/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_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:30:26,864 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:30:26,906 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 17:30:26,945 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:30:26,946 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:30:26,946 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:30:26,948 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:30:26,948 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:30:26,949 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:30:26,952 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:30:26,952 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:30:26,953 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:30:26,953 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:30:26,954 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:30:26,955 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:30:26,955 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:30:26,955 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:30:26,955 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:30:26,956 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:30:26,956 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:30:26,956 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:30:26,956 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:30:26,956 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:30:26,957 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:30:26,957 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:30:26,957 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:30:26,957 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:30:26,957 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:30:26,958 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:30:26,958 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:30:26,959 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:30:26,959 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:30:26,959 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:30:26,960 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:30:26,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:30:27,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:30:27,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:30:27,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:30:27,199 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:30:27,200 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:30:27,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2023-10-12 17:30:27,201 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2023-10-12 17:30:27,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:30:27,232 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:30:27,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:27,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:30:27,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:30:27,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,263 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:30:27,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:27,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:30:27,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:30:27,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:30:27,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:30:27,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:30:27,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:30:27,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:30:27,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/1) ... [2023-10-12 17:30:27,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:27,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:27,323 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 17:30:27,351 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 17:30:27,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:30:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:30:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:30:27,368 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:30:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:30:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:30:27,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:30:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:30:27,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:30:27,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:30:27,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:30:27,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:30:27,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:30:27,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:30:27,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:30:27,372 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 17:30:27,414 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:30:27,415 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:30:27,526 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:30:27,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:30:27,548 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:30:27,551 INFO L201 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:27 BoogieIcfgContainer [2023-10-12 17:30:27,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:30:27,552 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:30:27,552 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:30:27,555 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:30:27,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:27,556 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:27" (1/2) ... [2023-10-12 17:30:27,558 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fe0c37f and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:30:27, skipping insertion in model container [2023-10-12 17:30:27,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:27,558 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:27" (2/2) ... [2023-10-12 17:30:27,559 INFO L332 chiAutomizerObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2023-10-12 17:30:27,636 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:30:27,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 110 flow [2023-10-12 17:30:27,680 INFO L124 PetriNetUnfolderBase]: 4/31 cut-off events. [2023-10-12 17:30:27,680 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:30:27,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 31 events. 4/31 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:30:27,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 39 transitions, 110 flow [2023-10-12 17:30:27,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 31 transitions, 86 flow [2023-10-12 17:30:27,691 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:30:27,703 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 31 transitions, 86 flow [2023-10-12 17:30:27,705 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 31 transitions, 86 flow [2023-10-12 17:30:27,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 31 transitions, 86 flow [2023-10-12 17:30:27,721 INFO L124 PetriNetUnfolderBase]: 4/31 cut-off events. [2023-10-12 17:30:27,721 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:30:27,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 31 events. 