/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/buchiAutomizer/concurrent-buchi-pn-semanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:06:42,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:06:42,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:06:42,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:06:42,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:06:42,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:06:42,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:06:42,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:06:42,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:06:42,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:06:42,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:06:42,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:06:42,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:06:42,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:06:42,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:06:42,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:06:42,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:06:42,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:06:42,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:06:42,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:06:42,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:06:42,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:06:42,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:06:42,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:06:42,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:06:42,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:06:42,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:06:42,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:06:42,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-buchi-pn-semanticLbe.epf [2022-09-29 15:06:42,475 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:06:42,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:06:42,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:06:42,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:06:42,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:06:42,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:06:42,477 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:06:42,477 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:06:42,477 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:06:42,477 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 15:06:42,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:06:42,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:06:42,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:06:42,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:06:42,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:06:42,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:06:42,480 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:06:42,480 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:06:42,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:06:42,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:06:42,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:06:42,687 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:06:42,689 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:06:42,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl [2022-09-29 15:06:42,690 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl' [2022-09-29 15:06:42,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:06:42,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:06:42,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:42,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:06:42,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:06:42,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,731 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 15:06:42,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:42,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:06:42,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:06:42,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:06:42,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:06:42,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:06:42,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:06:42,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:06:42,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/1) ... [2022-09-29 15:06:42,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:42,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:42,780 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) [2022-09-29 15:06:42,797 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 [2022-09-29 15:06:42,806 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:06:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:06:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:06:42,807 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2022-09-29 15:06:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2022-09-29 15:06:42,807 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2022-09-29 15:06:42,807 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2022-09-29 15:06:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2022-09-29 15:06:42,807 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2022-09-29 15:06:42,807 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 15:06:42,841 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:06:42,842 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:06:42,948 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:06:42,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:06:42,959 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 15:06:42,961 INFO L202 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:42 BoogieIcfgContainer [2022-09-29 15:06:42,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:06:42,962 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:06:42,963 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:06:42,966 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:06:42,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:42,966 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:42" (1/2) ... [2022-09-29 15:06:42,967 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@284cbd54 and model type sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:06:42, skipping insertion in model container [2022-09-29 15:06:42,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:42,967 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:42" (2/2) ... [2022-09-29 15:06:42,968 INFO L322 chiAutomizerObserver]: Analyzing ICFG sum2_diff_incr_decr.bpl [2022-09-29 15:06:43,031 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 15:06:43,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 70 flow [2022-09-29 15:06:43,100 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:43,100 INFO L123 PetriNetUnfolderBase]: 2/23 cut-off events. [2022-09-29 15:06:43,100 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:06:43,103 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 36 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. [2022-09-29 15:06:43,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 70 flow [2022-09-29 15:06:43,112 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2022-09-29 15:06:43,115 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:06:43,125 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 58 flow [2022-09-29 15:06:43,127 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 58 flow [2022-09-29 15:06:43,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 58 flow [2022-09-29 15:06:43,134 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:43,135 INFO L123 PetriNetUnfolderBase]: 2/23 cut-off events. [2022-09-29 15:06:43,135 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:06:43,135 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 36 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. [2022-09-29 15:06:43,135 INFO L116 LiptonReduction]: Number of co-enabled transitions 160 [2022-09-29 15:06:43,445 INFO L131 LiptonReduction]: Checked pairs total: 123 [2022-09-29 15:06:43,445 INFO L133 LiptonReduction]: Total number of compositions: 11 [2022-09-29 15:06:43,454 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:06:43,454 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:06:43,454 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:06:43,454 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:06:43,454 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:06:43,454 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:06:43,454 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:06:43,454 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 15:06:43,455 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 17 