/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/unroll-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:22:18,754 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:22:18,816 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 17:22:18,848 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:22:18,849 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:22:18,849 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:22:18,850 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:22:18,850 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:22:18,851 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:22:18,851 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:22:18,851 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:22:18,852 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:22:18,852 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:22:18,852 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:22:18,853 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:22:18,853 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:22:18,853 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:22:18,854 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:22:18,854 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:22:18,854 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:22:18,855 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:22:18,855 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:22:18,855 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:22:18,856 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:22:18,863 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:22:18,863 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:22:18,864 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:22:18,865 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:22:18,865 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:22:18,865 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:22:18,866 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:22:18,866 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:22:18,866 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:22:18,868 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:22:18,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:22:19,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:22:19,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:22:19,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:22:19,108 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:22:19,109 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:22:19,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl [2023-10-12 17:22:19,111 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl' [2023-10-12 17:22:19,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:22:19,147 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:22:19,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:19,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:22:19,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:22:19,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,171 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:22:19,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:22:19,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:22:19,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:22:19,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:22:19,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,187 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:22:19,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:22:19,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:22:19,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:22:19,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/1) ... [2023-10-12 17:22:19,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:19,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:19,231 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 17:22:19,252 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 17:22:19,272 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:22:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:22:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:22:19,273 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:22:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:22:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:22:19,273 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:22:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:22:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:22:19,274 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 17:22:19,324 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:22:19,326 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:22:19,435 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:22:19,465 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:22:19,466 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-10-12 17:22:19,466 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2023-10-12 17:22:19,467 WARN L332 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2023-10-12 17:22:19,468 INFO L201 PluginConnector]: Adding new model unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:19 BoogieIcfgContainer [2023-10-12 17:22:19,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:22:19,469 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:22:19,469 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:22:19,477 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:22:19,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:19,478 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:22:19" (1/2) ... [2023-10-12 17:22:19,479 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6823d90f and model type unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:22:19, skipping insertion in model container [2023-10-12 17:22:19,479 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:22:19,479 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:22:19" (2/2) ... [2023-10-12 17:22:19,480 INFO L332 chiAutomizerObserver]: Analyzing ICFG unroll-2.wvr.bpl [2023-10-12 17:22:19,519 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:22:19,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 17 transitions, 50 flow [2023-10-12 17:22:19,554 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2023-10-12 17:22:19,554 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:22:19,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 13 events. 2/13 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 8. Up to 2 conditions per place. [2023-10-12 17:22:19,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 20 places, 17 transitions, 50 flow [2023-10-12 17:22:19,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 13 transitions, 38 flow [2023-10-12 17:22:19,564 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:22:19,576 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 13 transitions, 38 flow [2023-10-12 17:22:19,578 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 13 transitions, 38 flow [2023-10-12 17:22:19,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 18 places, 13 transitions, 38 flow [2023-10-12 17:22:19,583 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2023-10-12 17:22:19,583 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:22:19,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 13 events. 