4/31 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:30:27,729 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:30:28,004 INFO L134 LiptonReduction]: Checked pairs total: 192 [2023-10-12 17:30:28,004 INFO L136 LiptonReduction]: Total number of compositions: 13 [2023-10-12 17:30:28,016 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:30:28,016 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:30:28,016 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:30:28,016 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:30:28,016 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:30:28,017 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:30:28,017 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:30:28,017 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:30:28,018 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:30:28,021 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:28,021 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:30:28,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:28,021 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:28,024 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:30:28,024 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:30:28,025 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:28,025 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:30:28,026 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:28,026 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:28,030 INFO L748 eck$LassoCheckResult]: Stem: 48#[$Ultimate##0]true [130] $Ultimate##0-->L71: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_16 v_j2_16) (= v_i1_16 v_j1_16) (= v_M2_10 v_N1_10) (= v_i1_16 v_i2_16) (= v_N2_10 v_N1_10) (= v_i1_16 0)) InVars {counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} AuxVars[] AssignedVars[] 50#[L71]true [104] L71-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 52#[L23-1, L71-1]true [2023-10-12 17:30:28,030 INFO L750 eck$LassoCheckResult]: Loop: 52#[L23-1, L71-1]true [124] L23-1-->L23-1: Formula: (and (< v_i1_13 v_N1_6) (= v_i1_12 (+ v_i1_13 1)) (= v_counter_45 (+ v_counter_46 1))) InVars {counter=v_counter_46, i1=v_i1_13, N1=v_N1_6} OutVars{counter=v_counter_45, i1=v_i1_12, N1=v_N1_6} AuxVars[] AssignedVars[counter, i1] 52#[L23-1, L71-1]true [2023-10-12 17:30:28,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,035 INFO L85 PathProgramCache]: Analyzing trace with hash 5095, now seen corresponding path program 1 times [2023-10-12 17:30:28,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:28,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005827505] [2023-10-12 17:30:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:28,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:28,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash 155, now seen corresponding path program 1 times [2023-10-12 17:30:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692020621] [2023-10-12 17:30:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:28,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:28,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,147 INFO L85 PathProgramCache]: Analyzing trace with hash 158069, now seen corresponding path program 1 times [2023-10-12 17:30:28,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:28,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275414956] [2023-10-12 17:30:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:28,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:28,212 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:28,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:28,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:28,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:28,214 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:30:28,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:28,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:28,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:30:28,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:28,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:28,228 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 17:30:28,273 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 17:30:28,321 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:28,321 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:30:28,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,327 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 17:30:28,337 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 17:30:28,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:30:28,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:28,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:28,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,371 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 17:30:28,374 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 17:30:28,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:30:28,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:28,488 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:30:28,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-10-12 17:30:28,491 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:28,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:28,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:28,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:28,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:28,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:28,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:28,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:30:28,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:28,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:28,494 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 17:30:28,500 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 17:30:28,525 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:28,529 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:28,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,532 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 17:30:28,552 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 17:30:28,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:28,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:28,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:28,569 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 17:30:28,585 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:28,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:30:28,590 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:30:28,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,597 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 17:30:28,602 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:28,603 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:30:28,603 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:28,604 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, N1) = -1*i1 + 1*N1 Supporting invariants [] [2023-10-12 17:30:28,612 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 17:30:28,612 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 17:30:28,616 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:28,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:28,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:28,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:28,674 