/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-50b6972 [2020-10-06 18:21:36,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 18:21:36,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 18:21:36,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-06 18:21:36,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 18:21:36,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 18:21:36,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 18:21:36,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 18:21:36,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 18:21:36,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 18:21:36,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 18:21:36,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 18:21:36,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 18:21:36,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 18:21:36,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 18:21:36,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 18:21:36,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 18:21:36,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-06 18:21:36,509 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 18:21:36,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 18:21:36,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 18:21:36,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 18:21:36,515 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 18:21:36,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 18:21:36,516 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 18:21:36,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 18:21:36,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 18:21:36,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 18:21:36,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 18:21:36,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 18:21:36,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 18:21:36,518 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 18:21:36,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 18:21:36,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 18:21:36,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 18:21:36,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 18:21:36,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 18:21:36,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 18:21:36,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 18:21:36,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 18:21:36,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 18:21:36,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-06 18:21:36,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 18:21:36,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 18:21:36,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 18:21:36,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 18:21:36,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-06 18:21:36,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-06 18:21:36,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 18:21:36,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 18:21:36,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 18:21:36,877 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-10-06 18:21:36,877 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-10-06 18:21:36,878 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=06.bpl [2020-10-06 18:21:36,879 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=06.bpl' [2020-10-06 18:21:36,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 18:21:36,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-06 18:21:36,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 18:21:36,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 18:21:36,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 18:21:36,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 18:21:36,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 18:21:36,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 18:21:36,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 18:21:36,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:36,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... [2020-10-06 18:21:37,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 18:21:37,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 18:21:37,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 18:21:37,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 18:21:37,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 18:21:37,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-10-06 18:21:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-06 18:21:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-06 18:21:37,071 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-10-06 18:21:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-06 18:21:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-06 18:21:37,071 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-10-06 18:21:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-06 18:21:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-06 18:21:37,072 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-10-06 18:21:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 18:21:37,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 18:21:37,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-10-06 18:21:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-10-06 18:21:37,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-10-06 18:21:37,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-10-06 18:21:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-10-06 18:21:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-10-06 18:21:37,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-10-06 18:21:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-10-06 18:21:37,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-10-06 18:21:37,075 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 18:21:37,279 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 18:21:37,280 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-06 18:21:37,282 INFO L202 PluginConnector]: Adding new model example2_N=06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 06:21:37 BoogieIcfgContainer [2020-10-06 18:21:37,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 18:21:37,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 18:21:37,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 18:21:37,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 18:21:37,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 06:21:36" (1/2) ... [2020-10-06 18:21:37,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44676083 and model type example2_N=06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 06:21:37, skipping insertion in model container [2020-10-06 18:21:37,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 06:21:37" (2/2) ... [2020-10-06 18:21:37,291 INFO L111 eAbstractionObserver]: Analyzing ICFG example2_N=06.bpl [2020-10-06 18:21:37,305 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 18:21:37,306 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-06 18:21:37,315 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 18:21:37,317 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 18:21:37,435 