/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/POPL2023/sum_diff_incr_decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:21:07,849 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:21:07,914 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 17:21:07,939 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:21:07,940 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:21:07,940 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:21:07,941 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:21:07,941 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:21:07,942 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:21:07,945 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:21:07,945 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:21:07,945 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:21:07,945 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:21:07,946 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:21:07,947 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:21:07,947 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:21:07,947 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:21:07,947 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:21:07,947 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:21:07,947 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:21:07,947 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:21:07,948 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:21:07,949 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:21:07,949 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:21:07,949 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:21:07,949 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:21:07,949 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:21:07,949 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:21:07,950 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:21:07,950 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:21:07,951 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:21:07,951 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:21:07,951 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:21:07,952 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:21:07,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:21:08,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:21:08,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:21:08,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:21:08,158 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:21:08,159 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:21:08,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum_diff_incr_decr.bpl [2023-10-12 17:21:08,160 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum_diff_incr_decr.bpl' [2023-10-12 17:21:08,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:21:08,184 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:21:08,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:08,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:21:08,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:21:08,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,209 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:21:08,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:08,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:21:08,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:21:08,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:21:08,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:21:08,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:21:08,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:21:08,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:21:08,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/1) ... [2023-10-12 17:21:08,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:08,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:08,270 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 17:21:08,273 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 17:21:08,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:21:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:21:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:21:08,299 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2023-10-12 17:21:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2023-10-12 17:21:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2023-10-12 17:21:08,299 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2023-10-12 17:21:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2023-10-12 17:21:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2023-10-12 17:21:08,300 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 17:21:08,336 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:21:08,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:21:08,481 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:21:08,489 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:21:08,489 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:21:08,491 INFO L201 PluginConnector]: Adding new model sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:08 BoogieIcfgContainer [2023-10-12 17:21:08,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:21:08,492 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:21:08,492 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:21:08,495 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:21:08,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:08,495 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:08" (1/2) ... [2023-10-12 17:21:08,496 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36f04f0d and model type sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:21:08, skipping insertion in model container [2023-10-12 17:21:08,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:08,496 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:08" (2/2) ... [2023-10-12 17:21:08,497 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum_diff_incr_decr.bpl [2023-10-12 17:21:08,545 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:21:08,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 25 transitions, 66 flow [2023-10-12 17:21:08,579 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-10-12 17:21:08,579 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:21:08,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2023-10-12 17:21:08,582 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 25 transitions, 66 flow [2023-10-12 17:21:08,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2023-10-12 17:21:08,588 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:21:08,597 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 21 transitions, 54 flow [2023-10-12 17:21:08,599 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 21 transitions, 54 flow [2023-10-12 17:21:08,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 21 transitions, 54 flow [2023-10-12 17:21:08,604 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-10-12 17:21:08,604 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:21:08,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2023-10-12 17:21:08,605 INFO L119 LiptonReduction]: Number of co-enabled transitions 110 [2023-10-12 17:21:08,786 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-10-12 17:21:08,786 INFO L136 LiptonReduction]: Total number of compositions: 8 [2023-10-12 17:21:08,795 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:21:08,796 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:21:08,796 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:21:08,796 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:21:08,796 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:21:08,796 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:21:08,796 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:21:08,796 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:21:08,797 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 places, 13 transitions, 38 flow [2023-10-12 17:21:08,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:08,804 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:21:08,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:08,804 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:08,807 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:21:08,808 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 places, 13 transitions, 38 flow [2023-10-12 