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:30:28,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:28,675 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 17:30:28,705 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:30:28,708 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:28,865 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5 states and 304 transitions. [2023-10-12 17:30:28,866 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:28,869 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:28,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2023-10-12 17:30:28,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 208 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:30:28,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:28,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 208 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:30:28,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:28,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 208 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:30:28,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:28,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 220 transitions, 1168 flow [2023-10-12 17:30:28,971 INFO L124 PetriNetUnfolderBase]: 431/583 cut-off events. [2023-10-12 17:30:28,971 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-10-12 17:30:28,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 583 events. 431/583 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1635 event pairs, 57 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 968. Up to 203 conditions per place. [2023-10-12 17:30:28,973 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 38 places, 220 transitions, 1168 flow [2023-10-12 17:30:28,978 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 38 places, 220 transitions, 1168 flow [2023-10-12 17:30:28,979 INFO L430 stractBuchiCegarLoop]: Abstraction has has 38 places, 220 transitions, 1168 flow [2023-10-12 17:30:28,979 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:30:28,979 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 places, 220 transitions, 1168 flow [2023-10-12 17:30:28,985 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:28,985 INFO L124 PetriNetUnfolderBase]: 27/41 cut-off events. [2023-10-12 17:30:28,985 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-10-12 17:30:28,986 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:28,986 INFO L748 eck$LassoCheckResult]: Stem: 48#[$Ultimate##0]true [130] $Ultimate##0-->L71: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_16 v_j2_16) (= v_i1_16 v_j1_16) (= v_M2_10 v_N1_10) (= v_i1_16 v_i2_16) (= v_N2_10 v_N1_10) (= v_i1_16 0)) InVars {counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} AuxVars[] AssignedVars[] 50#[L71]true [104] L71-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 52#[L23-1, L71-1]true [107] L71-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 97#[L23-1, L34-1, L72]true [2023-10-12 17:30:28,986 INFO L750 eck$LassoCheckResult]: Loop: 97#[L23-1, L34-1, L72]true [121] L34-1-->L34-1: Formula: (and (= v_i2_12 (+ v_i2_13 1)) (= v_counter_42 (+ v_counter_41 1)) (< v_i2_13 v_N2_6) (< 0 v_counter_42)) InVars {counter=v_counter_42, i2=v_i2_13, N2=v_N2_6} OutVars{counter=v_counter_41, i2=v_i2_12, N2=v_N2_6} AuxVars[] AssignedVars[counter, i2] 97#[L23-1, L34-1, L72]true [121] L34-1-->L34-1: Formula: (and (= v_i2_12 (+ v_i2_13 1)) (= v_counter_42 (+ v_counter_41 1)) (< v_i2_13 v_N2_6) (< 0 v_counter_42)) InVars {counter=v_counter_42, i2=v_i2_13, N2=v_N2_6} OutVars{counter=v_counter_41, i2=v_i2_12, N2=v_N2_6} AuxVars[] AssignedVars[counter, i2] 97#[L23-1, L34-1, L72]true [2023-10-12 17:30:28,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,987 INFO L85 PathProgramCache]: Analyzing trace with hash 158052, now seen corresponding path program 1 times [2023-10-12 17:30:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:28,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927808002] [2023-10-12 17:30:28,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:28,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:28,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,000 INFO L85 PathProgramCache]: Analyzing trace with hash 4833, now seen corresponding path program 1 times [2023-10-12 17:30:29,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:29,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043288619] [2023-10-12 17:30:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:29,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:29,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,012 INFO L85 PathProgramCache]: Analyzing trace with hash 151891844, now seen corresponding path program 1 times [2023-10-12 17:30:29,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:29,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659308076] [2023-10-12 17:30:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:29,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:29,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:29,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:30:29,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659308076] [2023-10-12 17:30:29,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659308076] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:30:29,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:30:29,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-10-12 17:30:29,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767213819] [2023-10-12 17:30:29,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:30:29,133 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:29,133 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:29,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:29,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:29,134 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:30:29,134 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,134 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:29,134 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:29,134 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:30:29,134 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:29,134 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:29,135 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 17:30:29,141 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 17:30:29,173 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:29,174 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:30:29,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:29,177 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 17:30:29,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:30:29,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:29,198 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 17:30:29,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:29,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:29,215 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 17:30:29,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:30:29,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:29,233 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 17:30:29,277 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:30:29,281 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 17:30:29,281 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:29,281 