/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/parallel/parallel-sum-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:24:58,207 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:24:58,280 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 17:24:58,313 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:24:58,314 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:24:58,314 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:24:58,317 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:24:58,317 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:24:58,317 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:24:58,321 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:24:58,321 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:24:58,322 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:24:58,322 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:24:58,323 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:24:58,324 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:24:58,324 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:24:58,324 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:24:58,324 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:24:58,325 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:24:58,325 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:24:58,325 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:24:58,326 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:24:58,326 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:24:58,326 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:24:58,326 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:24:58,326 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:24:58,327 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:24:58,327 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:24:58,327 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:24:58,327 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:24:58,328 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:24:58,329 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:24:58,329 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:24:58,330 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:24:58,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:24:58,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:24:58,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:24:58,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:24:58,574 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:24:58,574 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:24:58,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl [2023-10-12 17:24:58,576 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl' [2023-10-12 17:24:58,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:24:58,612 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:24:58,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:58,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:24:58,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:24:58,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,636 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:24:58,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:24:58,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:24:58,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:24:58,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:24:58,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:24:58,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:24:58,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:24:58,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:24:58,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/1) ... [2023-10-12 17:24:58,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:58,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:58,704 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 17:24:58,732 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 17:24:58,747 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:24:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:24:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:24:58,748 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:24:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:24:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:24:58,748 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:24:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:24:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:24:58,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:24:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:24:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:24:58,750 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:24:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:24:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:24:58,751 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 17:24:58,804 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:24:58,806 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:24:58,902 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:24:58,926 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:24:58,926 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-10-12 17:24:58,927 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,927 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,927 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,928 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2023-10-12 17:24:58,929 INFO L201 PluginConnector]: Adding new model parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:24:58 BoogieIcfgContainer [2023-10-12 17:24:58,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:24:58,930 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:24:58,930 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:24:58,934 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:24:58,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:58,934 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:24:58" (1/2) ... [2023-10-12 17:24:58,935 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@714ed279 and model type parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:24:58, skipping insertion in model container [2023-10-12 17:24:58,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:24:58,936 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:24:58" (2/2) ... [2023-10-12 17:24:58,937 INFO L332 chiAutomizerObserver]: Analyzing ICFG parallel-sum-1.wvr.bpl [2023-10-12 17:24:59,005 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:24:59,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 98 flow [2023-10-12 17:24:59,048 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events. [2023-10-12 17:24:59,049 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:24:59,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 4/25 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:24:59,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 33 transitions, 98 flow [2023-10-12 17:24:59,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 25 transitions, 74 flow [2023-10-12 17:24:59,066 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:24:59,078 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 25 transitions, 74 flow [2023-10-12 17:24:59,081 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 25 transitions, 74 flow [2023-10-12 17:24:59,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 25 transitions, 74 flow [2023-10-12 17:24:59,088 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events. [2023-10-12 17:24:59,088 