/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/sum2_diff_incr_decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:21:07,594 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:21:07,657 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 17:21:07,681 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:21:07,681 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:21:07,682 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:21:07,683 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:21:07,683 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:21:07,683 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:21:07,687 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:21:07,688 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:21:07,688 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:21:07,688 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:21:07,689 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:21:07,689 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:21:07,690 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:21:07,690 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:21:07,690 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:21:07,690 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:21:07,690 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:21:07,690 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:21:07,691 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:21:07,691 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:21:07,691 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:21:07,691 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:21:07,691 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:21:07,691 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:21:07,692 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:21:07,692 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:21:07,692 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:21:07,693 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:21:07,693 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:21:07,693 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:21:07,694 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:21:07,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:21:07,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:21:07,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:21:07,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:21:07,932 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:21:07,933 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:21:07,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl [2023-10-12 17:21:07,934 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl' [2023-10-12 17:21:07,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:21:07,958 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:21:07,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:07,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:21:07,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:21:07,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,982 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:21:07,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:21:07,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:21:07,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:21:07,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:21:07,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:07,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:08,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:08,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:21:08,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:21:08,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:21:08,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:21:08,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/1) ... [2023-10-12 17:21:08,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:08,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:08,043 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 17:21:08,053 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 17:21:08,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:21:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:21:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:21:08,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2023-10-12 17:21:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2023-10-12 17:21:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2023-10-12 17:21:08,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2023-10-12 17:21:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2023-10-12 17:21:08,075 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2023-10-12 17:21:08,075 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 17:21:08,116 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:21:08,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:21:08,186 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:21:08,194 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:21:08,195 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:21:08,196 INFO L201 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:08 BoogieIcfgContainer [2023-10-12 17:21:08,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:21:08,197 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:21:08,197 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:21:08,200 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:21:08,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:08,201 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:21:07" (1/2) ... [2023-10-12 17:21:08,202 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2865eb59 and model type sum2_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 17:21:08,202 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:21:08,202 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:21:08" (2/2) ... [2023-10-12 17:21:08,204 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum2_diff_incr_decr.bpl [2023-10-12 17:21:08,266 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-10-12 17:21:08,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 70 flow [2023-10-12 17:21:08,316 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2023-10-12 17:21:08,316 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:21:08,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2023-10-12 17:21:08,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 70 flow [2023-10-12 17:21:08,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2023-10-12 17:21:08,325 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:21:08,335 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 58 flow [2023-10-12 17:21:08,337 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 58 flow [2023-10-12 17:21:08,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 58 flow [2023-10-12 17:21:08,342 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2023-10-12 17:21:08,343 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-10-12 17:21:08,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2023-10-12 17:21:08,343 INFO L119 LiptonReduction]: Number of co-enabled transitions 160 [2023-10-12 17:21:08,571 INFO L134 LiptonReduction]: Checked pairs total: 123 [2023-10-12 17:21:08,571 INFO L136 LiptonReduction]: Total number of compositions: 11 [2023-10-12 17:21:08,580 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:21:08,580 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:21:08,581 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:21:08,581 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:21:08,581 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:21:08,581 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:21:08,581 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:21:08,581 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:21:08,581 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 places, 12 transitions, 36 flow [2023-10-12 17:21:08,584 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:08,584 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:21:08,584 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:08,585 