places, 12 transitions, 36 flow [2022-09-29 15:06:43,457 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 17 places, 12 transitions, 36 flow [2022-09-29 15:06:43,458 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:43,458 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:43,458 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:43,458 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:43,459 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:43,462 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:06:43,462 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 17 places, 12 transitions, 36 flow [2022-09-29 15:06:43,464 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 17 places, 12 transitions, 36 flow [2022-09-29 15:06:43,464 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:43,464 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:43,464 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:43,464 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:43,464 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:43,477 INFO L733 eck$LassoCheckResult]: Stem: 34#[ULTIMATE.startENTRY]true [74] ULTIMATE.startENTRY-->T1ENTRY: 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#[T1ENTRY, L46]true [83] T1ENTRY-->L17-1: Formula: (and (= v_T1Thread1of1ForFork0_sum_11 0) (= v_T1Thread1of1ForFork0_i_21 0)) InVars {} OutVars{T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_21, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_11} AuxVars[] AssignedVars[T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_sum] 38#[L17-1, L46]true [2022-09-29 15:06:43,478 INFO L735 eck$LassoCheckResult]: Loop: 38#[L17-1, L46]true [90] L17-1-->L17-1: Formula: (and (= v_T1Thread1of1ForFork0_i_33 (+ v_T1Thread1of1ForFork0_i_34 1)) (= (store v_B_35 v_T1Thread1of1ForFork0_i_34 (+ (- 1) (select v_B_35 v_T1Thread1of1ForFork0_i_34))) v_B_34) (= v_A_34 (store v_A_35 v_T1Thread1of1ForFork0_i_34 (+ (select v_A_35 v_T1Thread1of1ForFork0_i_34) 1))) (< v_T1Thread1of1ForFork0_i_34 v_N_19) (= v_T1Thread1of1ForFork0_sum_17 (+ (select v_B_34 v_T1Thread1of1ForFork0_i_34) v_T1Thread1of1ForFork0_sum_18 (select v_A_34 v_T1Thread1of1ForFork0_i_34)))) InVars {A=v_A_35, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_34, N=v_N_19, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_18, B=v_B_35} OutVars{A=v_A_34, T1Thread1of1ForFork0_i=v_T1Thread1of1ForFork0_i_33, N=v_N_19, T1Thread1of1ForFork0_sum=v_T1Thread1of1ForFork0_sum_17, B=v_B_34} AuxVars[] AssignedVars[A, T1Thread1of1ForFork0_i, T1Thread1of1ForFork0_sum, B] 38#[L17-1, L46]true [2022-09-29 15:06:43,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash 3338, now seen corresponding path program 1 times [2022-09-29 15:06:43,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:43,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020305036] [2022-09-29 15:06:43,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:43,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:43,539 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:43,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:43,560 INFO L85 PathProgramCache]: Analyzing trace with hash 121, now seen corresponding path program 1 times [2022-09-29 15:06:43,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:43,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527929553] [2022-09-29 15:06:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:43,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:43,579 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:43,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:43,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:43,603 INFO L85 PathProgramCache]: Analyzing trace with hash 103568, now seen corresponding path program 1 times [2022-09-29 15:06:43,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:43,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059904970] [2022-09-29 15:06:43,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:43,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:43,621 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:43,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:43,707 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:43,707 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:43,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:43,707 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:43,708 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:06:43,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:43,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:43,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:43,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:06:43,708 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:43,708 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:43,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:43,786 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:43,822 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:43,825 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:06:43,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:43,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:43,828 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) [2022-09-29 15:06:43,838 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 [2022-09-29 15:06:43,843 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 [2022-09-29 15:06:43,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:43,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:43,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:43,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:43,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:43,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:43,879 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:06:43,900 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 15:06:43,901 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:06:43,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:43,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:43,927 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) [2022-09-29 15:06:43,929 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 [2022-09-29 15:06:43,929 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:06:43,950 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:06:43,951 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:06:43,952 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2022-09-29 15:06:43,970 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 [2022-09-29 15:06:43,972 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:06:43,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:44,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:06:44,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:44,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:06:44,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 15:06:44,043 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 [2022-09-29 15:06:44,045 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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) [2022-09-29 15:06:44,130 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 6 states and 328 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:06:44,131 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:06:44,135 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:06:44,136 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 [2022-09-29 15:06:44,141 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) [2022-09-29 15:06:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2022-09-29 15:06:44,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 2 letters. Loop has 1 letters. [2022-09-29 15:06:44,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:44,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:06:44,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:44,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 2 letters. Loop has 2 letters. [2022-09-29 15:06:44,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:44,150 INFO L428 stractBuchiCegarLoop]: Abstraction has has 29 places, 194 transitions, 974 flow [2022-09-29 15:06:44,150 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:06:44,150 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 29 places, 194 transitions, 974 flow [2022-09-29 15:06:44,152 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 29 places, 194 transitions, 974 flow [2022-09-29 15:06:44,153 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:44,156 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 29 places, 194 transitions, 974 flow [2022-09-29 15:06:44,158 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:44,159 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 29 places, 194 transitions, 