2/13 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 8. Up to 2 conditions per place. [2023-10-12 17:22:19,584 INFO L119 LiptonReduction]: Number of co-enabled transitions 16 [2023-10-12 17:22:19,613 INFO L134 LiptonReduction]: Checked pairs total: 18 [2023-10-12 17:22:19,613 INFO L136 LiptonReduction]: Total number of compositions: 3 [2023-10-12 17:22:19,625 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:22:19,625 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:22:19,625 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:22:19,625 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:22:19,626 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:22:19,626 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:22:19,626 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:22:19,626 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:22:19,626 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 places, 11 transitions, 34 flow [2023-10-12 17:22:19,630 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:19,630 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:19,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:19,630 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:19,633 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:22:19,633 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 places, 11 transitions, 34 flow [2023-10-12 17:22:19,634 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:19,634 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:22:19,634 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:22:19,634 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:19,639 INFO L748 eck$LassoCheckResult]: Stem: 24#[$Ultimate##0]true [43] $Ultimate##0-->L48: Formula: (and (= v_i1_5 0) (= v_i2_7 v_i1_5) (= v_i1_5 v_x1_3) (= v_i1_5 v_x2_5)) InVars {i1=v_i1_5, i2=v_i2_7, x1=v_x1_3, x2=v_x2_5} OutVars{i1=v_i1_5, i2=v_i2_7, x1=v_x1_3, x2=v_x2_5} AuxVars[] AssignedVars[] 26#[L48]true [54] L48-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 28#[L48-1, L20]true [2023-10-12 17:22:19,639 INFO L750 eck$LassoCheckResult]: Loop: 28#[L48-1, L20]true [49] L20-->L20: Formula: (and (= (+ v_i1_11 1) v_i1_10) (= v_x1_9 (select v_f_12 v_x1_10)) (< v_i1_11 (* v_n_13 2))) InVars {i1=v_i1_11, x1=v_x1_10, n=v_n_13, f=v_f_12} OutVars{i1=v_i1_10, x1=v_x1_9, n=v_n_13, f=v_f_12} AuxVars[] AssignedVars[i1, x1] 28#[L48-1, L20]true [2023-10-12 17:22:19,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:19,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2348, now seen corresponding path program 1 times [2023-10-12 17:22:19,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:19,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616804117] [2023-10-12 17:22:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:19,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:19,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:19,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:19,743 INFO L85 PathProgramCache]: Analyzing trace with hash 80, now seen corresponding path program 1 times [2023-10-12 17:22:19,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:19,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088517723] [2023-10-12 17:22:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:19,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:19,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:19,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:19,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:19,773 INFO L85 PathProgramCache]: Analyzing trace with hash 72837, now seen corresponding path program 1 times [2023-10-12 17:22:19,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:19,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819465831] [2023-10-12 17:22:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:19,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:19,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:19,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:19,869 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:19,869 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:19,869 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:19,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:19,870 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:19,870 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:19,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:19,870 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:19,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: unroll-2.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:22:19,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:19,870 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:19,883 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 17:22:19,899 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 17:22:19,902 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 17:22:19,905 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 17:22:19,912 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 17:22:19,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:19,982 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:19,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:19,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:19,989 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 17:22:19,996 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 17:22:19,996 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 17:22:20,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,016 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:20,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:20,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:20,038 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 17:22:20,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,042 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 17:22:20,047 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 17:22:20,048 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 17:22:20,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:20,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:20,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:20,092 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 17:22:20,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,093 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 17:22:20,104 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 17:22:20,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:20,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:20,124 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 17:22:20,137 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:20,143 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 17:22:20,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,145 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 17:22:20,156 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 17:22:20,161 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 17:22:20,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,171 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:20,171 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:20,197 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:20,205 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:22:20,205 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:22:20,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,209 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 17:22:20,211 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 17:22:20,250 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:20,259 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:22:20,259 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:20,260 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, i1) = 2*n - 1*i1 Supporting invariants [] [2023-10-12 17:22:20,269 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 17:22:20,272 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:22:20,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:20,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:22:20,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:20,334 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:22:20,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:20,338 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 17:22:20,375 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 17:22:20,380 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 17:22:20,446 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 112 transitions. [2023-10-12 17:22:20,448 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:20,450 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:20,452 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 17:22:20,456 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 17:22:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2023-10-12 17:22:20,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:22:20,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:20,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:22:20,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:20,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:22:20,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:20,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:20,486 INFO L124 PetriNetUnfolderBase]: 31/63 cut-off events. [2023-10-12 17:22:20,486 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-10-12 17:22:20,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 63 events. 