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:08,587 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:21:08,587 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 places, 12 transitions, 36 flow [2023-10-12 17:21:08,588 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:08,588 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-10-12 17:21:08,588 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:21:08,588 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:08,591 INFO L748 eck$LassoCheckResult]: Stem: 34#[$Ultimate##0]true [74] $Ultimate##0-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_16, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_8} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0, T1Thread1of1ForFork0_sum] 36#[L46, $Ultimate##0]true [80] $Ultimate##0-->L17-1: Formula: (and (= v_T1Thread1of1ForFork0_sum_11 0) (= v_T1Thread1of1ForFork0_i_17 0)) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_17, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_11} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_sum] 38#[L17-1, L46]true [2023-10-12 17:21:08,591 INFO L750 eck$LassoCheckResult]: Loop: 38#[L17-1, L46]true [89] L17-1-->L17-1: Formula: (and (= (+ v_T1Thread1of1ForFork0_i_32 1) v_T1Thread1of1ForFork0_i_31) (= v_T1Thread1of1ForFork0_sum_17 (+ (select v_B_28 v_T1Thread1of1ForFork0_i_32) v_T1Thread1of1ForFork0_sum_18 (select v_A_28 v_T1Thread1of1ForFork0_i_32))) (= (store v_A_29 v_T1Thread1of1ForFork0_i_32 (+ (select v_A_29 v_T1Thread1of1ForFork0_i_32) 1)) v_A_28) (< v_T1Thread1of1ForFork0_i_32 v_N_15) (= v_B_28 (store v_B_29 v_T1Thread1of1ForFork0_i_32 (+ (- 1) (select v_B_29 v_T1Thread1of1ForFork0_i_32))))) InVars {A=v_A_29, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_32, N=v_N_15, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_18, B=v_B_29} OutVars{A=v_A_28, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_31, N=v_N_15, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_17, B=v_B_28} AuxVars[] AssignedVars[A, T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_sum, B] 38#[L17-1, L46]true [2023-10-12 17:21:08,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:08,601 INFO L85 PathProgramCache]: Analyzing trace with hash 3335, now seen corresponding path program 1 times [2023-10-12 17:21:08,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:08,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731951212] [2023-10-12 17:21:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:08,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:08,730 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 1 times [2023-10-12 17:21:08,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:08,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032393733] [2023-10-12 17:21:08,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:08,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:08,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash 103474, now seen corresponding path program 1 times [2023-10-12 17:21:08,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:08,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933815552] [2023-10-12 17:21:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:08,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:08,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:08,895 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:21:08,896 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:21:08,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:21:08,897 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:21:08,897 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:21:08,897 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:08,897 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:21:08,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:21:08,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:21:08,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:21:08,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:21:08,910 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 17:21:08,956 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 17:21:08,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:21:09,002 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:21:09,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,006 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 17:21:09,014 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 17:21:09,022 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 17:21:09,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,057 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:21:09,065 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:21:09,066 INFO L444 ModelExtractionUtils]: 7 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:21:09,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,076 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 17:21:09,077 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 17:21:09,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:21:09,086 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:21:09,087 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:21:09,087 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2023-10-12 17:21:09,094 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 17:21:09,096 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:21:09,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:09,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:21:09,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:09,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:21:09,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:09,145 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 17:21:09,190 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 17:21:09,191 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 17:21:09,281 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 220 transitions. [2023-10-12 17:21:09,283 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:21:09,286 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:21:09,287 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 17:21:09,292 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 17:21:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2023-10-12 17:21:09,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:21:09,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:09,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:21:09,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:09,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:21:09,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:09,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 132 transitions, 660 flow [2023-10-12 17:21:09,327 INFO L124 PetriNetUnfolderBase]: 55/105 cut-off events. [2023-10-12 17:21:09,328 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-10-12 17:21:09,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 105 events. 