974 flow [2022-09-29 15:06:44,162 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:44,162 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:44,162 INFO L123 PetriNetUnfolderBase]: 12/24 cut-off events. [2022-09-29 15:06:44,162 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:06:44,162 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:44,163 INFO L733 eck$LassoCheckResult]: Stem: 34#[ULTIMATE.startENTRY]true [74] ULTIMATE.startENTRY-->T1ENTRY: 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#[T1ENTRY, L46]true [77] L46-->T2ENTRY: 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] 84#[L47, T1ENTRY, T2ENTRY]true [86] T2ENTRY-->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] 86#[L47, T1ENTRY, L34-1]true [2022-09-29 15:06:44,163 INFO L735 eck$LassoCheckResult]: Loop: 86#[L47, T1ENTRY, L34-1]true [89] L34-1-->L34-1: Formula: (let ((.cse1 (select v_A_28 v_T2Thread1of1ForFork1_j_32)) (.cse0 (select v_B_28 v_T2Thread1of1ForFork1_j_32))) (and (= (+ v_T2Thread1of1ForFork1_j_32 1) v_T2Thread1of1ForFork1_j_31) (= (store v_D_12 v_T2Thread1of1ForFork1_j_32 (+ (* (- 1) .cse0) .cse1)) v_D_11) (= v_T2Thread1of1ForFork1_sum_21 (+ .cse1 v_T2Thread1of1ForFork1_sum_22 .cse0)) (< v_T2Thread1of1ForFork1_j_32 v_N_15))) InVars {A=v_A_28, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_22, N=v_N_15, D=v_D_12, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_32, B=v_B_28} OutVars{A=v_A_28, T2Thread1of1ForFork1_sum=v_T2Thread1of1ForFork1_sum_21, N=v_N_15, D=v_D_11, T2Thread1of1ForFork1_j=v_T2Thread1of1ForFork1_j_31, B=v_B_28} AuxVars[] AssignedVars[T2Thread1of1ForFork1_sum, D, T2Thread1of1ForFork1_j] 86#[L47, T1ENTRY, L34-1]true [2022-09-29 15:06:44,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:44,164 INFO L85 PathProgramCache]: Analyzing trace with hash 103378, now seen corresponding path program 1 times [2022-09-29 15:06:44,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:44,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578903408] [2022-09-29 15:06:44,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:44,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:44,170 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:44,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:44,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:44,178 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 1 times [2022-09-29 15:06:44,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:44,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860861077] [2022-09-29 15:06:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:44,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:44,190 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:44,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:44,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:44,202 INFO L85 PathProgramCache]: Analyzing trace with hash 3204807, now seen corresponding path program 1 times [2022-09-29 15:06:44,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:44,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192330448] [2022-09-29 15:06:44,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:44,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:44,224 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:44,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:44,281 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:44,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:44,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:44,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:44,282 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:06:44,282 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,282 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:44,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:44,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2022-09-29 15:06:44,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:44,282 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:44,283 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:44,286 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:44,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:44,289 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:44,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:44,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 15:06:44,355 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:44,355 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:06:44,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,356 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) [2022-09-29 15:06:44,358 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 [2022-09-29 15:06:44,359 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 [2022-09-29 15:06:44,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:44,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:44,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:44,403 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 [2022-09-29 15:06:44,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,404 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) [2022-09-29 15:06:44,405 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 [2022-09-29 15:06:44,407 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 [2022-09-29 15:06:44,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:06:44,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:06:44,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:06:44,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:44,446 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 [2022-09-29 15:06:44,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,448 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) [2022-09-29 15:06:44,448 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 [2022-09-29 15:06:44,450 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 [2022-09-29 15:06:44,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:44,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:44,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:44,497 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 [2022-09-29 15:06:44,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,498 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) [2022-09-29 15:06:44,508 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 [2022-09-29 15:06:44,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:44,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:44,527 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 [2022-09-29 15:06:44,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:44,556 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 [2022-09-29 15:06:44,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,557 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) [2022-09-29 15:06:44,558 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 [2022-09-29 15:06:44,560 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 [2022-09-29 15:06:44,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:06:44,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:06:44,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:06:44,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:44,600 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 [2022-09-29 15:06:44,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,602 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) [2022-09-29 15:06:44,603 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 [2022-09-29 15:06:44,604 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 [2022-09-29 15:06:44,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:06:44,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:06:44,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:06:44,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:44,655 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 [2022-09-29 15:06:44,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,657 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) [2022-09-29 15:06:44,658 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 [2022-09-29 15:06:44,659 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 [2022-09-29 15:06:44,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:44,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:44,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:44,708 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 [2022-09-29 15:06:44,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,710 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) [2022-09-29 15:06:44,712 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 [2022-09-29 15:06:44,713 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 [2022-09-29 