17:21:08,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:08,809 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:21:08,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:08,809 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:08,812 INFO L748 eck$LassoCheckResult]: Stem: 32#[$Ultimate##0]true [42] $Ultimate##0-->L45: Formula: (and (< v_ULTIMATE.start_m_1 v_N_1) (<= 0 v_ULTIMATE.start_m_1)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} AuxVars[] AssignedVars[] 34#[L45]true [67] L45-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_14, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0] 36#[L45-1, $Ultimate##0]true [52] $Ultimate##0-->L16-1: Formula: (= v_T1Thread1of1ForFork0_i_1 0) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i] 38#[L16-1, L45-1]true [2023-10-12 17:21:08,813 INFO L750 eck$LassoCheckResult]: Loop: 38#[L16-1, L45-1]true [79] L16-1-->L16-1: Formula: (and (= v_B_33 (store v_B_34 v_T1Thread1of1ForFork0_i_28 (+ (- 1) (select v_B_34 v_T1Thread1of1ForFork0_i_28)))) (= (+ v_T1Thread1of1ForFork0_i_28 1) v_T1Thread1of1ForFork0_i_27) (< v_T1Thread1of1ForFork0_i_28 v_N_12) (= (store v_A_34 v_T1Thread1of1ForFork0_i_28 (+ (select v_A_34 v_T1Thread1of1ForFork0_i_28) 1)) v_A_33)) InVars {A=v_A_34, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_28, N=v_N_12, B=v_B_34} OutVars{A=v_A_33, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_27, N=v_N_12, B=v_B_33} AuxVars[] AssignedVars[A, T1Thread1of1ForFork0_i, B] 38#[L16-1, L45-1]true [2023-10-12 17:21:08,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:08,816 INFO L85 PathProgramCache]: Analyzing trace with hash 72282, now seen corresponding path program 1 times [2023-10-12 17:21:08,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:08,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191258339] [2023-10-12 17:21:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:08,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:08,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:08,928 INFO L85 PathProgramCache]: Analyzing trace with hash 110, now seen corresponding path program 1 times [2023-10-12 17:21:08,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:08,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910283403] [2023-10-12 17:21:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:08,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:08,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:08,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2240821, now seen corresponding path program 1 times [2023-10-12 17:21:08,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:08,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908721171] [2023-10-12 17:21:08,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:08,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:09,072 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:21:09,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:21:09,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:21:09,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:21:09,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:21:09,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:21:09,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:21:09,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:21:09,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:21:09,074 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:21:09,086 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 17:21:09,112 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 17:21:09,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:21:09,170 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:21:09,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,173 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 17:21:09,196 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 17:21:09,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,222 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 17:21:09,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:21:09,255 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:21:09,255 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:21:09,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,259 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 17:21:09,293 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:21:09,302 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 17:21:09,312 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:21:09,313 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:21:09,313 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2023-10-12 17:21:09,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:21:09,320 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:21:09,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:09,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:21:09,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:09,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:21:09,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:09,371 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 17:21:09,407 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 17:21:09,409 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 17:21:09,475 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 192 transitions. [2023-10-12 17:21:09,476 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:21:09,478 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:21:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:21:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 17:21:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2023-10-12 17:21:09,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:21:09,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:09,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:21:09,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:09,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:21:09,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:09,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 144 transitions, 708 flow [2023-10-12 17:21:09,500 INFO L124 PetriNetUnfolderBase]: 55/106 cut-off events. [2023-10-12 17:21:09,500 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-10-12 17:21:09,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 106 events. 55/106 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 297 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 164. Up to 33 conditions per place. [2023-10-12 17:21:09,501 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 28 places, 144 transitions, 708 flow [2023-10-12 17:21:09,511 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 28 places, 144 transitions, 708 flow [2023-10-12 17:21:09,511 INFO L430 stractBuchiCegarLoop]: Abstraction has has 28 places, 144 transitions, 708 flow [2023-10-12 17:21:09,511 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:21:09,511 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 places, 144 transitions, 708 flow [2023-10-12 17:21:09,527 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:09,527 INFO L124 PetriNetUnfolderBase]: 23/40 cut-off events. [2023-10-12 17:21:09,528 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-10-12 17:21:09,528 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:09,528 INFO L748 eck$LassoCheckResult]: Stem: 32#[$Ultimate##0]true [42] $Ultimate##0-->L45: Formula: (and (< v_ULTIMATE.start_m_1 v_N_1) (<= 0 v_ULTIMATE.start_m_1)) InVars {ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} OutVars{ULTIMATE.start_m=v_ULTIMATE.start_m_1, N=v_N_1} AuxVars[] AssignedVars[] 34#[L45]true [67] L45-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_14, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0] 36#[L45-1, $Ultimate##0]true [70] L45-1-->$Ultimate##0: Formula: (and (= v_T2Thread1of1ForFork1_thidvar1_2 2) (= v_T2Thread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2, T2Thread1of1ForFork1_thidvar1=v_T2Thread1of1ForFork1_thidvar1_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_16} AuxVars[] AssignedVars[T2Thread1of1ForFork1_thidvar0, T2Thread1of1ForFork1_thidvar1, T2Thread1of1ForFork1_j] 87#[L46, $Ultimate##0, $Ultimate##0]true [52] $Ultimate##0-->L16-1: Formula: (= v_T1Thread1of1ForFork0_i_1 0) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i] 89#[L46, L16-1, $Ultimate##0]true [58] $Ultimate##0-->L31-1: Formula: (= v_T2Thread1of1ForFork1_j_1 0) InVars {} OutVars{T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_1} AuxVars[] AssignedVars[T2Thread1of1ForFork1_j] 91#[L31-1, L46, L16-1]true [80] L31-1-->L31-1: Formula: (let ((.cse0 (select v_A_41 v_T2Thread1of1ForFork1_j_34)) (.cse1 (select v_B_41 v_T2Thread1of1ForFork1_j_34))) (and (= (store v_C_20 v_T2Thread1of1ForFork1_j_34 (+ .cse0 .cse1)) v_C_19) (< v_T2Thread1of1ForFork1_j_34 v_N_16) (= (+ v_T2Thread1of1ForFork1_j_34 1) v_T2Thread1of1ForFork1_j_33) (= v_D_15 (store v_D_16 v_T2Thread1of1ForFork1_j_34 (+ .cse0 (* (- 1) .cse1)))))) InVars {A=v_A_41, N=v_N_16, D=v_D_16, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_34, C=v_C_20, B=v_B_41} OutVars{A=v_A_41, N=v_N_16, D=v_D_15, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_33, C=v_C_19, B=v_B_41} AuxVars[] AssignedVars[D, T2Thread1of1ForFork1_j, C] 91#[L31-1, L46, L16-1]true [2023-10-12 17:21:09,528 INFO L750 eck$LassoCheckResult]: Loop: 91#[L31-1, L46, L16-1]true [80] L31-1-->L31-1: Formula: (let ((.cse0 (select v_A_41 v_T2Thread1of1ForFork1_j_34)) (.cse1 (select v_B_41 v_T2Thread1of1ForFork1_j_34))) (and (= (store v_C_20 v_T2Thread1of1ForFork1_j_34 (+ .cse0 .cse1)) v_C_19) (< v_T2Thread1of1ForFork1_j_34 v_N_16) (= (+ v_T2Thread1of1ForFork1_j_34 1) v_T2Thread1of1ForFork1_j_33) (= v_D_15 (store v_D_16 v_T2Thread1of1ForFork1_j_34 (+ .cse0 (* (- 1) .cse1)))))) InVars {A=v_A_41, N=v_N_16, D=v_D_16, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_34, C=v_C_20, B=v_B_41} OutVars{A=v_A_41, N=v_N_16, D=v_D_15, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_33, C=v_C_19, B=v_B_41} AuxVars[] AssignedVars[D, T2Thread1of1ForFork1_j, C] 91#[L31-1, L46, L16-1]true [80] L31-1-->L31-1: Formula: (let ((.cse0 (select v_A_41 v_T2Thread1of1ForFork1_j_34)) (.cse1 (select v_B_41 v_T2Thread1of1ForFork1_j_34))) (and (= (store v_C_20 v_T2Thread1of1ForFork1_j_34 (+ .cse0 .cse1)) v_C_19) (< v_T2Thread1of1ForFork1_j_34 v_N_16) (= (+ v_T2Thread1of1ForFork1_j_34 1) v_T2Thread1of1ForFork1_j_33) (= v_D_15 (store v_D_16 v_T2Thread1of1ForFork1_j_34 (+ .cse0 (* (- 1) .cse1)))))) InVars {A=v_A_41, N=v_N_16, D=v_D_16, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_34, C=v_C_20, B=v_B_41} OutVars{A=v_A_41, N=v_N_16, D=v_D_15, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_33, C=v_C_19, B=v_B_41} AuxVars[] AssignedVars[D, T2Thread1of1ForFork1_j, C] 91#[L31-1, L46, L16-1]true [2023-10-12 17:21:09,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2141026146, now seen corresponding path program 1 times [2023-10-12 17:21:09,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:09,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466042211] [2023-10-12 17:21:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:09,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:09,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash 3521, now seen corresponding path program 1 times [2023-10-12 17:21:09,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:09,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231238676] [2023-10-12 17:21:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:09,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:09,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,564 INFO L85 PathProgramCache]: Analyzing trace with hash -236788962, now seen corresponding path program 2 times [2023-10-12 17:21:09,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:09,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621075683] [2023-10-12 17:21:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:09,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:09,728 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:21:09,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:21:09,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:21:09,729 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:21:09,729 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:21:09,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:21:09,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:21:09,729 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:21:09,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:21:09,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:21:09,731 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 17:21:09,735 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 17:21:09,737 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 17:21:09,739 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 17:21:09,741 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 17:21:09,853 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:21:09,853 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:21:09,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,855 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 17:21:09,873 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 17:21:09,874 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 17:21:09,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,919 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 17:21:09,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,920 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 17:21:09,941 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 17:21:09,942 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 17:21:09,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,991 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 17:21:09,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,009 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 17:21:10,011 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 17:21:10,013 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 17:21:10,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:10,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:10,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,062 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 17:21:10,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,077 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 17:21:10,081 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 17:21:10,082 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 17:21:10,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:10,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:10,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,114 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 17:21:10,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,115 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 17:21:10,121 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 17:21:10,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,131 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 17:21:10,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-10-12 17:21:10,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,149 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 17:21:10,152 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 17:21:10,154 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 17:21:10,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:21:10,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,183 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 17:21:10,185 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 17:21:10,189 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 17:21:10,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,196 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,199 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 17:21:10,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,203 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 17:21:10,206 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 17:21:10,206 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 17:21:10,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:21:10,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,222 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 17:21:10,224 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 17:21:10,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:21:10,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,247 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 17:21:10,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,249 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 17:21:10,251 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 17:21:10,252 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 17:21:10,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-10-12 