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:29,281 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:29,281 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:29,281 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:29,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:29,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:29,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:30:29,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:29,282 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:29,283 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 17:30:29,290 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 17:30:29,324 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:29,324 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:29,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:29,326 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 17:30:29,340 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 17:30:29,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:29,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:29,348 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 17:30:29,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:29,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:29,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:29,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:29,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:29,361 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:29,365 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-10-12 17:30:29,365 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:30:29,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:29,403 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 17:30:29,405 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 17:30:29,406 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:29,406 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:30:29,406 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:29,406 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(counter) = 1*counter Supporting invariants [] [2023-10-12 17:30:29,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-10-12 17:30:29,416 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:29,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:29,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:29,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:29,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:30:29,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:29,488 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:30:29,488 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:29,593 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 342 transitions. [2023-10-12 17:30:29,593 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:29,617 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:29,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2023-10-12 17:30:29,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:30:29,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:29,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:30:29,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:29,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:30:29,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:29,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 2872 transitions, 21264 flow [2023-10-12 17:30:29,750 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 17:30:29,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-10-12 17:30:29,925 INFO L124 PetriNetUnfolderBase]: 1622/2234 cut-off events. [2023-10-12 17:30:29,925 INFO L125 PetriNetUnfolderBase]: For 574/574 co-relation queries the response was YES. [2023-10-12 17:30:29,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7309 conditions, 2234 events. 1622/2234 cut-off events. For 574/574 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 9000 event pairs, 115 based on Foata normal form. 0/1348 useless extension candidates. Maximal degree in co-relation 4864. Up to 782 conditions per place. [2023-10-12 17:30:29,933 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 50 places, 2872 transitions, 21264 flow [2023-10-12 17:30:29,974 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 50 places, 2872 transitions, 21264 flow [2023-10-12 17:30:29,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:30:29,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:30:29,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:30:29,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 2872 transitions, 21264 flow. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:29,978 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:30:29,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:30:30,512 INFO L124 PetriNetUnfolderBase]: 1879/2669 cut-off events. [2023-10-12 17:30:30,512 INFO L125 PetriNetUnfolderBase]: For 711/711 co-relation queries the response was YES. [2023-10-12 17:30:30,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11456 conditions, 2669 events. 1879/2669 cut-off events. For 711/711 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 11246 event pairs, 136 based on Foata normal form. 0/1724 useless extension candidates. Maximal degree in co-relation 7648. Up to 2278 conditions per place. [2023-10-12 17:30:30,537 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 267 selfloop transitions, 9 changer transitions 86/362 dead transitions. [2023-10-12 17:30:30,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 362 transitions, 3379 flow [2023-10-12 17:30:30,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 362 transitions, 3379 flow [2023-10-12 17:30:30,701 INFO L124 PetriNetUnfolderBase]: 1879/2669 cut-off events. [2023-10-12 17:30:30,702 INFO L125 PetriNetUnfolderBase]: For 711/711 co-relation queries the response was YES. [2023-10-12 17:30:30,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11456 conditions, 2669 events. 1879/2669 cut-off events. For 711/711 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 11248 event pairs, 136 based on Foata normal form. 0/1724 useless extension candidates. Maximal degree in co-relation 7648. Up to 2278 conditions per place. [2023-10-12 17:30:30,707 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 362 transitions, 3379 flow [2023-10-12 17:30:30,712 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 362 transitions, 3379 flow [2023-10-12 17:30:30,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:30:30,714 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 362 transitions, 3379 flow [2023-10-12 17:30:30,714 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:30:30,714 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 362 transitions, 3379 flow [2023-10-12 17:30:30,756 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:30,756 INFO L124 PetriNetUnfolderBase]: 262/395 cut-off events. [2023-10-12 17:30:30,756 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-10-12 17:30:30,756 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:30,757 INFO L748 eck$LassoCheckResult]: Stem: 48#[$Ultimate##0]true [130] $Ultimate##0-->L71: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_16 v_j2_16) (= v_i1_16 v_j1_16) (= v_M2_10 v_N1_10) (= v_i1_16 v_i2_16) (= v_N2_10 v_N1_10) (= v_i1_16 0)) InVars {counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} AuxVars[] AssignedVars[] 