/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/sumsuminc.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:06:47,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:06:47,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:06:47,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:06:47,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:06:47,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:06:47,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:06:47,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:06:47,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:06:47,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:06:47,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:06:47,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:06:47,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:06:47,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:06:47,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:06:47,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:06:47,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:06:47,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:06:47,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:06:47,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:06:47,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:06:47,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:06:47,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:06:47,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:06:47,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:06:47,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:06:47,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:06:47,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:06:47,811 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 15:06:47,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:06:47,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:06:47,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:06:47,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:06:47,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:06:47,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:06:47,833 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:06:47,833 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:06:47,833 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:06:47,833 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:06:47,833 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:06:47,833 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:06:47,834 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:06:47,834 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 15:06:47,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:06:47,834 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:06:47,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:06:47,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:06:47,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:06:47,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:06:47,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:06:47,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:06:47,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:06:47,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:06:47,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:06:47,837 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:06:47,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:06:48,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:06:48,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:06:48,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:06:48,077 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:06:48,078 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:06:48,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sumsuminc.bpl [2022-09-29 15:06:48,079 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sumsuminc.bpl' [2022-09-29 15:06:48,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:06:48,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:06:48,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:48,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:06:48,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:06:48,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,136 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 15:06:48,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:48,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:06:48,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:06:48,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:06:48,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:06:48,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:06:48,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:06:48,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:06:48,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/1) ... [2022-09-29 15:06:48,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:48,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:48,197 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 15:06:48,212 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 15:06:48,240 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum1 given in one single declaration [2022-09-29 15:06:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure sum1 [2022-09-29 15:06:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sum1 [2022-09-29 15:06:48,241 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sum2 given in one single declaration [2022-09-29 15:06:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure sum2 [2022-09-29 15:06:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sum2 [2022-09-29 15:06:48,241 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:06:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:06:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:06:48,242 INFO L124 BoogieDeclarations]: Specification and implementation of procedure inc given in one single declaration [2022-09-29 15:06:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2022-09-29 15:06:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2022-09-29 15:06:48,243 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 15:06:48,291 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:06:48,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:06:48,447 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:06:48,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:06:48,479 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 15:06:48,481 INFO L202 PluginConnector]: Adding new model sumsuminc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:48 BoogieIcfgContainer [2022-09-29 15:06:48,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:06:48,496 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:06:48,496 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:06:48,501 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:06:48,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:48,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:48" (1/2) ... [2022-09-29 15:06:48,503 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3874f5a8 and model type sumsuminc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:06:48, skipping insertion in model container [2022-09-29 15:06:48,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:48,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sumsuminc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:48" (2/2) ... [2022-09-29 15:06:48,508 INFO L322 chiAutomizerObserver]: Analyzing ICFG sumsuminc.bpl [2022-09-29 15:06:48,560 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 15:06:48,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 83 flow [2022-09-29 15:06:48,629 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:48,629 INFO L123 PetriNetUnfolderBase]: 3/25 cut-off events. [2022-09-29 15:06:48,629 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:06:48,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 25 events. 