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:24:59,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 4/25 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:24:59,089 INFO L119 LiptonReduction]: Number of co-enabled transitions 180 [2023-10-12 17:24:59,351 INFO L134 LiptonReduction]: Checked pairs total: 216 [2023-10-12 17:24:59,351 INFO L136 LiptonReduction]: Total number of compositions: 7 [2023-10-12 17:24:59,362 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:24:59,363 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:24:59,363 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:24:59,363 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:24:59,363 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:24:59,363 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:24:59,363 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:24:59,363 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:24:59,364 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:24:59,367 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:59,367 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:24:59,368 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:59,368 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:59,370 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:24:59,370 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:24:59,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:24:59,372 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:24:59,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:24:59,372 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:24:59,376 INFO L748 eck$LassoCheckResult]: Stem: 42#[$Ultimate##0]true [74] $Ultimate##0-->L76: Formula: (and (= v_s1_5 v_s2_1) (= v_s1_5 0) (= v_i2_1 v_s1_5) (= v_i1_9 v_s1_5)) InVars {i1=v_i1_9, i2=v_i2_1, s1=v_s1_5, s2=v_s2_1} OutVars{i1=v_i1_9, i2=v_i2_1, s1=v_s1_5, s2=v_s2_1} AuxVars[] AssignedVars[] 44#[L76]true [92] L76-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 46#[L23, L76-1]true [2023-10-12 17:24:59,377 INFO L750 eck$LassoCheckResult]: Loop: 46#[L23, L76-1]true [110] L23-->L23: Formula: (and (< v_i1_44 v_n_30) (= (select v_x_33 v_i1_43) v_t11_15) (= (+ v_s1_24 v_t11_15) v_s1_23) (= (+ v_i1_44 1) v_i1_43)) InVars {s1=v_s1_24, n=v_n_30, i1=v_i1_44, x=v_x_33} OutVars{s1=v_s1_23, n=v_n_30, t11=v_t11_15, i1=v_i1_43, x=v_x_33} AuxVars[] AssignedVars[s1, t11, i1] 46#[L23, L76-1]true [2023-10-12 17:24:59,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash 3347, now seen corresponding path program 1 times [2023-10-12 17:24:59,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:59,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751721893] [2023-10-12 17:24:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:59,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:59,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:59,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:59,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash 141, now seen corresponding path program 1 times [2023-10-12 17:24:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:59,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592628090] [2023-10-12 17:24:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:59,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:59,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:59,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:24:59,524 INFO L85 PathProgramCache]: Analyzing trace with hash 103867, now seen corresponding path program 1 times [2023-10-12 17:24:59,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:24:59,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133031654] [2023-10-12 17:24:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:24:59,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:24:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:59,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:24:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:24:59,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:24:59,641 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:24:59,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:24:59,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:24:59,643 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:24:59,643 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:24:59,643 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,643 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:24:59,643 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:24:59,643 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:24:59,644 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:24:59,644 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:24:59,660 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 17:24:59,669 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 17:24:59,694 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 17:24:59,697 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:24:59,774 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:24:59,778 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:24:59,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,789 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 17:24:59,791 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 17:24:59,792 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 17:24:59,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,802 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:59,821 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 17:24:59,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,825 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 17:24:59,836 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 17:24:59,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,856 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 17:24:59,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:24:59,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:24:59,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,876 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 17:24:59,879 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 17:24:59,881 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 17:24:59,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:24:59,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:24:59,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:24:59,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:24:59,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:24:59,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:24:59,917 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:24:59,944 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:24:59,944 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:24:59,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:24:59,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:24:59,957 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 17:24:59,993 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:00,002 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 17:25:00,007 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:00,007 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:00,008 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, i1) = 1*n - 1*i1 Supporting invariants [] [2023-10-12 17:25:00,014 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 17:25:00,017 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:25:00,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:00,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:00,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:00,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:25:00,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:00,070 