50#[L71]true [104] L71-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 52#[L23-1, L71-1]true [107] L71-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 97#[L23-1, L34-1, L72]true [110] L72-->L46-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 149#[L46-1, L23-1, L34-1, L73]true [124] L23-1-->L23-1: Formula: (and (< v_i1_13 v_N1_6) (= v_i1_12 (+ v_i1_13 1)) (= v_counter_45 (+ v_counter_46 1))) InVars {counter=v_counter_46, i1=v_i1_13, N1=v_N1_6} OutVars{counter=v_counter_45, i1=v_i1_12, N1=v_N1_6} AuxVars[] AssignedVars[counter, i1] 149#[L46-1, L23-1, L34-1, L73]true [123] L23-1-->thread1EXIT: Formula: (<= v_N1_4 v_i1_10) InVars {i1=v_i1_10, N1=v_N1_4} OutVars{i1=v_i1_10, N1=v_N1_4} AuxVars[] AssignedVars[] 152#[L46-1, L34-1, L73, thread1EXIT]true [121] L34-1-->L34-1: Formula: (and (= v_i2_12 (+ v_i2_13 1)) (= v_counter_42 (+ v_counter_41 1)) (< v_i2_13 v_N2_6) (< 0 v_counter_42)) InVars {counter=v_counter_42, i2=v_i2_13, N2=v_N2_6} OutVars{counter=v_counter_41, i2=v_i2_12, N2=v_N2_6} AuxVars[] AssignedVars[counter, i2] 152#[L46-1, L34-1, L73, thread1EXIT]true [2023-10-12 17:30:30,757 INFO L750 eck$LassoCheckResult]: Loop: 152#[L46-1, L34-1, L73, thread1EXIT]true [119] L46-1-->L46-1: Formula: (and (= v_counter_37 (+ v_counter_38 1)) (< v_j1_13 v_M1_6) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_38, j1=v_j1_13, M1=v_M1_6} OutVars{counter=v_counter_37, j1=v_j1_12, M1=v_M1_6} AuxVars[] AssignedVars[counter, j1] 152#[L46-1, L34-1, L73, thread1EXIT]true [121] L34-1-->L34-1: Formula: (and (= v_i2_12 (+ v_i2_13 1)) (= v_counter_42 (+ v_counter_41 1)) (< v_i2_13 v_N2_6) (< 0 v_counter_42)) InVars {counter=v_counter_42, i2=v_i2_13, N2=v_N2_6} OutVars{counter=v_counter_41, i2=v_i2_12, N2=v_N2_6} AuxVars[] AssignedVars[counter, i2] 152#[L46-1, L34-1, L73, thread1EXIT]true [2023-10-12 17:30:30,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:30,757 INFO L85 PathProgramCache]: Analyzing trace with hash -61146864, now seen corresponding path program 1 times [2023-10-12 17:30:30,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684956113] [2023-10-12 17:30:30,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:30,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:30,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:30,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:30,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:30,809 INFO L85 PathProgramCache]: Analyzing trace with hash 4771, now seen corresponding path program 1 times [2023-10-12 17:30:30,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:30,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931742660] [2023-10-12 17:30:30,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:30,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:30,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:30,825 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:30,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1367409650, now seen corresponding path program 1 times [2023-10-12 17:30:30,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:30,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884788989] [2023-10-12 17:30:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:30,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:30,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:30:30,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884788989] [2023-10-12 17:30:30,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884788989] provided 0 perfect and 1 imperfect interpolant sequences [2023-10-12 17:30:30,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869966793] [2023-10-12 17:30:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:30,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:30:30,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:30,973 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:30:30,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-10-12 17:30:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:31,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2023-10-12 17:30:31,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:31,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-10-12 17:30:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:31,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869966793] provided 0 perfect and 2 imperfect interpolant sequences [2023-10-12 17:30:31,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-10-12 17:30:31,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-10-12 17:30:31,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622126453] [2023-10-12 17:30:31,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-10-12 17:30:31,208 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:31,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:31,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:31,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:31,208 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:30:31,208 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:31,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:31,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:31,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:30:31,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:31,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:31,211 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 17:30:31,216 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 17:30:31,223 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 17:30:31,260 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:31,260 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:30:31,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:31,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:31,265 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 17:30:31,268 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 17:30:31,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:30:31,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:31,318 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 17:30:31,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:31,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:31,322 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 17:30:31,324 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 17:30:31,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:30:31,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:31,418 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:30:31,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:31,422 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:31,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:31,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:31,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:31,423 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:31,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:31,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:31,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:31,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:30:31,423 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:31,423 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:31,424 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 17:30:31,430 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 17:30:31,437 