3/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-09-29 15:06:48,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 31 transitions, 83 flow [2022-09-29 15:06:48,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 25 transitions, 65 flow [2022-09-29 15:06:48,637 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:06:48,648 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 25 transitions, 65 flow [2022-09-29 15:06:48,650 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 25 transitions, 65 flow [2022-09-29 15:06:48,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 25 transitions, 65 flow [2022-09-29 15:06:48,657 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:48,657 INFO L123 PetriNetUnfolderBase]: 3/25 cut-off events. [2022-09-29 15:06:48,657 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:06:48,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 25 events. 3/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-09-29 15:06:48,658 INFO L116 LiptonReduction]: Number of co-enabled transitions 290 [2022-09-29 15:06:48,888 INFO L131 LiptonReduction]: Checked pairs total: 146 [2022-09-29 15:06:48,889 INFO L133 LiptonReduction]: Total number of compositions: 9 [2022-09-29 15:06:48,900 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:06:48,900 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:06:48,900 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:06:48,900 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:06:48,900 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:06:48,900 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:06:48,900 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:06:48,900 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 15:06:48,901 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 23 places, 16 transitions, 47 flow [2022-09-29 15:06:48,905 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 23 places, 16 transitions, 47 flow [2022-09-29 15:06:48,906 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:48,907 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:48,907 INFO L123 PetriNetUnfolderBase]: 0/3 cut-off events. [2022-09-29 15:06:48,907 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:48,923 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:48,926 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:06:48,926 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 23 places, 16 transitions, 47 flow [2022-09-29 15:06:48,928 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 23 places, 16 transitions, 47 flow [2022-09-29 15:06:48,928 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:48,928 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:48,929 INFO L123 PetriNetUnfolderBase]: 0/3 cut-off events. [2022-09-29 15:06:48,929 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:48,929 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:48,933 INFO L733 eck$LassoCheckResult]: Stem: 39#[ULTIMATE.startENTRY]true [95] ULTIMATE.startENTRY-->sum1ENTRY: Formula: (= v_sum1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{sum1Thread1of1ForFork0_x=v_sum1Thread1of1ForFork0_x_2, sum1Thread1of1ForFork0_thidvar0=v_sum1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[sum1Thread1of1ForFork0_x, sum1Thread1of1ForFork0_thidvar0] 41#[L64, sum1ENTRY]true [104] sum1ENTRY-->L21-1: Formula: (and (= v_i1_15 0) (= 0 v_sum1_10)) InVars {} OutVars{sum1=v_sum1_10, i1=v_i1_15} AuxVars[] AssignedVars[sum1, i1] 43#[L21-1, L64]true [2022-09-29 15:06:48,934 INFO L735 eck$LassoCheckResult]: Loop: 43#[L21-1, L64]true [110] L21-1-->L21-1: Formula: (and (= (+ (select v_A_19 v_i1_18) v_sum1_15) v_sum1_14) (< v_i1_18 v_N_13) (= (+ v_i1_18 1) v_i1_17)) InVars {sum1=v_sum1_15, A=v_A_19, N=v_N_13, i1=v_i1_18} OutVars{sum1=v_sum1_14, A=v_A_19, N=v_N_13, i1=v_i1_17} AuxVars[] AssignedVars[sum1, i1] 43#[L21-1, L64]true [2022-09-29 15:06:48,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:48,938 INFO L85 PathProgramCache]: Analyzing trace with hash 4010, now seen corresponding path program 1 times [2022-09-29 15:06:48,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:48,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596988650] [2022-09-29 15:06:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:48,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,028 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:49,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash 141, now seen corresponding path program 1 times [2022-09-29 15:06:49,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:49,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217018630] [2022-09-29 15:06:49,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:49,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:49,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:49,070 INFO L85 PathProgramCache]: Analyzing trace with hash 124420, now seen corresponding path program 1 times [2022-09-29 15:06:49,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:49,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858147413] [2022-09-29 15:06:49,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:49,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,089 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:49,164 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:49,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:49,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:49,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:49,164 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:06:49,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:49,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:49,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: sumsuminc.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:06:49,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:49,165 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:49,177 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 15:06:49,185 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 15:06:49,202 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 15:06:49,256 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:49,260 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:06:49,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:49,267 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 15:06:49,276 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 15:06:49,276 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 15:06:49,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:49,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:06:49,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:49,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:49,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:49,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:06:49,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:06:49,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:49,304 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 15:06:49,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:49,306 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 15:06:49,307 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 15:06:49,308 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 15:06:49,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:49,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:49,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:49,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:49,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:49,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:49,359 