [2023-10-12 17:13:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:32,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:32,607 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 17:13:32,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:13:32,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10290707] [2023-10-12 17:13:32,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10290707] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:13:32,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:13:32,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-10-12 17:13:32,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852295827] [2023-10-12 17:13:32,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:13:32,677 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:32,678 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:32,678 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:32,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:32,678 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:13:32,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:32,678 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:32,678 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:32,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:13:32,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:32,678 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:32,688 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 17:13:32,697 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 17:13:32,703 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 17:13:32,706 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 17:13:32,757 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:32,757 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:13:32,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:32,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:32,775 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 17:13:32,786 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 17:13:32,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:32,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:32,820 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 17:13:32,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:32,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:32,823 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 17:13:32,825 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 17:13:32,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:32,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:32,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:32,955 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=4, temp_7=4, x_0=5} Honda state: {temp_4=4, temp_7=4, x_0=5} Generalized eigenvectors: [{temp_4=0, temp_7=0, x_0=0}, {temp_4=0, temp_7=0, x_0=0}, {temp_4=1, temp_7=1, x_0=1}] Lambdas: [12, 8, 1] Nus: [1, 0] [2023-10-12 17:13:32,961 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 17:13:32,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:32,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:32,962 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 17:13:32,964 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 17:13:32,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:32,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:32,995 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 17:13:32,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:32,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:32,997 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 17:13:33,000 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 17:13:33,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:33,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:33,633 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:33,633 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_6=2, y_1=0, temp_5=6} Honda state: {temp_6=2, y_1=0, temp_5=6} Generalized eigenvectors: [{temp_6=0, y_1=0, temp_5=-8}, {temp_6=-3, y_1=1, temp_5=2}, {temp_6=1, y_1=1, temp_5=1}] Lambdas: [0, 0, 1] Nus: [0, 1] [2023-10-12 17:13:33,636 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 17:13:33,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,638 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 17:13:33,640 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 17:13:33,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:33,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:33,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:33,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f2_3 1 0)_1=0} Honda state: {v_rep(ite f2_3 1 0)_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:33,655 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 17:13:33,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,657 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 17:13:33,659 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 17:13:33,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:33,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:33,688 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 17:13:33,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,689 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 17:13:33,690 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 17:13:33,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:33,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:33,708 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:13:33,711 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 17:13:33,712 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:33,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:33,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:33,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:33,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:33,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:33,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:33,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:13:33,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:33,712 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:33,713 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 17:13:33,720 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 17:13:33,722 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 17:13:33,727 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 17:13:33,779 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:33,782 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:33,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,797 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 17:13:33,841 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 17:13:33,842 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 17:13:33,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:33,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:13:33,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:33,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:33,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:33,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:13:33,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:13:33,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:33,870 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 17:13:33,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,872 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 17:13:33,873 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 17:13:33,875 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 17:13:33,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:33,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:13:33,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:33,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:33,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:33,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:13:33,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:13:33,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:33,908 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 17:13:33,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,923 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 17:13:33,925 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 17:13:33,926 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 