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 17:30:31,478 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:31,478 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:31,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:31,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:31,479 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 17:30:31,492 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 17:30:31,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:31,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:31,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:31,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:31,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:31,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:31,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:31,504 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 17:30:31,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:31,519 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:30:31,519 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:30:31,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:31,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:31,521 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 17:30:31,523 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 17:30:31,571 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:31,572 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:30:31,572 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:31,572 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M1, j1) = 1*M1 - 1*j1 Supporting invariants [] [2023-10-12 17:30:31,578 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 17:30:31,579 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:31,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:31,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:31,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:31,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:30:31,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:31,637 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 17:30:31,638 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:30:31,638 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 17:30:31,712 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 5 states and 304 transitions. [2023-10-12 17:30:31,712 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:31,736 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:31,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 17:30:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2023-10-12 17:30:31,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 208 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:30:31,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:31,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 208 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:30:31,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:31,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 208 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:30:31,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:31,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 4264 transitions, 48436 flow [2023-10-12 17:30:32,384 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 17:30:34,120 INFO L124 PetriNetUnfolderBase]: 6237/8380 cut-off events. [2023-10-12 17:30:34,120 INFO L125 PetriNetUnfolderBase]: For 2029/2029 co-relation queries the response was YES. [2023-10-12 17:30:34,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44076 conditions, 8380 events. 6237/8380 cut-off events. For 2029/2029 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 38146 event pairs, 287 based on Foata normal form. 0/4770 useless extension candidates. Maximal degree in co-relation 29205. Up to 7989 conditions per place. [2023-10-12 17:30:34,126 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 56 places, 4264 transitions, 48436 flow [2023-10-12 17:30:34,175 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 56 places, 4264 transitions, 48436 flow [2023-10-12 17:30:34,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:30:34,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-10-12 17:30:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-10-12 17:30:34,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 4264 transitions, 48436 flow. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 17:30:34,176 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:30:34,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:30:38,894 INFO L124 PetriNetUnfolderBase]: 12984/17531 cut-off events. [2023-10-12 17:30:38,894 INFO L125 PetriNetUnfolderBase]: For 4196/4196 co-relation queries the response was YES. [2023-10-12 17:30:38,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109670 conditions, 17531 events. 12984/17531 cut-off events. For 4196/4196 co-relation queries the response was YES. Maximal size of possible extension queue 862. Compared 90162 event pairs, 171 based on Foata normal form. 0/10129 useless extension candidates. Maximal degree in co-relation 72490. Up to 17140 conditions per place. [2023-10-12 17:30:39,013 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 2475 selfloop transitions, 402 changer transitions 750/3627 dead transitions. [2023-10-12 17:30:39,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 3627 transitions, 47295 flow [2023-10-12 17:30:39,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 3627 transitions, 47295 flow [2023-10-12 17:30:42,576 INFO L124 PetriNetUnfolderBase]: 12984/17531 cut-off events. [2023-10-12 17:30:42,577 INFO L125 PetriNetUnfolderBase]: For 4196/4196 co-relation queries the response was YES. [2023-10-12 17:30:42,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109670 conditions, 17531 events. 12984/17531 cut-off events. For 4196/4196 co-relation queries the response was YES. Maximal size of possible extension queue 862. Compared 90217 event pairs, 171 based on Foata normal form. 0/10129 useless extension candidates. Maximal degree in co-relation 72490. Up to 17140 conditions per place. [2023-10-12 17:30:42,595 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 61 places, 3627 transitions, 47295 flow [2023-10-12 17:30:42,764 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 61 places, 3627 transitions, 47295 flow [2023-10-12 17:30:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-10-12 17:30:42,769 INFO L430 stractBuchiCegarLoop]: Abstraction has has 61 places, 3627 transitions, 47295 flow [2023-10-12 17:30:42,770 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:30:42,770 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 61 places, 3627 transitions, 47295 flow [2023-10-12 17:30:42,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:42,948 INFO L124 PetriNetUnfolderBase]: 352/550 cut-off events. [2023-10-12 17:30:42,948 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-10-12 17:30:42,948 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:42,949 INFO L748 eck$LassoCheckResult]: Stem: 48#[$Ultimate##0]true [130] $Ultimate##0-->L71: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_16 v_j2_16) (= v_i1_16 v_j1_16) (= v_M2_10 v_N1_10) (= v_i1_16 v_i2_16) (= v_N2_10 v_N1_10) (= v_i1_16 0)) InVars {counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_16, j2=v_j2_16, i2=v_i2_16, j1=v_j1_16, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, N1=v_N1_10} AuxVars[] AssignedVars[] 