31/63 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 135 event pairs, 1 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 96. Up to 21 conditions per place. [2023-10-12 17:22:20,487 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:20,495 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:20,496 INFO L430 stractBuchiCegarLoop]: Abstraction has has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:20,496 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:22:20,496 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 places, 124 transitions, 640 flow [2023-10-12 17:22:20,508 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:22:20,509 INFO L124 PetriNetUnfolderBase]: 19/32 cut-off events. [2023-10-12 17:22:20,509 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-10-12 17:22:20,509 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:22:20,509 INFO L748 eck$LassoCheckResult]: Stem: 24#[$Ultimate##0]true [43] $Ultimate##0-->L48: Formula: (and (= v_i1_5 0) (= v_i2_7 v_i1_5) (= v_i1_5 v_x1_3) (= v_i1_5 v_x2_5)) InVars {i1=v_i1_5, i2=v_i2_7, x1=v_x1_3, x2=v_x2_5} OutVars{i1=v_i1_5, i2=v_i2_7, x1=v_x1_3, x2=v_x2_5} AuxVars[] AssignedVars[] 26#[L48]true [54] L48-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 28#[L48-1, L20]true [57] L48-1-->L33: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 73#[L49, L33, L20]true [2023-10-12 17:22:20,510 INFO L750 eck$LassoCheckResult]: Loop: 73#[L49, L33, L20]true [51] L33-->L33: Formula: (and (= (select v_f_14 (select v_f_14 v_x2_21)) v_x2_19) (= (+ 2 v_i2_24) v_i2_22) (< v_i2_24 (* v_n_15 2))) InVars {i2=v_i2_24, n=v_n_15, f=v_f_14, x2=v_x2_21} OutVars{i2=v_i2_22, n=v_n_15, f=v_f_14, x2=v_x2_19} AuxVars[] AssignedVars[x2, i2] 73#[L49, L33, L20]true [51] L33-->L33: Formula: (and (= (select v_f_14 (select v_f_14 v_x2_21)) v_x2_19) (= (+ 2 v_i2_24) v_i2_22) (< v_i2_24 (* v_n_15 2))) InVars {i2=v_i2_24, n=v_n_15, f=v_f_14, x2=v_x2_21} OutVars{i2=v_i2_22, n=v_n_15, f=v_f_14, x2=v_x2_19} AuxVars[] AssignedVars[x2, i2] 73#[L49, L33, L20]true [2023-10-12 17:22:20,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:20,513 INFO L85 PathProgramCache]: Analyzing trace with hash 72845, now seen corresponding path program 1 times [2023-10-12 17:22:20,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:20,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234017434] [2023-10-12 17:22:20,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:20,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:20,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:20,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:20,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:20,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2593, now seen corresponding path program 1 times [2023-10-12 17:22:20,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:20,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043329598] [2023-10-12 17:22:20,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:20,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:20,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:20,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:20,546 INFO L85 PathProgramCache]: Analyzing trace with hash 70005677, now seen corresponding path program 1 times [2023-10-12 17:22:20,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:22:20,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138787631] [2023-10-12 17:22:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:22:20,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:22:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:20,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:22:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:22:20,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:22:20,699 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:22:20,700 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:22:20,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:22:20,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:22:20,700 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:22:20,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:22:20,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:22:20,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: unroll-2.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:22:20,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:22:20,700 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:22:20,702 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 17:22:20,704 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 17:22:20,707 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 17:22:20,709 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 17:22:20,743 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 17:22:20,749 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 17:22:20,752 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 17:22:20,823 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:22:20,823 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:22:20,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,824 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 17:22:20,828 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 17:22:20,831 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 17:22:20,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:20,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:20,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:20,859 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 17:22:20,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,861 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 17:22:20,863 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 17:22:20,865 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 17:22:20,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:20,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:20,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:20,896 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 17:22:20,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,898 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 17:22:20,901 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 17:22:20,903 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 17:22:20,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:20,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:20,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:20,947 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 17:22:20,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,949 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:22:20,956 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 17:22:20,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:20,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:22:20,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:20,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:20,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:20,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:22:20,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:22:20,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:20,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:22:20,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:22:20,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:20,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:20,987 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 17:22:21,014 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 17:22:21,018 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 17:22:21,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:21,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:21,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:21,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:21,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:21,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:21,034 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 17:22:21,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:21,055 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 17:22:21,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:21,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:21,056 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 17:22:21,059 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 17:22:21,061 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 17:22:21,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:21,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:22:21,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:21,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:21,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:21,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:22:21,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:22:21,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:21,102 