17:13:33,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:33,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:13:33,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:33,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:33,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:33,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:13:33,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:13:33,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:33,946 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 17:13:33,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,947 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 17:13:33,949 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 17:13:33,951 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 17:13:33,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:33,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:13:33,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:33,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:33,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:33,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:13:33,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:13:33,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:33,992 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:13:33,992 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:13:33,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:33,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:33,995 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 17:13:33,996 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 17:13:33,998 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:33,998 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:13:33,998 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:33,998 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(ite f1_2 1 0)_2) = 1*v_rep(ite f1_2 1 0)_2 Supporting invariants [] [2023-10-12 17:13:34,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-10-12 17:13:34,004 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:34,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:34,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:34,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:34,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:34,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:34,106 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 17:13:34,109 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-10-12 17:13:34,110 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12453 states and 48313 transitions. cyclomatic complexity: 36101 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 17:13:34,316 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 17:13:34,710 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12453 states and 48313 transitions. cyclomatic complexity: 36101. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40206 states and 163093 transitions. Complement of second has 7 states. [2023-10-12 17:13:34,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 17:13:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2023-10-12 17:13:34,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 174 transitions. Stem has 5 letters. Loop has 16 letters. [2023-10-12 17:13:34,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:34,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 174 transitions. Stem has 21 letters. Loop has 16 letters. [2023-10-12 17:13:34,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:34,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 174 transitions. Stem has 5 letters. Loop has 32 letters. [2023-10-12 17:13:34,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:34,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40206 states and 163093 transitions. [2023-10-12 17:13:35,353 INFO L131 ngComponentsAnalysis]: Automaton has 791 accepting balls. 22800 [2023-10-12 17:13:35,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40206 states to 36663 states and 146891 transitions. [2023-10-12 17:13:35,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24454 [2023-10-12 17:13:35,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28102 [2023-10-12 17:13:35,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36663 states and 146891 transitions. [2023-10-12 17:13:35,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:35,866 INFO L219 hiAutomatonCegarLoop]: Abstraction has 36663 states and 146891 transitions. [2023-10-12 17:13:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36663 states and 146891 transitions. [2023-10-12 17:13:36,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36663 to 29423. [2023-10-12 17:13:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29423 states, 29423 states have (on average 4.0400027189613565) internal successors, (118869), 29422 states have internal predecessors, (118869), 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 17:13:37,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29423 states to 29423 states and 118869 transitions. [2023-10-12 17:13:37,079 INFO L241 hiAutomatonCegarLoop]: Abstraction has 29423 states and 118869 transitions. [2023-10-12 17:13:37,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:13:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:13:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:13:37,080 INFO L87 Difference]: Start difference. First operand 29423 states and 118869 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 17:13:37,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-10-12 17:13:37,513 INFO L93 Difference]: Finished difference Result 23723 states and 95901 transitions. [2023-10-12 17:13:37,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23723 states and 95901 transitions. [2023-10-12 17:13:37,869 INFO L131 ngComponentsAnalysis]: Automaton has 528 accepting balls. 15400 [2023-10-12 17:13:38,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23723 states to 20901 states and 82589 transitions. [2023-10-12 17:13:38,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16762 [2023-10-12 17:13:38,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17402 [2023-10-12 17:13:38,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20901 states and 82589 transitions. [2023-10-12 17:13:38,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:38,477 INFO L219 hiAutomatonCegarLoop]: Abstraction has 20901 states and 82589 transitions. [2023-10-12 17:13:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20901 states and 82589 transitions. [2023-10-12 17:13:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20901 to 17047. [2023-10-12 17:13:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17047 states, 17047 states have (on average 3.9522496626972488) internal successors, (67374), 17046 states have internal predecessors, (67374), 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 17:13:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17047 states to 17047 states and 67374 transitions. [2023-10-12 17:13:38,928 INFO L241 hiAutomatonCegarLoop]: Abstraction has 17047 states and 67374 transitions. [2023-10-12 17:13:38,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:13:38,930 INFO L430 stractBuchiCegarLoop]: Abstraction has 17047 states and 67374 transitions. [2023-10-12 17:13:38,930 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:13:38,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17047 states and 67374 transitions. [2023-10-12 17:13:39,018 INFO L131 ngComponentsAnalysis]: Automaton has 393 accepting balls. 