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:06:49,371 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-09-29 15:06:49,371 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:06:49,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:49,431 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 15:06:49,438 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:06:49,448 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 15:06:49,458 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:06:49,459 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:06:49,459 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, i1) = 1*N - 1*i1 Supporting invariants [] [2022-09-29 15:06:49,475 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 15:06:49,478 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:06:49,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:49,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:06:49,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:49,527 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:06:49,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:49,528 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 15:06:49,551 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 15:06:49,554 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 15:06:49,649 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 349 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:06:49,650 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:06:49,654 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:06:49,656 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 15:06:49,660 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 15:06:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2022-09-29 15:06:49,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 2 letters. Loop has 1 letters. [2022-09-29 15:06:49,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:49,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:06:49,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:49,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 2 letters. Loop has 2 letters. [2022-09-29 15:06:49,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:49,666 INFO L428 stractBuchiCegarLoop]: Abstraction has has 35 places, 272 transitions, 1358 flow [2022-09-29 15:06:49,666 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:06:49,666 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 35 places, 272 transitions, 1358 flow [2022-09-29 15:06:49,669 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 35 places, 272 transitions, 1358 flow [2022-09-29 15:06:49,670 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:49,672 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 35 places, 272 transitions, 1358 flow [2022-09-29 15:06:49,673 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:49,674 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 35 places, 272 transitions, 1358 flow [2022-09-29 15:06:49,677 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:49,677 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:49,677 INFO L123 PetriNetUnfolderBase]: 4/14 cut-off events. [2022-09-29 15:06:49,677 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:06:49,677 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:49,678 INFO L733 eck$LassoCheckResult]: Stem: 39#[ULTIMATE.startENTRY]true [95] ULTIMATE.startENTRY-->sum1ENTRY: Formula: (= v_sum1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{sum1Thread1of1ForFork0_x=v_sum1Thread1of1ForFork0_x_2, sum1Thread1of1ForFork0_thidvar0=v_sum1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[sum1Thread1of1ForFork0_x, sum1Thread1of1ForFork0_thidvar0] 41#[L64, sum1ENTRY]true [98] L64-->sum2ENTRY: Formula: (and (= 2 v_sum2Thread1of1ForFork1_thidvar0_2) (= 2 v_sum2Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{sum2Thread1of1ForFork1_thidvar0=v_sum2Thread1of1ForFork1_thidvar0_2, sum2Thread1of1ForFork1_thidvar1=v_sum2Thread1of1ForFork1_thidvar1_2, sum2Thread1of1ForFork1_y=v_sum2Thread1of1ForFork1_y_2} AuxVars[] AssignedVars[sum2Thread1of1ForFork1_thidvar0, sum2Thread1of1ForFork1_thidvar1, sum2Thread1of1ForFork1_y] 89#[sum2ENTRY, sum1ENTRY, L65]true [107] sum2ENTRY-->L36-1: Formula: (and (= 0 v_sum2_12) (= v_i2_17 0)) InVars {} OutVars{sum2=v_sum2_12, i2=v_i2_17} AuxVars[] AssignedVars[sum2, i2] 91#[L36-1, sum1ENTRY, L65]true [2022-09-29 15:06:49,678 INFO L735 eck$LassoCheckResult]: Loop: 91#[L36-1, sum1ENTRY, L65]true [109] L36-1-->L36-1: Formula: (and (= (+ v_i2_20 1) v_i2_19) (< v_i2_20 v_N_11) (= (+ (select v_A_17 v_i2_20) v_sum2_15) v_sum2_14)) InVars {A=v_A_17, sum2=v_sum2_15, N=v_N_11, i2=v_i2_20} OutVars{A=v_A_17, sum2=v_sum2_14, N=v_N_11, i2=v_i2_19} AuxVars[] AssignedVars[sum2, i2] 91#[L36-1, sum1ENTRY, L65]true [2022-09-29 15:06:49,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:49,678 INFO L85 PathProgramCache]: Analyzing trace with hash 124231, now seen corresponding path program 1 times [2022-09-29 15:06:49,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:49,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183026828] [2022-09-29 15:06:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:49,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,683 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:49,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:49,688 INFO L85 PathProgramCache]: Analyzing trace with hash 140, now seen corresponding path program 1 times [2022-09-29 15:06:49,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:49,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319609245] [2022-09-29 15:06:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:49,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,692 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:49,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:49,697 INFO L85 PathProgramCache]: Analyzing trace with hash 3851270, now seen corresponding path program 1 times [2022-09-29 15:06:49,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:49,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930858992] [2022-09-29 15:06:49,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:49,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,703 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:49,709 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:49,764 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:49,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:49,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:49,765 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:49,765 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:06:49,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:49,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:49,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: sumsuminc.bpl_BEv2_Iteration2_Lasso [2022-09-29 15:06:49,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:49,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:49,766 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 15:06:49,769 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 15:06:49,771 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 15:06:49,781 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 15:06:49,784 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 15:06:49,786 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 15:06:49,840 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:49,840 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:06:49,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:49,842 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 15:06:49,843 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 15:06:49,845 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 