55/105 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 295 event pairs, 1 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 168. Up to 33 conditions per place. [2023-10-12 17:21:09,329 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 27 places, 132 transitions, 660 flow [2023-10-12 17:21:09,336 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 27 places, 132 transitions, 660 flow [2023-10-12 17:21:09,336 INFO L430 stractBuchiCegarLoop]: Abstraction has has 27 places, 132 transitions, 660 flow [2023-10-12 17:21:09,336 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:21:09,336 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 places, 132 transitions, 660 flow [2023-10-12 17:21:09,344 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:21:09,344 INFO L124 PetriNetUnfolderBase]: 13/26 cut-off events. [2023-10-12 17:21:09,344 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:21:09,344 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:21:09,345 INFO L748 eck$LassoCheckResult]: Stem: 34#[$Ultimate##0]true [74] $Ultimate##0-->$Ultimate##0: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_16, T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_8} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_thidvar0, T1Thread1of1ForFork0_sum] 36#[L46, $Ultimate##0]true [77] L46-->$Ultimate##0: Formula: (and (= v_T2Thread1of1ForFork1_thidvar1_2 2) (= v_T2Thread1of1ForFork1_thidvar0_2 2)) InVars {} OutVars{T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_8, T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2, T2Thread1of1ForFork1_thidvar1=v_T2Thread1of1ForFork1_thidvar1_2, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_16} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, T2Thread1of1ForFork1_thidvar0, T2Thread1of1ForFork1_thidvar1, T2Thread1of1ForFork1_j] 82#[L47, $Ultimate##0, $Ultimate##0]true [86] $Ultimate##0-->L34-1: Formula: (and (= v_T2Thread1of1ForFork1_sum_11 0) (= v_T2Thread1of1ForFork1_j_23 0)) InVars {} OutVars{T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_11, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_23} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, T2Thread1of1ForFork1_j] 84#[L47, $Ultimate##0, L34-1]true [2023-10-12 17:21:09,346 INFO L750 eck$LassoCheckResult]: Loop: 84#[L47, $Ultimate##0, L34-1]true [90] L34-1-->L34-1: Formula: (let ((.cse1 (select v_A_36 v_T2Thread1of1ForFork1_j_36)) (.cse0 (select v_B_36 v_T2Thread1of1ForFork1_j_36))) (and (= (store v_D_16 v_T2Thread1of1ForFork1_j_36 (+ (* (- 1) .cse0) .cse1)) v_D_15) (= (+ v_T2Thread1of1ForFork1_sum_22 .cse1 .cse0) v_T2Thread1of1ForFork1_sum_21) (< v_T2Thread1of1ForFork1_j_36 v_N_19) (= (+ v_T2Thread1of1ForFork1_j_36 1) v_T2Thread1of1ForFork1_j_35))) InVars {A=v_A_36, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_22, N=v_N_19, D=v_D_16, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_36, B=v_B_36} OutVars{A=v_A_36, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_21, N=v_N_19, D=v_D_15, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_35, B=v_B_36} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, D, T2Thread1of1ForFork1_j] 84#[L47, $Ultimate##0, L34-1]true [90] L34-1-->L34-1: Formula: (let ((.cse1 (select v_A_36 v_T2Thread1of1ForFork1_j_36)) (.cse0 (select v_B_36 v_T2Thread1of1ForFork1_j_36))) (and (= (store v_D_16 v_T2Thread1of1ForFork1_j_36 (+ (* (- 1) .cse0) .cse1)) v_D_15) (= (+ v_T2Thread1of1ForFork1_sum_22 .cse1 .cse0) v_T2Thread1of1ForFork1_sum_21) (< v_T2Thread1of1ForFork1_j_36 v_N_19) (= (+ v_T2Thread1of1ForFork1_j_36 1) v_T2Thread1of1ForFork1_j_35))) InVars {A=v_A_36, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_22, N=v_N_19, D=v_D_16, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_36, B=v_B_36} OutVars{A=v_A_36, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_21, N=v_N_19, D=v_D_15, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_35, B=v_B_36} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, D, T2Thread1of1ForFork1_j] 84#[L47, $Ultimate##0, L34-1]true [2023-10-12 17:21:09,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,349 INFO L85 PathProgramCache]: Analyzing trace with hash 103378, now seen corresponding path program 1 times [2023-10-12 17:21:09,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:09,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944306270] [2023-10-12 17:21:09,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:09,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:09,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,365 INFO L85 PathProgramCache]: Analyzing trace with hash 3841, now seen corresponding path program 1 times [2023-10-12 17:21:09,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:09,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054506581] [2023-10-12 17:21:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:09,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:09,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,390 INFO L85 PathProgramCache]: Analyzing trace with hash 99349138, now seen corresponding path program 1 times [2023-10-12 17:21:09,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:21:09,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836768809] [2023-10-12 17:21:09,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:21:09,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:21:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:21:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:21:09,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:21:09,493 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:21:09,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:21:09,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:21:09,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:21:09,493 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:21:09,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:21:09,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:21:09,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:21:09,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:21:09,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:21:09,496 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 17:21:09,499 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 17:21:09,504 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 17:21:09,506 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 17:21:09,508 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 17:21:09,510 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 17:21:09,585 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:21:09,585 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:21:09,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,589 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 17:21:09,591 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 17:21:09,593 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 17:21:09,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,624 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 17:21:09,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,626 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 17:21:09,628 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 17:21:09,629 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 17:21:09,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:09,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:09,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:09,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,657 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 17:21:09,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,665 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 17:21:09,669 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 17:21:09,670 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 17:21:09,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,706 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 17:21:09,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,707 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 17:21:09,710 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 17:21:09,712 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 17:21:09,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,743 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 17:21:09,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,744 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 17:21:09,745 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 17:21:09,747 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 17:21:09,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:09,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:09,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:09,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,774 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 17:21:09,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,777 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 17:21:09,790 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 17:21:09,791 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 17:21:09,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:21:09,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:21:09,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:21:09,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:21:09,818 