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-06 18:21:37,459 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-06 18:21:37,459 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-06 18:21:37,459 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-06 18:21:37,459 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-06 18:21:37,460 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 18:21:37,460 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-06 18:21:37,460 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 18:21:37,460 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 18:21:37,474 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-06 18:21:37,477 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 40 transitions, 128 flow [2020-10-06 18:21:37,480 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 40 transitions, 128 flow [2020-10-06 18:21:37,482 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 53 places, 40 transitions, 128 flow [2020-10-06 18:21:37,518 INFO L129 PetriNetUnfolder]: 6/34 cut-off events. [2020-10-06 18:21:37,519 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-06 18:21:37,524 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 34 events. 6/34 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2020-10-06 18:21:37,527 INFO L117 LiptonReduction]: Number of co-enabled transitions 450 [2020-10-06 18:21:37,774 INFO L132 LiptonReduction]: Checked pairs total: 665 [2020-10-06 18:21:37,774 INFO L134 LiptonReduction]: Total number of compositions: 2 [2020-10-06 18:21:37,781 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 38 transitions, 124 flow [2020-10-06 18:21:37,917 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1096 states. [2020-10-06 18:21:37,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states. [2020-10-06 18:21:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-06 18:21:37,957 INFO L413 BasicCegarLoop]: Found error trace [2020-10-06 18:21:37,958 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 18:21:37,958 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-10-06 18:21:37,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 18:21:37,966 INFO L82 PathProgramCache]: Analyzing trace with hash 304236524, now seen corresponding path program 1 times [2020-10-06 18:21:37,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 18:21:37,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004751898] [2020-10-06 18:21:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 18:21:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 18:21:38,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 18:21:38,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004751898] [2020-10-06 18:21:38,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 18:21:38,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 18:21:38,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499875559] [2020-10-06 18:21:38,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 18:21:38,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 18:21:38,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 18:21:38,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 18:21:38,187 INFO L87 Difference]: Start difference. First operand 1096 states. Second operand 3 states. [2020-10-06 18:21:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 18:21:38,302 INFO L93 Difference]: Finished difference Result 1095 states and 6260 transitions. [2020-10-06 18:21:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 18:21:38,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-06 18:21:38,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 18:21:38,312 INFO L225 Difference]: With dead ends: 1095 [2020-10-06 18:21:38,312 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 18:21:38,314 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 18:21:38,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 18:21:38,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 18:21:38,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 18:21:38,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 18:21:38,338 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-06 18:21:38,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 18:21:38,339 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 18:21:38,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 18:21:38,339 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 18:21:38,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 18:21:38,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 18:21:38,342 INFO L202 PluginConnector]: Adding new model example2_N=06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 06:21:38 BasicIcfg [2020-10-06 18:21:38,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 18:21:38,345 INFO L168 Benchmark]: Toolchain (without parser) took 1411.87 ms. Allocated memory is still 250.6 MB. Free memory was 227.0 MB in the beginning and 136.3 MB in the end (delta: 90.6 MB). Peak memory consumption was 90.6 MB. Max. memory is 14.2 GB. [2020-10-06 18:21:38,346 INFO L168 Benchmark]: Boogie PL CUP Parser took 1.08 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-06 18:21:38,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.43 ms. Allocated memory is still 250.6 MB. Free memory was 227.0 MB in the beginning and 224.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-06 18:21:38,348 INFO L168 Benchmark]: Boogie Preprocessor took 26.17 ms. Allocated memory is still 250.6 MB. Free memory was 224.5 MB in the beginning and 221.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-06 18:21:38,349 INFO L168 Benchmark]: RCFGBuilder took 281.03 ms. Allocated memory is still 250.6 MB. Free memory was 221.9 MB in the beginning and 209.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.2 GB. [2020-10-06 18:21:38,350 INFO L168 Benchmark]: TraceAbstraction took 1059.52 ms. Allocated memory is still 250.6 MB. Free memory was 209.3 MB in the beginning and 136.3 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 14.2 GB. [2020-10-06 18:21:38,353 INFO L336 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 1.08 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 40.43 ms. Allocated memory is still 250.6 MB. Free memory was 227.0 MB in the beginning and 224.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.17 ms. Allocated memory is still 250.6 MB. Free memory was 224.5 MB in the beginning and 221.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 281.03 ms. Allocated memory is still 250.6 MB. Free memory was 221.9 MB in the beginning and 209.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.2 GB. * TraceAbstraction took 1059.52 ms. Allocated memory is still 250.6 MB. Free memory was 209.3 MB in the beginning and 136.3 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 131 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 10 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 134 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.2s, 53 PlacesBefore, 51 PlacesAfterwards, 40 TransitionsBefore, 38 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 665 MoverChecksTotal - PositiveResult [Line: 22]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 19 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 12 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1096occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...