15:06:49,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:49,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:06:49,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:49,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:49,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:49,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:06:49,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:06:49,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:49,888 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 15:06:49,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:49,890 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 15:06:49,900 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 15:06:49,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:49,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:06:49,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:49,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:49,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:49,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:06:49,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:06:49,912 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 15:06:49,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:49,946 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 15:06:49,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:49,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:49,951 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 15:06:49,962 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 15:06:49,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:49,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:49,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:49,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:49,977 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:49,977 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:49,979 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 15:06:49,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:50,020 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 15:06:50,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:50,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:50,023 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 15:06:50,030 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 15:06:50,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:50,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:50,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:50,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:50,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:50,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:50,049 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 15:06:50,050 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:06:50,068 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-09-29 15:06:50,068 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:06:50,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:50,116 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 15:06:50,117 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 15:06:50,118 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:06:50,124 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:06:50,124 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:06:50,124 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, N) = -1*i2 + 1*N Supporting invariants [] [2022-09-29 15:06:50,145 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 15:06:50,146 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:06:50,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:50,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:06:50,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:50,188 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:06:50,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:50,188 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 15:06:50,189 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 15:06:50,189 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 15:06:50,298 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 349 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:06:50,298 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:06:50,342 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:06:50,343 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 15:06:50,344 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 15:06:50,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2022-09-29 15:06:50,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:06:50,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:50,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:06:50,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:50,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 116 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 15:06:50,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:50,346 INFO L428 stractBuchiCegarLoop]: Abstraction has has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,346 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 15:06:50,346 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,364 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,373 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,377 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,384 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,416 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,427 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,429 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,437 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,449 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,455 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,470 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,481 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,514 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,528 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,530 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,559 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,564 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,568 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,569 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,574 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,577 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,584 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,586 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 47 places, 4608 transitions, 32508 flow [2022-09-29 15:06:50,595 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 15:06:50,607 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:50,607 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:50,607 INFO L123 PetriNetUnfolderBase]: 188/263 cut-off events. [2022-09-29 15:06:50,607 INFO L124 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2022-09-29 15:06:50,607 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:50,608 INFO L733 eck$LassoCheckResult]: Stem: 39#[ULTIMATE.startENTRY]true [95] ULTIMATE.startENTRY-->sum1ENTRY: Formula: (= v_sum1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{sum1Thread1of1ForFork0_x=v_sum1Thread1of1ForFork0_x_2, sum1Thread1of1ForFork0_thidvar0=v_sum1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[sum1Thread1of1ForFork0_x, sum1Thread1of1ForFork0_thidvar0] 41#[L64, sum1ENTRY]true [98] L64-->sum2ENTRY: Formula: (and (= 2 v_sum2Thread1of1ForFork1_thidvar0_2) (= 2 v_sum2Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{sum2Thread1of1ForFork1_thidvar0=v_sum2Thread1of1ForFork1_thidvar0_2, sum2Thread1of1ForFork1_thidvar1=v_sum2Thread1of1ForFork1_thidvar1_2, sum2Thread1of1ForFork1_y=v_sum2Thread1of1ForFork1_y_2} AuxVars[] AssignedVars[sum2Thread1of1ForFork1_thidvar0, sum2Thread1of1ForFork1_thidvar1, sum2Thread1of1ForFork1_y] 