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 17:25:00,104 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 17:25:00,106 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 17:25:00,184 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 226 transitions. [2023-10-12 17:25:00,185 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:00,188 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:00,190 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 17:25:00,194 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 17:25:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2023-10-12 17:25:00,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 160 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:25:00,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:00,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 160 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:25:00,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:00,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 160 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:25:00,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:00,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 216 transitions, 1152 flow [2023-10-12 17:25:00,260 INFO L124 PetriNetUnfolderBase]: 458/620 cut-off events. [2023-10-12 17:25:00,260 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2023-10-12 17:25:00,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 620 events. 458/620 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1738 event pairs, 59 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 996. Up to 214 conditions per place. [2023-10-12 17:25:00,263 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 38 places, 216 transitions, 1152 flow [2023-10-12 17:25:00,267 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 38 places, 216 transitions, 1152 flow [2023-10-12 17:25:00,267 INFO L430 stractBuchiCegarLoop]: Abstraction has has 38 places, 216 transitions, 1152 flow [2023-10-12 17:25:00,267 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:25:00,267 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 places, 216 transitions, 1152 flow [2023-10-12 17:25:00,282 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:00,283 INFO L124 PetriNetUnfolderBase]: 64/92 cut-off events. [2023-10-12 17:25:00,283 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-10-12 17:25:00,283 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:00,283 INFO L748 eck$LassoCheckResult]: Stem: 42#[$Ultimate##0]true [74] $Ultimate##0-->L76: Formula: (and (= v_s1_5 v_s2_1) (= v_s1_5 0) (= v_i2_1 v_s1_5) (= v_i1_9 v_s1_5)) InVars {i1=v_i1_9, i2=v_i2_1, s1=v_s1_5, s2=v_s2_1} OutVars{i1=v_i1_9, i2=v_i2_1, s1=v_s1_5, s2=v_s2_1} AuxVars[] AssignedVars[] 44#[L76]true [92] L76-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 46#[L23, L76-1]true [95] L76-1-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 91#[L36, L23, L77]true [98] L77-->L49: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 93#[L49, L36, L23, L78]true [2023-10-12 17:25:00,284 INFO L750 eck$LassoCheckResult]: Loop: 93#[L49, L36, L23, L78]true [108] L49-->L49: Formula: (and (= (select v_x_25 v_i2_33) v_t12_11) (= (+ v_s2_14 v_t12_11) v_s2_13) (= (+ v_i2_34 1) v_i2_33) (< v_i2_34 v_n_22)) InVars {s2=v_s2_14, n=v_n_22, x=v_x_25, i2=v_i2_34} OutVars{s2=v_s2_13, n=v_n_22, t12=v_t12_11, x=v_x_25, i2=v_i2_33} AuxVars[] AssignedVars[s2, t12, i2] 93#[L49, L36, L23, L78]true [108] L49-->L49: Formula: (and (= (select v_x_25 v_i2_33) v_t12_11) (= (+ v_s2_14 v_t12_11) v_s2_13) (= (+ v_i2_34 1) v_i2_33) (< v_i2_34 v_n_22)) InVars {s2=v_s2_14, n=v_n_22, x=v_x_25, i2=v_i2_34} OutVars{s2=v_s2_13, n=v_n_22, t12=v_t12_11, x=v_x_25, i2=v_i2_33} AuxVars[] AssignedVars[s2, t12, i2] 93#[L49, L36, L23, L78]true [2023-10-12 17:25:00,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,284 INFO L85 PathProgramCache]: Analyzing trace with hash 3219510, now seen corresponding path program 1 times [2023-10-12 17:25:00,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:00,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003711291] [2023-10-12 17:25:00,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:00,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:00,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,295 INFO L85 PathProgramCache]: Analyzing trace with hash 4417, now seen corresponding path program 1 times [2023-10-12 17:25:00,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:00,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972800049] [2023-10-12 17:25:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:00,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:00,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1201014730, now seen corresponding path program 1 times [2023-10-12 17:25:00,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:00,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30001206] [2023-10-12 17:25:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:00,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:00,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:00,483 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:00,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:00,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:00,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:00,484 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:00,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:00,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:00,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: parallel-sum-1.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:25:00,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:00,484 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:00,488 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 17:25:00,492 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 17:25:00,513 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 17:25:00,517 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 17:25:00,520 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 17:25:00,523 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 17:25:00,525 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 17:25:00,528 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 17:25:00,531 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 17:25:00,640 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:00,640 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:00,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,642 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 17:25:00,644 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 17:25:00,646 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 17:25:00,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:00,676 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 17:25:00,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,678 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 17:25:00,688 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 17:25:00,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,705 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 17:25:00,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:00,725 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 17:25:00,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,726 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 17:25:00,729 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 17:25:00,730 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 