/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-automaton-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 15:00:23,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:00:23,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:00:23,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:00:23,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:00:23,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:00:23,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:00:23,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:00:23,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:00:23,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:00:23,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:00:23,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:00:23,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:00:23,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:00:23,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:00:23,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:00:23,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:00:23,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:00:23,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:00:23,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:00:23,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:00:23,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:00:23,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:00:23,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:00:23,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:00:23,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:00:23,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:00:23,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:00:23,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-09-29 15:00:23,951 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:00:23,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:00:23,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:00:23,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:00:23,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:00:23,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:00:23,953 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:00:23,953 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:00:23,953 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:00:23,953 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:00:23,953 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:00:23,954 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:00:23,954 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:00:23,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:00:23,954 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:00:23,954 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:00:23,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:00:23,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:00:23,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:00:23,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:00:23,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:00:23,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:00:23,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:00:23,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:00:23,957 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:00:23,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:00:24,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:00:24,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:00:24,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:00:24,209 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:00:24,210 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:00:24,211 INFO L432 ainManager$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 15:00:24,211 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum2_diff_incr_decr.bpl' [2022-09-29 15:00:24,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:00:24,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:00:24,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:24,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:00:24,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:00:24,252 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,263 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,275 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 15:00:24,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:24,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:00:24,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:00:24,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:00:24,287 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,288 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,289 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,289 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,293 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,298 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,300 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:00:24,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:00:24,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:00:24,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:00:24,308 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 03:00:24" (1/1) ... [2022-09-29 15:00:24,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:24,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:24,337 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 15:00:24,352 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 15:00:24,382 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:00:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:00:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:00:24,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2022-09-29 15:00:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2022-09-29 15:00:24,383 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2022-09-29 15:00:24,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2022-09-29 15:00:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2022-09-29 15:00:24,383 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2022-09-29 15:00:24,384 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 15:00:24,430 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:00:24,433 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:00:24,528 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:00:24,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:00:24,540 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 15:00:24,542 INFO L202 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:24 BoogieIcfgContainer [2022-09-29 15:00:24,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:00:24,543 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:00:24,543 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:00:24,576 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:00:24,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:24,577 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 03:00:24" (1/2) ... [2022-09-29 15:00:24,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c5089d3 and model type sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:00:24, skipping insertion in model container [2022-09-29 15:00:24,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:24,579 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 03:00:24" (2/2) ... [2022-09-29 15:00:24,580 INFO L322 chiAutomizerObserver]: Analyzing ICFG sum2_diff_incr_decr.bpl [2022-09-29 15:00:24,665 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 15:00:24,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 70 flow [2022-09-29 15:00:24,716 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:24,716 INFO L123 PetriNetUnfolderBase]: 2/23 cut-off events. [2022-09-29 15:00:24,716 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:00:24,719 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 15:00:24,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 70 flow [2022-09-29 15:00:24,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2022-09-29 15:00:24,726 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:00:24,739 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 58 flow [2022-09-29 15:00:24,742 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 58 flow [2022-09-29 15:00:24,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 58 flow [2022-09-29 15:00:24,749 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:24,749 INFO L123 PetriNetUnfolderBase]: 2/23 cut-off events. [2022-09-29 15:00:24,749 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 15:00:24,750 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 15:00:24,751 INFO L116 LiptonReduction]: Number of co-enabled transitions 160 [2022-09-29 15:00:25,049 INFO L131 LiptonReduction]: Checked pairs total: 123 [2022-09-29 15:00:25,049 INFO L133 LiptonReduction]: Total number of compositions: 11 [2022-09-29 15:00:25,070 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:00:25,070 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:00:25,070 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:00:25,070 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:00:25,070 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:00:25,070 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:00:25,070 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:00:25,070 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 15:00:25,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 15:00:25,099 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 15:00:25,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:25,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:25,103 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-09-29 15:00:25,103 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:25,103 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:00:25,104 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 18 states, but on-demand construction may add more states [2022-09-29 15:00:25,105 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2022-09-29 15:00:25,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:25,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:25,106 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-09-29 15:00:25,106 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:25,109 INFO L733 eck$LassoCheckResult]: Stem: 33#[ULTIMATE.startENTRY]don't care [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#[L46, T1ENTRY]don't care [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]don't care [2022-09-29 15:00:25,110 INFO L735 eck$LassoCheckResult]: Loop: 38#[L17-1, L46]don't care [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]don't care [2022-09-29 15:00:25,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:25,114 INFO L85 PathProgramCache]: Analyzing trace with hash 3338, now seen corresponding path program 1 times [2022-09-29 15:00:25,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:25,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605554466] [2022-09-29 15:00:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash 121, now seen corresponding path program 1 times [2022-09-29 15:00:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:25,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302144821] [2022-09-29 15:00:25,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:25,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,217 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:25,245 INFO L85 PathProgramCache]: Analyzing trace with hash 103568, now seen corresponding path program 1 times [2022-09-29 15:00:25,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:25,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117344133] [2022-09-29 15:00:25,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:25,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,258 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:25,416 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:25,416 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:25,416 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:25,416 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:25,416 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:00:25,417 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:25,417 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:25,417 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:25,417 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:00:25,417 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:25,417 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:25,431 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 15:00:25,469 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 15:00:25,512 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:25,516 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:00:25,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:25,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:25,518 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 15:00:25,522 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 15:00:25,545 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 15:00:25,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:25,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:25,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:25,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:25,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:25,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:25,571 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:00:25,605 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 15:00:25,606 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:00:25,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:25,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:25,615 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 15:00:25,616 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 15:00:25,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:00:25,626 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:00:25,627 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:00:25,627 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T1Thread1of1ForFork0_i, N) = -1*T1Thread1of1ForFork0_i + 1*N Supporting invariants [] [2022-09-29 15:00:25,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-09-29 15:00:25,647 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:00:25,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:25,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:00:25,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:25,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:00:25,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:25,704 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 15:00:25,739 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 15:00:25,745 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 18 states, but on-demand construction may add more states Second 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 15:00:25,821 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 18 states, but on-demand construction may add more states. Second 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 44 states and 100 transitions. Complement of second has 4 states. [2022-09-29 15:00:25,826 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 15:00:25,834 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 15:00:25,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2022-09-29 15:00:25,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 2 letters. Loop has 1 letters. [2022-09-29 15:00:25,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:25,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:00:25,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:25,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2022-09-29 15:00:25,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:25,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 100 transitions. [2022-09-29 15:00:25,848 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 15:00:25,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 22 states and 52 transitions. [2022-09-29 15:00:25,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-09-29 15:00:25,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-09-29 15:00:25,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 52 transitions. [2022-09-29 15:00:25,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 15:00:25,856 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 52 transitions. [2022-09-29 15:00:25,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 52 transitions. [2022-09-29 15:00:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2022-09-29 15:00:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 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 15:00:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 46 transitions. [2022-09-29 15:00:25,883 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 46 transitions. [2022-09-29 15:00:25,883 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 46 transitions. [2022-09-29 15:00:25,884 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:00:25,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 46 transitions. [2022-09-29 15:00:25,885 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2022-09-29 15:00:25,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:25,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:25,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 15:00:25,886 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:25,887 INFO L733 eck$LassoCheckResult]: Stem: 149#[ULTIMATE.startENTRY]don't care [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] 151#[L46, T1ENTRY]don't care [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] 159#[T1ENTRY, T2ENTRY, L47]don't care [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] 169#[T1ENTRY, L47, L34-1]don't care [2022-09-29 15:00:25,887 INFO L735 eck$LassoCheckResult]: Loop: 169#[T1ENTRY, L47, L34-1]don't care [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] 169#[T1ENTRY, L47, L34-1]don't care [2022-09-29 15:00:25,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:25,891 INFO L85 PathProgramCache]: Analyzing trace with hash 103378, now seen corresponding path program 1 times [2022-09-29 15:00:25,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:25,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156823785] [2022-09-29 15:00:25,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:25,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,904 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash 120, now seen corresponding path program 1 times [2022-09-29 15:00:25,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:25,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864228525] [2022-09-29 15:00:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:25,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,918 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:25,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:25,928 INFO L85 PathProgramCache]: Analyzing trace with hash 3204807, now seen corresponding path program 1 times [2022-09-29 15:00:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:25,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743411185] [2022-09-29 15:00:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,958 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:25,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:26,021 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:26,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:26,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:26,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:26,022 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:00:26,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:26,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:26,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum2_diff_incr_decr.bpl_BEv2_Iteration2_Lasso [2022-09-29 15:00:26,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:26,023 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:26,026 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 15:00:26,029 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 15:00:26,032 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 15:00:26,035 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 15:00:26,038 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 15:00:26,040 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 15:00:26,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:26,117 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:00:26,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,120 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 15:00:26,129 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 15:00:26,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:26,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:26,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:26,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:26,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:26,139 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:26,142 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 15:00:26,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:26,182 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 15:00:26,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,184 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 15:00:26,185 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 15:00:26,187 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 15:00:26,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:26,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:26,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:26,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:26,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:26,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:26,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:26,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:26,237 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 15:00:26,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,239 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 15:00:26,246 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 15:00:26,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:26,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:26,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:26,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:26,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:26,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:26,263 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 15:00:26,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:26,305 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 15:00:26,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,308 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 15:00:26,314 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 15:00:26,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:26,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:26,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:26,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:26,331 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:26,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:26,339 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 15:00:26,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:26,377 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 15:00:26,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,379 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 15:00:26,386 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 15:00:26,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:26,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:26,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:26,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:26,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:26,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:26,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:26,396 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 15:00:26,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:26,429 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 15:00:26,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,432 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 15:00:26,433 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 15:00:26,435 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 15:00:26,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:26,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 15:00:26,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:26,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:26,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:26,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 15:00:26,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 15:00:26,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:00:26,475 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 15:00:26,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,477 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 15:00:26,480 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 15:00:26,483 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 15:00:26,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:00:26,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:00:26,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:00:26,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:00:26,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:00:26,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:00:26,515 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:00:26,534 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-09-29 15:00:26,535 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 15:00:26,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:26,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:26,577 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 15:00:26,578 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 15:00:26,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:00:26,612 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:00:26,612 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:00:26,612 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(T2Thread1of1ForFork1_j, N) = -1*T2Thread1of1ForFork1_j + 1*N Supporting invariants [] [2022-09-29 15:00:26,638 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 15:00:26,639 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:00:26,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:26,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:00:26,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:00:26,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 15:00:26,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:00:26,675 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 15:00:26,676 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 15:00:26,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 46 transitions. cyclomatic complexity: 34 Second 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 15:00:26,709 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 46 transitions. cyclomatic complexity: 34. Second 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 35 states and 80 transitions. Complement of second has 4 states. [2022-09-29 15:00:26,709 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 15:00:26,710 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 15:00:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2022-09-29 15:00:26,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:00:26,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:26,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 15:00:26,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:26,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 15:00:26,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:00:26,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 80 transitions. [2022-09-29 15:00:26,713 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 15:00:26,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2022-09-29 15:00:26,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 15:00:26,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 15:00:26,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 15:00:26,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 15:00:26,714 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 15:00:26,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 15:00:26,714 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 15:00:26,714 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 15:00:26,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 15:00:26,714 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 15:00:26,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 15:00:26,720 INFO L202 PluginConnector]: Adding new model sum2_diff_incr_decr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:00:26 BoogieIcfgContainer [2022-09-29 15:00:26,720 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:00:26,722 INFO L158 Benchmark]: Toolchain (without parser) took 2485.73ms. Allocated memory was 170.9MB in the beginning and 229.6MB in the end (delta: 58.7MB). Free memory was 125.1MB in the beginning and 148.0MB in the end (delta: -22.9MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-09-29 15:00:26,722 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 170.9MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:26,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.86ms. Allocated memory is still 170.9MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 15:00:26,724 INFO L158 Benchmark]: Boogie Preprocessor took 23.92ms. Allocated memory is still 170.9MB. Free memory was 123.5MB in the beginning and 122.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:00:26,728 INFO L158 Benchmark]: RCFGBuilder took 237.47ms. Allocated memory is still 170.9MB. Free memory was 122.5MB in the beginning and 113.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 15:00:26,729 INFO L158 Benchmark]: BuchiAutomizer took 2177.79ms. Allocated memory was 170.9MB in the beginning and 229.6MB in the end (delta: 58.7MB). Free memory was 113.4MB in the beginning and 148.0MB in the end (delta: -34.6MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2022-09-29 15:00:26,737 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 0.16ms. Allocated memory is still 170.9MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.86ms. Allocated memory is still 170.9MB. Free memory was 125.0MB in the beginning and 123.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.92ms. Allocated memory is still 170.9MB. Free memory was 123.5MB in the beginning and 122.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 237.47ms. Allocated memory is still 170.9MB. Free memory was 122.5MB in the beginning and 113.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2177.79ms. Allocated memory was 170.9MB in the beginning and 229.6MB in the end (delta: 58.7MB). Free memory was 113.4MB in the beginning and 148.0MB in the end (delta: -34.6MB). Peak memory consumption was 24.2MB. 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:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 39 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: 110ms 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: 16, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 13, negative conditional: 0, negative unconditional: 13, 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 15:00:26,774 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 15:00:26,984 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 15:00:27,185 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...