17:21:10,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,280 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 17:21:10,282 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 17:21:10,284 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 17:21:10,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,323 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 17:21:10,330 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 17:21:10,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,331 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 17:21:10,333 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 17:21:10,335 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 17:21:10,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:10,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:10,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:10,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:10,363 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 17:21:10,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,365 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:21:10,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:21:10,369 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 17:21:10,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:10,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:10,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:10,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:10,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:10,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:10,396 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:21:10,406 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:21:10,406 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:21:10,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:10,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:10,408 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:21:10,415 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:21:10,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:21:10,441 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:21:10,441 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:21:10,442 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2023-10-12 17:21:10,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:21:10,451 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:21:10,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:10,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:21:10,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:10,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:21:10,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:10,495 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 17:21:10,496 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 17:21:10,496 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:21:10,601 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 253 transitions. [2023-10-12 17:21:10,601 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:21:10,613 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:21:10,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:21:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:21:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2023-10-12 17:21:10,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:21:10,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:10,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 8 letters. Loop has 2 letters. [2023-10-12 17:21:10,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:10,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 6 letters. Loop has 4 letters. [2023-10-12 17:21:10,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:10,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 2088 transitions, 14424 flow [2023-10-12 17:21:10,672 INFO L124 PetriNetUnfolderBase]: 164/314 cut-off events. [2023-10-12 17:21:10,673 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-10-12 17:21:10,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 314 events. 164/314 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1344 event pairs, 1 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 756. Up to 110 conditions per place. [2023-10-12 17:21:10,673 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 42 places, 2088 transitions, 14424 flow [2023-10-12 17:21:10,694 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 42 places, 2088 transitions, 14424 flow [2023-10-12 17:21:10,694 INFO L430 stractBuchiCegarLoop]: Abstraction has has 42 places, 2088 transitions, 14424 flow [2023-10-12 17:21:10,694 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:21:10,694 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 42 places, 2088 transitions, 14424 flow [2023-10-12 17:21:10,747 INFO L124 PetriNetUnfolderBase]: 164/314 cut-off events. [2023-10-12 17:21:10,748 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-10-12 17:21:10,748 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:21:10,752 INFO L201 PluginConnector]: Adding new model sum_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:21:10 BoogieIcfgContainer [2023-10-12 17:21:10,754 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:21:10,755 INFO L158 Benchmark]: Toolchain (without parser) took 2570.96ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 145.2MB in the beginning and 141.0MB in the end (delta: 4.2MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,758 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 197.1MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:21:10,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.53ms. Allocated memory is still 197.1MB. Free memory was 145.2MB in the beginning and 143.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,758 INFO L158 Benchmark]: Boogie Preprocessor took 17.94ms. Allocated memory is still 197.1MB. Free memory was 143.7MB in the beginning and 142.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,759 INFO L158 Benchmark]: RCFGBuilder took 260.36ms. Allocated memory is still 197.1MB. Free memory was 142.6MB in the beginning and 164.8MB in the end (delta: -22.2MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,759 INFO L158 Benchmark]: BuchiAutomizer took 2262.39ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 164.6MB in the beginning and 141.0MB in the end (delta: 23.6MB). Peak memory consumption was 63.1MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,766 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 197.1MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.53ms. Allocated memory is still 197.1MB. Free memory was 145.2MB in the beginning and 143.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.94ms. Allocated memory is still 197.1MB. Free memory was 143.7MB in the beginning and 142.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 260.36ms. Allocated memory is still 197.1MB. Free memory was 142.6MB in the beginning and 164.8MB in the end (delta: -22.2MB). Peak memory consumption was 14.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2262.39ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 164.6MB in the beginning and 141.0MB in the end (delta: 23.6MB). Peak memory consumption was 63.1MB. 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 * i and consists of 3 locations. One deterministic module has affine ranking function N + -1 * j and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.4s. Construction of modules took 0.1s. 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, 148 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 78 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital79 mio100 ax100 hnf100 lsp91 ukn39 mio100 lsp83 div100 bol100 ite100 ukn100 eq150 hnf93 smp100 dnf100 smp100 tf100 neg100 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 142ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.2s - 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: 0.2s, 26 PlacesBefore, 18 PlacesAfterwards, 21 TransitionsBefore, 13 TransitionsAfterwards, 110 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 69, independent: 67, independent conditional: 0, independent unconditional: 67, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, 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 17:21:10,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:21:10,982 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...