17:25:00,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:00,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:00,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:00,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:00,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:00,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:00,769 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:00,780 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-10-12 17:25:00,780 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:25:00,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:00,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:00,787 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 17:25:00,789 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 17:25:00,790 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:00,802 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:00,803 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:00,803 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, i2) = 1*n - 1*i2 Supporting invariants [] [2023-10-12 17:25:00,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:00,810 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:00,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:00,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:00,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:00,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:00,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:00,857 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 17:25:00,857 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 17:25:00,858 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:25:00,915 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5 states and 226 transitions. [2023-10-12 17:25:00,916 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:00,929 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:00,930 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 17:25:00,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:25:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2023-10-12 17:25:00,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 160 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:25:00,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:00,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 160 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:25:00,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:00,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 160 transitions. Stem has 4 letters. Loop has 4 letters. [2023-10-12 17:25:00,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:00,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 2464 transitions, 18240 flow [2023-10-12 17:25:01,061 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 17:25:01,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:01,161 INFO L124 PetriNetUnfolderBase]: 1263/1710 cut-off events. [2023-10-12 17:25:01,161 INFO L125 PetriNetUnfolderBase]: For 411/411 co-relation queries the response was YES. [2023-10-12 17:25:01,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5593 conditions, 1710 events. 1263/1710 cut-off events. For 411/411 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6170 event pairs, 18 based on Foata normal form. 0/981 useless extension candidates. Maximal degree in co-relation 3654. Up to 603 conditions per place. [2023-10-12 17:25:01,167 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 48 places, 2464 transitions, 18240 flow [2023-10-12 17:25:01,204 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 48 places, 2464 transitions, 18240 flow [2023-10-12 17:25:01,205 INFO L430 stractBuchiCegarLoop]: Abstraction has has 48 places, 2464 transitions, 18240 flow [2023-10-12 17:25:01,205 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:25:01,205 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 48 places, 2464 transitions, 18240 flow [2023-10-12 17:25:01,506 INFO L124 PetriNetUnfolderBase]: 1263/1710 cut-off events. [2023-10-12 17:25:01,507 INFO L125 PetriNetUnfolderBase]: For 411/411 co-relation queries the response was YES. [2023-10-12 17:25:01,507 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:25:01,516 INFO L201 PluginConnector]: Adding new model parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:25:01 BoogieIcfgContainer [2023-10-12 17:25:01,517 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:25:01,518 INFO L158 Benchmark]: Toolchain (without parser) took 2905.32ms. Allocated memory was 188.7MB in the beginning and 270.5MB in the end (delta: 81.8MB). Free memory was 137.2MB in the beginning and 96.2MB in the end (delta: 41.0MB). Peak memory consumption was 123.5MB. Max. memory is 8.0GB. [2023-10-12 17:25:01,518 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.29ms. Allocated memory is still 188.7MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:25:01,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.33ms. Allocated memory is still 188.7MB. Free memory was 137.2MB in the beginning and 135.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:01,519 INFO L158 Benchmark]: Boogie Preprocessor took 28.28ms. Allocated memory is still 188.7MB. Free memory was 135.7MB in the beginning and 134.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:01,519 INFO L158 Benchmark]: RCFGBuilder took 262.10ms. Allocated memory is still 188.7MB. Free memory was 134.6MB in the beginning and 123.3MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-10-12 17:25:01,521 INFO L158 Benchmark]: BuchiAutomizer took 2586.39ms. Allocated memory was 188.7MB in the beginning and 270.5MB in the end (delta: 81.8MB). Free memory was 123.1MB in the beginning and 96.2MB in the end (delta: 26.8MB). Peak memory consumption was 109.8MB. Max. memory is 8.0GB. [2023-10-12 17:25:01,526 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 0.29ms. Allocated memory is still 188.7MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.33ms. Allocated memory is still 188.7MB. Free memory was 137.2MB in the beginning and 135.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.28ms. Allocated memory is still 188.7MB. Free memory was 135.7MB in the beginning and 134.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 262.10ms. Allocated memory is still 188.7MB. Free memory was 134.6MB in the beginning and 123.3MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2586.39ms. Allocated memory was 188.7MB in the beginning and 270.5MB in the end (delta: 81.8MB). Free memory was 123.1MB in the beginning and 96.2MB in the end (delta: 26.8MB). Peak memory consumption was 109.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i2 + n and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 76 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital46 mio100 ax100 hnf100 lsp66 ukn87 mio100 lsp50 div100 bol100 ite100 ukn100 eq208 hnf92 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 34 PlacesBefore, 28 PlacesAfterwards, 25 TransitionsBefore, 19 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 216 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 197, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 106, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 106, independent: 98, independent conditional: 0, independent unconditional: 98, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 197, independent: 91, independent conditional: 0, independent unconditional: 91, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 106, unknown conditional: 0, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:25:01,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...