50#[L71]true [104] L71-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 52#[L23-1, L71-1]true [107] L71-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 97#[L23-1, L34-1, L72]true [120] L34-1-->thread2EXIT: Formula: (<= v_N2_4 v_i2_10) InVars {i2=v_i2_10, N2=v_N2_4} OutVars{i2=v_i2_10, N2=v_N2_4} AuxVars[] AssignedVars[] 276#[L23-1, thread2EXIT, L72]true [124] L23-1-->L23-1: Formula: (and (< v_i1_13 v_N1_6) (= v_i1_12 (+ v_i1_13 1)) (= v_counter_45 (+ v_counter_46 1))) InVars {counter=v_counter_46, i1=v_i1_13, N1=v_N1_6} OutVars{counter=v_counter_45, i1=v_i1_12, N1=v_N1_6} AuxVars[] AssignedVars[counter, i1] 276#[L23-1, thread2EXIT, L72]true [110] L72-->L46-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 279#[L23-1, L46-1, thread2EXIT, L73]true [119] L46-1-->L46-1: Formula: (and (= v_counter_37 (+ v_counter_38 1)) (< v_j1_13 v_M1_6) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_38, j1=v_j1_13, M1=v_M1_6} OutVars{counter=v_counter_37, j1=v_j1_12, M1=v_M1_6} AuxVars[] AssignedVars[counter, j1] 279#[L23-1, L46-1, thread2EXIT, L73]true [2023-10-12 17:30:42,949 INFO L750 eck$LassoCheckResult]: Loop: 279#[L23-1, L46-1, thread2EXIT, L73]true [119] L46-1-->L46-1: Formula: (and (= v_counter_37 (+ v_counter_38 1)) (< v_j1_13 v_M1_6) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_38, j1=v_j1_13, M1=v_M1_6} OutVars{counter=v_counter_37, j1=v_j1_12, M1=v_M1_6} AuxVars[] AssignedVars[counter, j1] 279#[L23-1, L46-1, thread2EXIT, L73]true [119] L46-1-->L46-1: Formula: (and (= v_counter_37 (+ v_counter_38 1)) (< v_j1_13 v_M1_6) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_38, j1=v_j1_13, M1=v_M1_6} OutVars{counter=v_counter_37, j1=v_j1_12, M1=v_M1_6} AuxVars[] AssignedVars[counter, j1] 279#[L23-1, L46-1, thread2EXIT, L73]true [2023-10-12 17:30:42,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:42,950 INFO L85 PathProgramCache]: Analyzing trace with hash -60849359, now seen corresponding path program 1 times [2023-10-12 17:30:42,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:42,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172529741] [2023-10-12 17:30:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:42,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:43,000 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 17:30:43,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:30:43,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172529741] [2023-10-12 17:30:43,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172529741] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:30:43,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:30:43,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-10-12 17:30:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686661153] [2023-10-12 17:30:43,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:30:43,001 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-10-12 17:30:43,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:43,001 INFO L85 PathProgramCache]: Analyzing trace with hash 4769, now seen corresponding path program 1 times [2023-10-12 17:30:43,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:43,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164266226] [2023-10-12 17:30:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:43,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:43,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:43,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:43,037 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:43,038 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:43,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:43,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:43,038 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:30:43,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:43,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:43,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:43,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:30:43,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:43,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:43,039 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 17:30:43,043 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 17:30:43,064 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:43,065 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:30:43,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:43,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:43,069 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 17:30:43,071 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 17:30:43,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:30:43,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:43,088 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 17:30:43,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:43,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:43,089 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 17:30:43,091 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 17:30:43,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:30:43,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:30:43,195 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:30:43,198 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 17:30:43,198 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:43,199 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:43,199 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:43,199 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:43,199 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:43,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:43,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:43,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:43,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: counter-add-4-semi-Q67.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:30:43,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:43,199 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:43,200 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 17:30:43,204 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 17:30:43,221 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:43,221 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:43,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:43,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:43,222 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 17:30:43,223 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 17:30:43,226 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 17:30:43,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:43,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:43,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:43,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:43,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:43,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:43,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:43,235 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:43,259 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:30:43,260 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:30:43,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:43,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:43,261 