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 17:22:21,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:21,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:21,105 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 17:22:21,110 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 17:22:21,115 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 17:22:21,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:21,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:22:21,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:21,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:21,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:21,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:22:21,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:22:21,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:22:21,145 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 17:22:21,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:21,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:21,146 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 17:22:21,156 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 17:22:21,163 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 17:22:21,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:22:21,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:22:21,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:22:21,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:22:21,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:22:21,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:22:21,197 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:22:21,206 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:22:21,206 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:22:21,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:22:21,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:22:21,208 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 17:22:21,210 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 17:22:21,212 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:22:21,234 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:22:21,235 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:22:21,235 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, n) = -1*i2 + 2*n Supporting invariants [] [2023-10-12 17:22:21,238 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 17:22:21,240 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:22:21,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:22:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:21,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:22:21,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:22:21,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:22:21,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:22:21,295 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 17:22:21,296 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 17:22:21,297 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 17:22:21,348 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 5 states and 112 transitions. [2023-10-12 17:22:21,348 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:22:21,363 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:22:21,364 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 17:22:21,365 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 17:22:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2023-10-12 17:22:21,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:22:21,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:21,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:22:21,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:21,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 80 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:22:21,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:22:21,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:21,418 INFO L124 PetriNetUnfolderBase]: 67/136 cut-off events. [2023-10-12 17:22:21,418 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-10-12 17:22:21,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 136 events. 67/136 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 469 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 240. Up to 48 conditions per place. [2023-10-12 17:22:21,419 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:21,442 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:21,442 INFO L430 stractBuchiCegarLoop]: Abstraction has has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:21,442 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:22:21,442 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 36 places, 1408 transitions, 10176 flow [2023-10-12 17:22:21,478 INFO L124 PetriNetUnfolderBase]: 67/136 cut-off events. [2023-10-12 17:22:21,478 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-10-12 17:22:21,479 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:22:21,484 INFO L201 PluginConnector]: Adding new model unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:22:21 BoogieIcfgContainer [2023-10-12 17:22:21,484 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:22:21,485 INFO L158 Benchmark]: Toolchain (without parser) took 2337.03ms. Allocated memory was 173.0MB in the beginning and 247.5MB in the end (delta: 74.4MB). Free memory was 125.0MB in the beginning and 180.8MB in the end (delta: -55.8MB). Peak memory consumption was 19.8MB. Max. memory is 8.0GB. [2023-10-12 17:22:21,485 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 173.0MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:22:21,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.84ms. Allocated memory is still 173.0MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:22:21,488 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 173.0MB. Free memory was 123.2MB in the beginning and 122.5MB in the end (delta: 756.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:22:21,491 INFO L158 Benchmark]: RCFGBuilder took 273.58ms. Allocated memory is still 173.0MB. Free memory was 122.2MB in the beginning and 111.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:22:21,491 INFO L158 Benchmark]: BuchiAutomizer took 2014.88ms. Allocated memory was 173.0MB in the beginning and 247.5MB in the end (delta: 74.4MB). Free memory was 111.4MB in the beginning and 180.8MB in the end (delta: -69.4MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. [2023-10-12 17:22:21,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.25ms. Allocated memory is still 173.0MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.84ms. Allocated memory is still 173.0MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 173.0MB. Free memory was 123.2MB in the beginning and 122.5MB in the end (delta: 756.3kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 273.58ms. Allocated memory is still 173.0MB. Free memory was 122.2MB in the beginning and 111.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2014.88ms. Allocated memory was 173.0MB in the beginning and 247.5MB in the end (delta: 74.4MB). Free memory was 111.4MB in the beginning and 180.8MB in the end (delta: -69.4MB). Peak memory consumption was 6.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * n + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n + -1 * i2 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.3s. 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, 66 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 30 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital39 mio100 ax100 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf95 smp100 dnf100 smp100 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - 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: 0.0s, 18 PlacesBefore, 16 PlacesAfterwards, 13 TransitionsBefore, 11 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, independent: 18, independent conditional: 0, independent unconditional: 18, 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: 6, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 6, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 18, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, 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 17:22:21,512 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 17:22:21,714 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...