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 17:21:09,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,820 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 17:21:09,827 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 17:21:09,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:21:09,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:21:09,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:21:09,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:21:09,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:21:09,838 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:21:09,842 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 17:21:09,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:21:09,856 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:21:09,856 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:21:09,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:21:09,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:21:09,899 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 17:21:09,900 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 17:21:09,901 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:21:09,930 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:21:09,930 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:21:09,930 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2023-10-12 17:21:09,936 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 17:21:09,940 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:21:09,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:21:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:09,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:21:09,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:21:09,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:21:09,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:21:09,977 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 17:21:09,978 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 17:21:09,978 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 17:21:10,081 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 7 states and 290 transitions. [2023-10-12 17:21:10,081 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:21:10,091 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:21:10,091 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 17:21:10,092 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 17:21:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2023-10-12 17:21:10,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 143 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:21:10,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:10,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 143 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:21:10,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:10,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 143 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:21:10,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:21:10,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 1896 transitions, 13272 flow [2023-10-12 17:21:10,151 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 17:21:10,168 INFO L124 PetriNetUnfolderBase]: 138/255 cut-off events. [2023-10-12 17:21:10,168 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-10-12 17:21:10,169 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 17:21:10,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 255 events. 138/255 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1017 event pairs, 1 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 591. Up to 92 conditions per place. [2023-10-12 17:21:10,169 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 41 places, 1896 transitions, 13272 flow [2023-10-12 17:21:10,190 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 41 places, 1896 transitions, 13272 flow [2023-10-12 17:21:10,190 INFO L430 stractBuchiCegarLoop]: Abstraction has has 41 places, 1896 transitions, 13272 flow [2023-10-12 17:21:10,190 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:21:10,190 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 places, 1896 transitions, 13272 flow [2023-10-12 17:21:10,225 INFO L124 PetriNetUnfolderBase]: 138/255 cut-off events. [2023-10-12 17:21:10,226 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-10-12 17:21:10,226 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:21:10,230 INFO L201 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:21:10 BoogieIcfgContainer [2023-10-12 17:21:10,231 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:21:10,231 INFO L158 Benchmark]: Toolchain (without parser) took 2273.04ms. Allocated memory was 217.1MB in the beginning and 280.0MB in the end (delta: 62.9MB). Free memory was 172.7MB in the beginning and 225.0MB in the end (delta: -52.3MB). Peak memory consumption was 79.9MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,232 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.27ms. Allocated memory is still 217.1MB. Free memory was 173.9MB in the beginning and 173.7MB in the end (delta: 180.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:21:10,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.14ms. Allocated memory is still 217.1MB. Free memory was 172.7MB in the beginning and 171.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,232 INFO L158 Benchmark]: Boogie Preprocessor took 13.43ms. Allocated memory is still 217.1MB. Free memory was 171.2MB in the beginning and 170.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,243 INFO L158 Benchmark]: RCFGBuilder took 195.57ms. Allocated memory is still 217.1MB. Free memory was 169.9MB in the beginning and 160.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,243 INFO L158 Benchmark]: BuchiAutomizer took 2033.47ms. Allocated memory was 217.1MB in the beginning and 280.0MB in the end (delta: 62.9MB). Free memory was 160.3MB in the beginning and 225.0MB in the end (delta: -64.7MB). Peak memory consumption was 67.3MB. Max. memory is 8.0GB. [2023-10-12 17:21:10,250 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 0.27ms. Allocated memory is still 217.1MB. Free memory was 173.9MB in the beginning and 173.7MB in the end (delta: 180.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.14ms. Allocated memory is still 217.1MB. Free memory was 172.7MB in the beginning and 171.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.43ms. Allocated memory is still 217.1MB. Free memory was 171.2MB in the beginning and 170.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 195.57ms. Allocated memory is still 217.1MB. Free memory was 169.9MB in the beginning and 160.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2033.47ms. Allocated memory was 217.1MB in the beginning and 280.0MB in the end (delta: 62.9MB). Free memory was 160.3MB in the beginning and 225.0MB in the end (delta: -64.7MB). Peak memory consumption was 67.3MB. 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 1.9s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. 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, 170 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 147 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 90 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital63 mio100 ax100 hnf100 lsp91 ukn36 mio100 lsp64 div100 bol100 ite100 ukn100 eq177 hnf97 smp100 dnf100 smp100 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 84ms VariablesStem: 1 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, 28 PlacesBefore, 17 PlacesAfterwards, 23 TransitionsBefore, 12 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 117, independent: 115, independent conditional: 0, independent unconditional: 115, 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: 98, independent: 96, independent conditional: 0, independent unconditional: 96, 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: 98, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 98, unknown conditional: 0, unknown unconditional: 98] , 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 17:21:10,268 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...