12808 [2023-10-12 17:13:39,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:39,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:39,023 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-10-12 17:13:39,023 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-10-12 17:13:39,023 INFO L748 eck$LassoCheckResult]: Stem: 246179#[$Ultimate##0]don't care [97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[] 243771#[L116]don't care [186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0] 243773#[L116-1, $Ultimate##0]don't care [130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2] 244791#[L116-1, L59]don't care [198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0] 245703#[L29, L63, L116-1]don't care [201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2] 237333#[L64, L116-1, L29, L44]don't care [2023-10-12 17:13:39,024 INFO L750 eck$LassoCheckResult]: Loop: 237333#[L64, L116-1, L29, L44]don't care [146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6] 246953#[L64, L29, L116-1, L46]don't care [147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1] 246935#[L64, L47, L116-1, L29]don't care [137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4] 246937#[L64, L47, L116-1, L31]don't care [148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3] 244705#[L64, L116-1, L48, L31]don't care [138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0] 237747#[L64, L32, L116-1, L48]don't care [139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2] 247923#[L64, L116-1, L48, L33]don't care [149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[] 250531#[L64, L116-1, L49, L33]don't care [150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7] 252799#[L64, L116-1, L50, L33]don't care [140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[] 252801#[L64, L116-1, L34, L50]don't care [141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5] 252803#[L64, L116-1, L50, L35]don't care [151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0] 253457#[L64, L116-1, L35, L51]don't care [152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3] 253893#[L64, L116-1, L52, L35]don't care [142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1] 254367#[L64, L116-1, L52, L36]don't care [143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2] 245229#[L64, L116-1, L52, L37]don't care [144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[] 248255#[L64, L29, L116-1, L52]don't care [153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[] 237333#[L64, L116-1, L29, L44]don't care [2023-10-12 17:13:39,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:39,024 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 3 times [2023-10-12 17:13:39,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:39,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574260571] [2023-10-12 17:13:39,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:39,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:39,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:39,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1532020603, now seen corresponding path program 2 times [2023-10-12 17:13:39,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:39,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493128483] [2023-10-12 17:13:39,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:39,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:39,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1903247813, now seen corresponding path program 2 times [2023-10-12 17:13:39,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:39,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687584049] [2023-10-12 17:13:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:39,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:39,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:39,126 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:39,126 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:39,126 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:39,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:39,126 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:13:39,127 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,127 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:39,127 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:39,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:13:39,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:39,127 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:39,128 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 17:13:39,136 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 17:13:39,140 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 17:13:39,144 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 17:13:39,194 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:39,195 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:13:39,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,212 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 17:13:39,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:39,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:39,243 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 17:13:39,250 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 17:13:39,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,251 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 17:13:39,253 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 17:13:39,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:39,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:39,528 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:39,528 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=6, temp_7=5, x_0=6} Honda state: {temp_4=6, temp_7=5, x_0=6} Generalized eigenvectors: [{temp_4=2, temp_7=2, x_0=2}, {temp_4=0, temp_7=0, x_0=0}, {temp_4=-2, temp_7=0, x_0=0}] Lambdas: [1, 14, 0] Nus: [0, 0] [2023-10-12 17:13:39,535 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 17:13:39,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,536 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 17:13:39,538 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 17:13:39,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:39,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:39,563 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 17:13:39,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:39,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:39,565 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 17:13:39,567 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 17:13:39,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:39,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,206 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,206 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_6=2, y_1=0, temp_5=6} Honda state: {temp_6=2, y_1=0, temp_5=6} Generalized eigenvectors: [{temp_6=0, y_1=0, temp_5=-8}, {temp_6=-3, y_1=1, temp_5=2}, {temp_6=1, y_1=1, temp_5=1}] Lambdas: [0, 0, 1] Nus: [0, 1] [2023-10-12 17:13:40,210 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 17:13:40,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,212 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 17:13:40,214 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 17:13:40,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,228 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,228 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f2_3 1 0)_3=0} Honda state: {v_rep(ite f2_3 1 0)_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:40,231 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 17:13:40,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,233 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 17:13:40,235 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 17:13:40,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,255 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,256 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_3=0} Honda state: {v_rep(ite f1_2 1 0)_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:40,259 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 17:13:40,319 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:40,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:40,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:40,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:40,320 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:13:40,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:40,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:40,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:13:40,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:40,320 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:40,321 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 17:13:40,325 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 17:13:40,330 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 17:13:40,331 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 17:13:40,333 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 17:13:40,335 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 17:13:40,340 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 17:13:40,342 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 17:13:40,344 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 17:13:40,346 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 17:13:40,423 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:40,423 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:13:40,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,424 