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 17:30:43,273 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:43,274 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:30:43,274 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:43,274 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(j1, M1) = -1*j1 + 1*M1 Supporting invariants [] [2023-10-12 17:30:43,274 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 17:30:43,277 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 17:30:43,278 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:43,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:43,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:43,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:43,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:30:43,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:43,330 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:30:43,330 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 17:30:43,452 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 7 states and 403 transitions. [2023-10-12 17:30:43,453 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:43,858 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:43,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:43,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 17:30:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 260 transitions. [2023-10-12 17:30:43,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 260 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:30:43,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:43,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 260 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:30:43,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:43,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 260 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:30:43,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:43,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 56826 transitions, 855900 flow [2023-10-12 17:31:04,197 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 17:34:34,816 INFO L124 PetriNetUnfolderBase]: 27660/36263 cut-off events. [2023-10-12 17:34:34,817 INFO L125 PetriNetUnfolderBase]: For 7806/7806 co-relation queries the response was YES. [2023-10-12 17:34:34,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262394 conditions, 36263 events. 27660/36263 cut-off events. For 7806/7806 co-relation queries the response was YES. Maximal size of possible extension queue 1716. Compared 190363 event pairs, 172 based on Foata normal form. 0/19390 useless extension candidates. Maximal degree in co-relation 174448. Up to 35872 conditions per place. [2023-10-12 17:34:34,868 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 75 places, 56826 transitions, 855900 flow Received shutdown request... [2023-10-12 17:34:35,261 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-10-12 17:34:35,262 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-10-12 17:34:35,744 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 75 places, 56826 transitions, 855900 flow [2023-10-12 17:34:35,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:34:35,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-10-12 17:34:35,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-10-12 17:34:35,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 56826 transitions, 855900 flow. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:34:35,745 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:34:35,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:34:35,807 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: clock still running: AutomataDifference at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopStatisticsGenerator.getValue(CegarLoopStatisticsGenerator.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmarkGenerator.getValue(BuchiCegarLoopBenchmarkGenerator.java:131) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.aggregateBenchmarkData(StatisticsData.java:60) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.(BuchiAutomizerTimingBenchmark.java:39) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:341) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-10-12 17:34:35,810 INFO L158 Benchmark]: Toolchain (without parser) took 248577.68ms. Allocated memory was 178.3MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 128.0MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-10-12 17:34:35,810 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 178.3MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:34:35,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.69ms. Allocated memory is still 178.3MB. Free memory was 128.0MB in the beginning and 126.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:34:35,811 INFO L158 Benchmark]: Boogie Preprocessor took 25.11ms. Allocated memory is still 178.3MB. Free memory was 126.6MB in the beginning and 125.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:34:35,811 INFO L158 Benchmark]: RCFGBuilder took 258.80ms. Allocated memory is still 178.3MB. Free memory was 125.3MB in the beginning and 114.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:34:35,811 INFO L158 Benchmark]: BuchiAutomizer took 248257.12ms. Allocated memory was 178.3MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 114.4MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-10-12 17:34:35,813 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 0.26ms. Allocated memory is still 178.3MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.69ms. Allocated memory is still 178.3MB. Free memory was 128.0MB in the beginning and 126.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.11ms. Allocated memory is still 178.3MB. Free memory was 126.6MB in the beginning and 125.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 258.80ms. Allocated memory is still 178.3MB. Free memory was 125.3MB in the beginning and 114.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 248257.12ms. Allocated memory was 178.3MB in the beginning and 7.4GB in the end (delta: 7.2GB). Free memory was 114.4MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Decomposition not yet finished * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 40 PlacesBefore, 28 PlacesAfterwards, 31 TransitionsBefore, 19 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 5 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 192 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 192, independent: 192, independent conditional: 0, independent unconditional: 192, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 156, independent: 156, independent conditional: 0, independent unconditional: 156, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 156, independent: 156, independent conditional: 0, independent unconditional: 156, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 192, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 156, unknown conditional: 0, unknown unconditional: 156] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AssertionError: clock still running: AutomataDifference de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: clock still running: AutomataDifference: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopStatisticsGenerator.getValue(CegarLoopStatisticsGenerator.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown