/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/sum-print.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:00:21,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:00:21,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:00:21,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:00:21,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:00:21,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:00:21,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:00:21,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:00:21,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:00:21,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:00:21,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:00:21,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:00:21,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:00:21,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:00:21,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:00:21,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:00:21,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:00:21,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:00:21,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:00:21,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:00:21,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:00:21,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:00:21,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:00:21,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:00:21,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 15:00:21,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:00:21,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:00:21,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:00:21,260 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 15:00:21,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:00:21,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:00:21,281 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:00:21,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:00:21,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:00:21,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:00:21,282 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:00:21,282 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:00:21,282 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:00:21,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:00:21,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:00:21,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:00:21,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:00:21,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:00:21,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:00:21,285 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:00:21,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:00:21,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:00:21,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:00:21,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:00:21,483 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:00:21,493 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:00:21,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl [2022-09-29 15:00:21,495 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/sum-print.bpl' [2022-09-29 15:00:21,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:00:21,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:00:21,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:21,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:00:21,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:00:21,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,566 INFO L137 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-09-29 15:00:21,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:00:21,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:00:21,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:00:21,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:00:21,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:00:21,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:00:21,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:00:21,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:00:21,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/1) ... [2022-09-29 15:00:21,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:21,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:21,610 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 15:00:21,656 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 15:00:21,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:00:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:00:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:00:21,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2022-09-29 15:00:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2022-09-29 15:00:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2022-09-29 15:00:21,679 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2022-09-29 15:00:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2022-09-29 15:00:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2022-09-29 15:00:21,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T3 given in one single declaration [2022-09-29 15:00:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure T3 [2022-09-29 15:00:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure T3 [2022-09-29 15:00:21,681 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 15:00:21,719 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:00:21,720 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:00:21,809 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:00:21,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:00:21,824 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-09-29 15:00:21,826 INFO L202 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:21 BoogieIcfgContainer [2022-09-29 15:00:21,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:00:21,827 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:00:21,827 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:00:21,836 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:00:21,837 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:21,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:00:21" (1/2) ... [2022-09-29 15:00:21,838 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2da56d96 and model type sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:00:21, skipping insertion in model container [2022-09-29 15:00:21,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:00:21,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:00:21" (2/2) ... [2022-09-29 15:00:21,840 INFO L322 chiAutomizerObserver]: Analyzing ICFG sum-print.bpl [2022-09-29 15:00:21,906 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-29 15:00:21,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 92 flow [2022-09-29 15:00:21,945 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:21,945 INFO L123 PetriNetUnfolderBase]: 3/28 cut-off events. [2022-09-29 15:00:21,946 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:00:21,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2022-09-29 15:00:21,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 92 flow [2022-09-29 15:00:21,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 74 flow [2022-09-29 15:00:21,974 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:00:21,983 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 74 flow [2022-09-29 15:00:21,985 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 74 flow [2022-09-29 15:00:21,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 74 flow [2022-09-29 15:00:21,991 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:00:21,992 INFO L123 PetriNetUnfolderBase]: 3/28 cut-off events. [2022-09-29 15:00:21,992 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:00:21,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2022-09-29 15:00:21,993 INFO L116 LiptonReduction]: Number of co-enabled transitions 250 [2022-09-29 15:00:22,351 INFO L131 LiptonReduction]: Checked pairs total: 204 [2022-09-29 15:00:22,351 INFO L133 LiptonReduction]: Total number of compositions: 11 [2022-09-29 15:00:22,368 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:00:22,368 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:00:22,368 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:00:22,368 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:00:22,368 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:00:22,368 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:00:22,369 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:00:22,369 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 15:00:22,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 15:00:22,402 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 25 [2022-09-29 15:00:22,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:22,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:22,405 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-09-29 15:00:22,406 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:22,406 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:00:22,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 42 states, but on-demand construction may add more states [2022-09-29 15:00:22,415 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 25 [2022-09-29 15:00:22,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 15:00:22,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 15:00:22,416 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-09-29 15:00:22,416 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 15:00:22,420 INFO L733 eck$LassoCheckResult]: Stem: 41#[ULTIMATE.startENTRY]don't care [120] ULTIMATE.startENTRY-->L65: Formula: (and (= v_x_20 0) (= v_y_14 0)) InVars {} OutVars{y=v_y_14, x=v_x_20} AuxVars[] AssignedVars[y, x] 44#[L65]don't care [104] L65-->L24: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 46#[L24, L65-1]don't care [2022-09-29 15:00:22,420 INFO L735 eck$LassoCheckResult]: Loop: 46#[L24, L65-1]don't care [116] L24-->L24: Formula: (and (= v_y_8 (+ (- 1) v_y_9)) (= v_x_14 (+ v_x_15 1))) InVars {y=v_y_9, x=v_x_15} OutVars{y=v_y_8, x=v_x_14} AuxVars[] AssignedVars[y, x] 46#[L24, L65-1]don't care [2022-09-29 15:00:22,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:22,424 INFO L85 PathProgramCache]: Analyzing trace with hash 4785, now seen corresponding path program 1 times [2022-09-29 15:00:22,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:22,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370378227] [2022-09-29 15:00:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:22,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,490 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:22,518 INFO L85 PathProgramCache]: Analyzing trace with hash 147, now seen corresponding path program 1 times [2022-09-29 15:00:22,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:22,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492726546] [2022-09-29 15:00:22,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:22,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,525 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:22,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:00:22,534 INFO L85 PathProgramCache]: Analyzing trace with hash 148451, now seen corresponding path program 1 times [2022-09-29 15:00:22,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:00:22,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759943694] [2022-09-29 15:00:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:00:22,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:00:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,540 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:00:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:00:22,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:00:22,635 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:22,636 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:22,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:22,636 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:22,636 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 15:00:22,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:22,637 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:22,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:22,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Loop [2022-09-29 15:00:22,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:22,638 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:22,665 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 15:00:22,673 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 15:00:22,697 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:22,698 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 15:00:22,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:22,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:22,701 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 15:00:22,719 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 15:00:22,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:00:22,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:22,749 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 15:00:22,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:22,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:22,751 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 15:00:22,751 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 15:00:22,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:00:22,797 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:22,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:00:22,820 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=-5}, {y=-2}, {y=6}] Lambdas: [1, 4, 1] Nus: [0, 1] [2022-09-29 15:00:22,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-09-29 15:00:22,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:22,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:22,839 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 15:00:22,839 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 15:00:22,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:00:22,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:22,871 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 15:00:22,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:22,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:22,873 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 15:00:22,874 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 15:00:22,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:00:22,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:22,912 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:00:22,912 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=-1}, {x=-2}, {x=4}] Lambdas: [1, 3, 1] Nus: [0, 1] [2022-09-29 15:00:22,956 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 15:00:22,971 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:00:22,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:00:22,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:00:22,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:00:22,972 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 15:00:22,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:22,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:00:22,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:00:22,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-print.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:00:22,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:00:22,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:00:22,974 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 15:00:22,978 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 15:00:22,984 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 15:00:23,023 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:00:23,024 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 15:00:23,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:23,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:23,027 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 15:00:23,027 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 15:00:23,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:00:23,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:23,050 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:00:23,050 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {T1Thread1of1ForFork0_thidvar0=0} Honda state: {T1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-09-29 15:00:23,068 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 15:00:23,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:23,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:23,070 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 15:00:23,072 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 15:00:23,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:00:23,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:23,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-09-29 15:00:23,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:23,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:23,149 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 15:00:23,150 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 15:00:23,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:00:23,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:23,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:00:23,170 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x=0} Honda state: {x=0} Generalized eigenvectors: [{x=-1}, {x=-2}, {x=4}] Lambdas: [1, 3, 1] Nus: [0, 1] [2022-09-29 15:00:23,187 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 15:00:23,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:23,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:23,188 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 15:00:23,189 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 15:00:23,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 15:00:23,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:23,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-09-29 15:00:23,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:00:23,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:00:23,241 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 15:00:23,242 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 15:00:23,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 15:00:23,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 15:00:23,266 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-09-29 15:00:23,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0} Honda state: {y=0} Generalized eigenvectors: [{y=-5}, {y=-2}, {y=6}] Lambdas: [1, 4, 1] Nus: [0, 1] [2022-09-29 15:00:23,282 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 15:00:23,288 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] [2022-09-29 15:00:23,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] [2022-09-29 15:00:23,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] [2022-09-29 15:00:23,300 INFO L202 PluginConnector]: Adding new model sum-print.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:00:23 BoogieIcfgContainer [2022-09-29 15:00:23,300 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:00:23,301 INFO L158 Benchmark]: Toolchain (without parser) took 1772.27ms. Allocated memory is still 222.3MB. Free memory was 180.2MB in the beginning and 177.9MB in the end (delta: 2.3MB). Peak memory consumption was 14.8MB. Max. memory is 8.0GB. [2022-09-29 15:00:23,301 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 222.3MB. Free memory is still 181.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:00:23,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.05ms. Allocated memory is still 222.3MB. Free memory was 180.2MB in the beginning and 178.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 15:00:23,301 INFO L158 Benchmark]: Boogie Preprocessor took 16.72ms. Allocated memory is still 222.3MB. Free memory was 178.3MB in the beginning and 177.3MB in the end (delta: 901.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:00:23,302 INFO L158 Benchmark]: RCFGBuilder took 240.47ms. Allocated memory is still 222.3MB. Free memory was 177.2MB in the beginning and 167.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-29 15:00:23,302 INFO L158 Benchmark]: BuchiAutomizer took 1472.80ms. Allocated memory is still 222.3MB. Free memory was 167.3MB in the beginning and 177.9MB in the end (delta: -10.6MB). Peak memory consumption was 2.3MB. Max. memory is 8.0GB. [2022-09-29 15:00:23,304 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 222.3MB. Free memory is still 181.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.05ms. Allocated memory is still 222.3MB. Free memory was 180.2MB in the beginning and 178.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.72ms. Allocated memory is still 222.3MB. Free memory was 178.3MB in the beginning and 177.3MB in the end (delta: 901.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 240.47ms. Allocated memory is still 222.3MB. Free memory was 177.2MB in the beginning and 167.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1472.80ms. Allocated memory is still 222.3MB. Free memory was 167.3MB in the beginning and 177.9MB in the end (delta: -10.6MB). Peak memory consumption was 2.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf100 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 24]: Nontermination argument in form of an infinite program execution. [2022-09-29 15:00:23,318 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] [2022-09-29 15:00:23,318 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] [2022-09-29 15:00:23,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] [2022-09-29 15:00:23,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier7,QUANTIFIED] [2022-09-29 15:00:23,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier8,QUANTIFIED] [2022-09-29 15:00:23,319 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier9,QUANTIFIED] Nontermination argument in form of an infinite execution State at position 0 is {x=0, y=0, freshIdentifier7=0} State at position 1 is {x=0, y=0, freshIdentifier8=1} For i>1, the state at position i is {x=0 + sum_{k=0}^i -1 + -2*3^k + 4 + 4*k*3^(k-1), y=0 + sum_{k=0}^i -5 + -2*4^k + 6 + 6*k*4^(k-1), freshIdentifier9=1 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 3, 1, 1, 4, 1] Mus: [0, 1, 0, 0, 1] - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] 0 x := 0; [L63] 0 y := 0; [L65] FORK 0 fork 1 T1(); Loop: [L25] x := x + 1; [L26] y := y - 1; End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 35 PlacesBefore, 24 PlacesAfterwards, 28 TransitionsBefore, 17 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195, positive: 193, positive conditional: 0, positive unconditional: 193, 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: 146, positive: 144, positive conditional: 0, positive unconditional: 144, 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: 146, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 195, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 146, unknown conditional: 0, unknown unconditional: 146] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, 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 15:00:23,342 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...