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 17:13:40,426 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 17:13:40,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,450 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,450 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f2_3 1 0)_4=0} Honda state: {v_rep(ite f2_3 1 0)_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:40,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-10-12 17:13:40,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,469 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 17:13:40,473 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 17:13:40,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,540 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 17:13:40,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,542 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 17:13:40,544 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 17:13:40,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:40,546 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=-2, temp_7=-1, x_8=0, x_0=0} Honda state: {temp_4=-2, temp_7=-1, x_8=0, x_0=0} Generalized eigenvectors: [{temp_4=7, temp_7=7, x_8=6, x_0=7}, {temp_4=-5, temp_7=-5, x_8=-6, x_0=-5}, {temp_4=0, temp_7=0, x_8=0, x_0=0}] Lambdas: [1, 1, 4] Nus: [0, 1] [2023-10-12 17:13:40,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-10-12 17:13:40,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,789 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 17:13:40,789 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 17:13:40,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,802 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,803 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 17:13:40,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-10-12 17:13:40,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,807 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 17:13:40,809 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 17:13:40,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,830 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar0=0} Honda state: {thread3Thread1of1ForFork1_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:40,835 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 17:13:40,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,838 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 17:13:40,840 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 17:13:40,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,886 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:40,886 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 17:13:40,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:40,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,893 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 17:13:40,895 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 17:13:40,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:40,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:40,923 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 17:13:40,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:40,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:40,924 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 17:13:40,926 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 17:13:40,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:13:40,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:41,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:41,263 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y_9=-8, y_1=-8, temp_6=-4, temp_5=-5} Honda state: {y_9=-8, y_1=-8, temp_6=-4, temp_5=-5} Generalized eigenvectors: [{y_9=0, y_1=2, temp_6=2, temp_5=2}, {y_9=0, y_1=0, temp_6=0, temp_5=-3}, {y_9=0, y_1=0, temp_6=-6, temp_5=-1}] Lambdas: [1, 0, 0] Nus: [0, 0] [2023-10-12 17:13:41,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-10-12 17:13:41,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:41,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:41,269 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 17:13:41,271 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 17:13:41,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:41,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:41,294 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:41,294 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 17:13:41,297 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 17:13:41,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:41,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:41,298 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 17:13:41,300 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 17:13:41,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:41,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:41,326 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:41,326 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 17:13:41,329 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 17:13:41,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:41,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:41,330 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 17:13:41,332 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 17:13:41,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:41,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:41,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:41,345 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_4=0} Honda state: {v_rep(ite f1_2 1 0)_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:13:41,349 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 17:13:41,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:41,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:41,351 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 17:13:41,351 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 17:13:41,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:13:41,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:13:41,370 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:13:41,370 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 17:13:41,374 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 17:13:41,385 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] [2023-10-12 17:13:41,385 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] [2023-10-12 17:13:41,388 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] [2023-10-12 17:13:41,388 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] [2023-10-12 17:13:41,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] [2023-10-12 17:13:41,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] [2023-10-12 17:13:41,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier7,QUANTIFIED] [2023-10-12 17:13:41,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier8,QUANTIFIED] [2023-10-12 17:13:41,389 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier9,QUANTIFIED] [2023-10-12 17:13:41,390 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier10,QUANTIFIED] [2023-10-12 17:13:41,390 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier11,QUANTIFIED] [2023-10-12 17:13:41,390 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier12,QUANTIFIED] [2023-10-12 17:13:41,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier13,QUANTIFIED] [2023-10-12 17:13:41,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier14,QUANTIFIED] [2023-10-12 17:13:41,392 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier15,QUANTIFIED] [2023-10-12 17:13:41,393 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier16,QUANTIFIED] [2023-10-12 17:13:41,393 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier17,QUANTIFIED] [2023-10-12 17:13:41,393 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier18,QUANTIFIED] [2023-10-12 17:13:41,412 INFO L201 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:41 BoogieIcfgContainer [2023-10-12 17:13:41,412 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:41,412 INFO L158 Benchmark]: Toolchain (without parser) took 13870.93ms. Allocated memory was 184.5MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 131.8MB in the beginning and 3.6GB in the end (delta: -3.5GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-10-12 17:13:41,413 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.28ms. Allocated memory is still 184.5MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:41,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.36ms. Allocated memory is still 184.5MB. Free memory was 131.8MB in the beginning and 130.