15:06:44,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:44,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:44,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:44,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:44,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:44,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:44,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:06:44,746 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-09-29 15:06:44,746 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:06:44,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:44,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:44,776 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) [2022-09-29 15:06:44,783 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:06:44,791 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 [2022-09-29 15:06:44,800 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:06:44,801 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:06:44,801 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2022-09-29 15:06:44,818 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 [2022-09-29 15:06:44,819 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:06:44,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:44,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:06:44,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:44,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:06:44,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 15:06:44,847 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 [2022-09-29 15:06:44,847 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. 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) [2022-09-29 15:06:44,931 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. 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 6 states and 328 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:06:44,931 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:06:44,957 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:06:44,958 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 [2022-09-29 15:06:44,958 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) [2022-09-29 15:06:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2022-09-29 15:06:44,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:06:44,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:44,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:06:44,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:44,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 108 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 15:06:44,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:44,960 INFO L428 stractBuchiCegarLoop]: Abstraction has has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:44,960 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 15:06:44,960 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:44,971 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:44,975 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:44,976 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:44,979 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:44,982 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:44,986 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:44,995 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,000 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,016 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,021 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,026 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,037 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 [2022-09-29 15:06:45,040 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,041 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,044 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,045 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,049 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,057 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 [2022-09-29 15:06:45,076 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,083 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,084 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,089 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,093 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,100 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,117 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 41 places, 3096 transitions, 21816 flow [2022-09-29 15:06:45,128 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:45,141 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:45,142 INFO L123 PetriNetUnfolderBase]: 188/308 cut-off events. [2022-09-29 15:06:45,142 INFO L124 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2022-09-29 15:06:45,143 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 15:06:45,143 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 15:06:45,144 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 15:06:45,146 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 15:06:45,147 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 15:06:45,147 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 15:06:45,158 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 15:06:45,159 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 15:06:45,159 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 15:06:45,169 INFO L202 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:06:45 BoogieIcfgContainer [2022-09-29 15:06:45,169 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:06:45,170 INFO L158 Benchmark]: Toolchain (without parser) took 2457.54ms. Allocated memory was 205.5MB in the beginning and 288.4MB in the end (delta: 82.8MB). Free memory was 167.9MB in the beginning and 239.7MB in the end (delta: -71.8MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. [2022-09-29 15:06:45,171 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 205.5MB. Free memory is still 169.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:06:45,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.85ms. Allocated memory is still 205.5MB. Free memory was 167.9MB in the beginning and 166.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 15:06:45,171 INFO L158 Benchmark]: Boogie Preprocessor took 11.92ms. Allocated memory is still 205.5MB. Free memory was 166.4MB in the beginning and 165.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:45,173 INFO L158 Benchmark]: RCFGBuilder took 215.97ms. Allocated memory is still 205.5MB. Free memory was 165.4MB in the beginning and 156.4MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-29 15:06:45,175 INFO L158 Benchmark]: BuchiAutomizer took 2207.00ms. Allocated memory was 205.5MB in the beginning and 288.4MB in the end (delta: 82.8MB). Free memory was 156.3MB in the beginning and 239.7MB in the end (delta: -83.4MB). Peak memory consumption was 46.2MB. Max. memory is 8.0GB. [2022-09-29 15:06:45,180 INFO L339 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 0.09ms. Allocated memory is still 205.5MB. Free memory is still 169.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.85ms. Allocated memory is still 205.5MB. Free memory was 167.9MB in the beginning and 166.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.92ms. Allocated memory is still 205.5MB. Free memory was 166.4MB in the beginning and 165.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 215.97ms. Allocated memory is still 205.5MB. Free memory was 165.4MB in the beginning and 156.4MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2207.00ms. Allocated memory was 205.5MB in the beginning and 288.4MB in the end (delta: 82.8MB). Free memory was 156.3MB in the beginning and 239.7MB in the end (delta: -83.4MB). Peak memory consumption was 46.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 3 locations. One deterministic module has affine ranking function N + -1 * j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 1. 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 75 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital49 mio100 ax100 hnf100 lsp87 ukn44 mio100 lsp64 div100 bol100 ite100 ukn100 eq183 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 125ms 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: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 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: 116, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 97, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 97, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 116, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 97, unknown conditional: 0, unknown unconditional: 97] , 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 RESULT: Ultimate proved your program to be correct! [2022-09-29 15:06:45,205 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...