89#[sum2ENTRY, sum1ENTRY, L65]true [101] L65-->incENTRY: Formula: (and (= 3 v_incThread1of1ForFork2_thidvar1_2) (= 3 v_incThread1of1ForFork2_thidvar2_2) (= 3 v_incThread1of1ForFork2_thidvar0_2)) InVars {} OutVars{incThread1of1ForFork2_thidvar2=v_incThread1of1ForFork2_thidvar2_2, incThread1of1ForFork2_thidvar1=v_incThread1of1ForFork2_thidvar1_2, incThread1of1ForFork2_j=v_incThread1of1ForFork2_j_12, incThread1of1ForFork2_thidvar0=v_incThread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[incThread1of1ForFork2_thidvar2, incThread1of1ForFork2_thidvar1, incThread1of1ForFork2_j, incThread1of1ForFork2_thidvar0] 136#[incENTRY, L66, sum2ENTRY, sum1ENTRY]true [88] incENTRY-->L51-1: Formula: (= v_incThread1of1ForFork2_j_1 0) InVars {} OutVars{incThread1of1ForFork2_j=v_incThread1of1ForFork2_j_1} AuxVars[] AssignedVars[incThread1of1ForFork2_j] 138#[L66, L51-1, sum2ENTRY, sum1ENTRY]true [2022-09-29 15:06:50,608 INFO L735 eck$LassoCheckResult]: Loop: 138#[L66, L51-1, sum2ENTRY, sum1ENTRY]true [112] L51-1-->L51-1: Formula: (and (< v_incThread1of1ForFork2_j_16 v_N_17) (let ((.cse0 (< v_incThread1of1ForFork2_j_16 v_i1_23)) (.cse1 (< v_incThread1of1ForFork2_j_16 v_i2_23))) (or (and (= v_incThread1of1ForFork2_j_16 v_incThread1of1ForFork2_j_15) (= v_A_21 v_A_22) (or (not .cse0) (not .cse1))) (and .cse0 .cse1 (= v_incThread1of1ForFork2_j_15 (+ v_incThread1of1ForFork2_j_16 1)) (= v_A_21 (store v_A_22 v_incThread1of1ForFork2_j_16 (+ (select v_A_22 v_incThread1of1ForFork2_j_16) 1))))))) InVars {A=v_A_22, incThread1of1ForFork2_j=v_incThread1of1ForFork2_j_16, N=v_N_17, i1=v_i1_23, i2=v_i2_23} OutVars{A=v_A_21, incThread1of1ForFork2_j=v_incThread1of1ForFork2_j_15, N=v_N_17, i1=v_i1_23, i2=v_i2_23} AuxVars[] AssignedVars[A, incThread1of1ForFork2_j] 138#[L66, L51-1, sum2ENTRY, sum1ENTRY]true [2022-09-29 15:06:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash 3851063, now seen corresponding path program 1 times [2022-09-29 15:06:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:50,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847110] [2022-09-29 15:06:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:50,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:50,613 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:50,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:50,618 INFO L85 PathProgramCache]: Analyzing trace with hash 143, now seen corresponding path program 1 times [2022-09-29 15:06:50,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:50,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209037623] [2022-09-29 15:06:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:50,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:50,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:50,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash 119383065, now seen corresponding path program 1 times [2022-09-29 15:06:50,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:50,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501797388] [2022-09-29 15:06:50,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:50,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:50,653 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:50,656 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 15:06:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:50,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:50,838 INFO L202 PluginConnector]: Adding new model sumsuminc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:06:50 BoogieIcfgContainer [2022-09-29 15:06:50,839 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:06:50,840 INFO L158 Benchmark]: Toolchain (without parser) took 2736.19ms. Allocated memory was 179.3MB in the beginning and 224.4MB in the end (delta: 45.1MB). Free memory was 138.4MB in the beginning and 174.5MB in the end (delta: -36.1MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:50,840 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 179.3MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:06:50,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.37ms. Allocated memory is still 179.3MB. Free memory was 138.3MB in the beginning and 136.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:50,841 INFO L158 Benchmark]: Boogie Preprocessor took 23.90ms. Allocated memory is still 179.3MB. Free memory was 136.8MB in the beginning and 135.8MB in the end (delta: 943.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:50,841 INFO L158 Benchmark]: RCFGBuilder took 330.96ms. Allocated memory is still 179.3MB. Free memory was 135.8MB in the beginning and 126.1MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-29 15:06:50,842 INFO L158 Benchmark]: BuchiAutomizer took 2342.76ms. Allocated memory was 179.3MB in the beginning and 224.4MB in the end (delta: 45.1MB). Free memory was 125.9MB in the beginning and 174.5MB in the end (delta: -48.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:06:50,844 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 0.18ms. Allocated memory is still 179.3MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.37ms. Allocated memory is still 179.3MB. Free memory was 138.3MB in the beginning and 136.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.90ms. Allocated memory is still 179.3MB. Free memory was 136.8MB in the beginning and 135.8MB in the end (delta: 943.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 330.96ms. Allocated memory is still 179.3MB. Free memory was 135.8MB in the beginning and 126.1MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2342.76ms. Allocated memory was 179.3MB in the beginning and 224.4MB in the end (delta: 45.1MB). Free memory was 125.9MB in the beginning and 174.5MB in the end (delta: -48.6MB). There was no memory consumed. 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) and one nonterminating remainder module.One deterministic module has affine ranking function N + -1 * i1 and consists of 3 locations. One deterministic module has affine ranking function -1 * i2 + N and consists of 3 locations. The remainder module has 32508 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.2s. 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, 152 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 112 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 80 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp80 ukn91 mio100 lsp57 div100 bol100 ite100 ukn100 eq183 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 153ms 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 49]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i1=0, i2=0, j=0, N=1, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 49]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L64] FORK 0 fork 1 sum1(); [L65] FORK 0 fork 2, 2 sum2(); [L66] FORK 0 fork 3, 3, 3 inc(); [L48] 3 j := 0; Loop: [L49] COND TRUE j < N [L51] COND FALSE !(j < i1 && j < i2) End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 32 PlacesBefore, 23 PlacesAfterwards, 25 TransitionsBefore, 16 TransitionsAfterwards, 290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 146 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 146, positive: 146, positive conditional: 0, positive unconditional: 146, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 138, positive: 138, positive conditional: 0, positive unconditional: 138, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 138, positive: 138, positive conditional: 0, positive unconditional: 138, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 146, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 138, unknown conditional: 0, unknown unconditional: 138] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be incorrect! [2022-09-29 15:06:50,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...