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:13:41,413 INFO L158 Benchmark]: Boogie Preprocessor took 13.28ms. Allocated memory is still 184.5MB. Free memory was 130.1MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:41,414 INFO L158 Benchmark]: RCFGBuilder took 303.34ms. Allocated memory was 184.5MB in the beginning and 224.4MB in the end (delta: 39.8MB). Free memory was 128.9MB in the beginning and 190.2MB in the end (delta: -61.2MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2023-10-12 17:13:41,414 INFO L158 Benchmark]: BuchiAutomizer took 13531.87ms. Allocated memory was 224.4MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 190.2MB in the beginning and 3.6GB in the end (delta: -3.4GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-10-12 17:13:41,417 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 0.28ms. Allocated memory is still 184.5MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.36ms. Allocated memory is still 184.5MB. Free memory was 131.8MB in the beginning and 130.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.28ms. Allocated memory is still 184.5MB. Free memory was 130.1MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 303.34ms. Allocated memory was 184.5MB in the beginning and 224.4MB in the end (delta: 39.8MB). Free memory was 128.9MB in the beginning and 190.2MB in the end (delta: -61.2MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. * BuchiAutomizer took 13531.87ms. Allocated memory was 224.4MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 190.2MB in the beginning and 3.6GB in the end (delta: -3.4GB). Peak memory consumption was 1.0GB. 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] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier16,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier17,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier18,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (if f1_2 then 1 else 0) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 17047 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.1s. Büchi inclusion checks took 5.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 2.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 11094 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 3.0s Buchi closure took 0.1s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 475 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 286 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq209 hnf90 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 84ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 6 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.8s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 44]: Nontermination argument in form of an infinite program execution. [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier19,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier20,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier21,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier22,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier23,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier24,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier25,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier26,QUANTIFIED] [2023-10-12 17:13:41,426 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier27,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier28,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier29,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier30,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier31,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier32,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier33,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier34,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier35,QUANTIFIED] [2023-10-12 17:13:41,427 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier36,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier37,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier38,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier39,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier40,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier41,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier42,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier43,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier44,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier45,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier46,QUANTIFIED] [2023-10-12 17:13:41,428 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier47,QUANTIFIED] [2023-10-12 17:13:41,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier48,QUANTIFIED] [2023-10-12 17:13:41,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier49,QUANTIFIED] [2023-10-12 17:13:41,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier50,QUANTIFIED] [2023-10-12 17:13:41,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier51,QUANTIFIED] [2023-10-12 17:13:41,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier52,QUANTIFIED] [2023-10-12 17:13:41,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier53,QUANTIFIED] [2023-10-12 17:13:41,429 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier54,QUANTIFIED] Nontermination argument in form of an infinite execution State at position 0 is {y_1=-8, x_0=0, freshIdentifier37=0, temp_5=-5, freshIdentifier38=0, temp_6=-4, freshIdentifier39=0, temp_4=-2, (if f2_3 then 1 else 0)=0, (if f1_2 then 1 else 0)=0, freshIdentifier40=0, temp_7=-1, freshIdentifier41=0, freshIdentifier42=0, y_9=-8, x_8=0} State at position 1 is {y_1=-8, x_0=0, freshIdentifier43=3, temp_5=-5, freshIdentifier44=3, temp_6=-4, freshIdentifier45=3, temp_4=-2, (if f2_3 then 1 else 0)=0, (if f1_2 then 1 else 0)=0, freshIdentifier46=2, temp_7=-1, freshIdentifier47=1, freshIdentifier48=2, y_9=-8, x_8=0} For i>1, the state at position i is {y_1=-8 + sum_{k=0}^i 2, x_0=0 + sum_{k=0}^i 7 + -5, freshIdentifier49=3 + sum_{k=0}^i 0, temp_5=-5 + sum_{k=0}^i 2 + -3*0^k + -1*0^k, freshIdentifier50=3 + sum_{k=0}^i 0, temp_6=-4 + sum_{k=0}^i 2 + -6*0^k, freshIdentifier51=3 + sum_{k=0}^i 0, temp_4=-2 + sum_{k=0}^i 7 + -5, (if f2_3 then 1 else 0)=0 + sum_{k=0}^i 0, (if f1_2 then 1 else 0)=0 + sum_{k=0}^i 0, freshIdentifier52=2 + sum_{k=0}^i 0, temp_7=-1 + sum_{k=0}^i 7 + -5, freshIdentifier53=1 + sum_{k=0}^i 0, freshIdentifier54=2 + sum_{k=0}^i 0, y_9=-8 + sum_{k=0}^i 0, x_8=0 + sum_{k=0}^i 6 + -6} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 5GEVs Lambdas: [1, 1, 4, 1, 0, 0] Mus: [0, 1, 0, 0, 0] - NonterminatingLassoResult [Line: 44]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L115] 0 assume x_0 == x_8 && y_1 == y_9; [L116] FORK 0 fork 1 thread1(); [L60] 1 f1_2 := false; [L61] 1 f2_3 := false; [L63] FORK 1 fork 2, 2 thread2(); [L64] FORK 1 fork 3, 3, 3 thread3(); Loop: [L45] temp_6 := y_1; [L46] y_1 := temp_6 + 1; [L30] temp_4 := x_0; [L47] f2_3 := true; [L31] x_0 := temp_4 + 1; [L32] f1_2 := true; [L48] assume f1_2; [L49] temp_7 := x_0; [L33] assume f2_3; [L34] temp_5 := y_1; [L50] x_0 := temp_7 + 1; [L51] f2_3 := false; [L35] y_1 := temp_5 + 1; [L36] f1_2 := false; [L37] assume !f2_3; [L52] assume !f1_2; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 72 PlacesBefore, 70 PlacesAfterwards, 61 TransitionsBefore, 59 TransitionsAfterwards, 1888 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 7686 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4869, independent: 4701, independent conditional: 0, independent unconditional: 4701, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1303, independent: 1271, independent conditional: 0, independent unconditional: 1271, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1303, independent: 1259, independent conditional: 0, independent unconditional: 1259, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4869, independent: 3430, independent conditional: 0, independent unconditional: 3430, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 1303, unknown conditional: 0, unknown unconditional: 1303] , Statistics on independence cache: Total cache size (in pairs): 1303, Positive cache size: 1271, Positive conditional cache size: 0, Positive unconditional cache size: 1271, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, 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 17:13:41,438 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...