/usr/bin/java -Xmx8000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-abd8500 [2020-01-16 20:50:29,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-01-16 20:50:29,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-01-16 20:50:29,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-01-16 20:50:29,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-01-16 20:50:29,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-01-16 20:50:29,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-01-16 20:50:29,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-01-16 20:50:29,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-01-16 20:50:29,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-01-16 20:50:29,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-01-16 20:50:29,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-01-16 20:50:29,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-01-16 20:50:29,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-01-16 20:50:29,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-01-16 20:50:29,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-01-16 20:50:29,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-01-16 20:50:29,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-01-16 20:50:29,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-01-16 20:50:29,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-01-16 20:50:29,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-01-16 20:50:29,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-01-16 20:50:29,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-01-16 20:50:29,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-01-16 20:50:29,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-01-16 20:50:29,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-01-16 20:50:29,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-01-16 20:50:29,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-01-16 20:50:29,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2020-01-16 20:50:29,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-01-16 20:50:29,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-01-16 20:50:29,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-01-16 20:50:29,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-01-16 20:50:29,995 INFO L138 SettingsManager]: * Use SBE=true [2020-01-16 20:50:29,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-01-16 20:50:29,995 INFO L138 SettingsManager]: * sizeof long=4 [2020-01-16 20:50:29,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-01-16 20:50:29,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-01-16 20:50:29,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-01-16 20:50:29,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-01-16 20:50:29,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-01-16 20:50:29,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-01-16 20:50:29,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-01-16 20:50:29,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-01-16 20:50:29,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-01-16 20:50:29,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-01-16 20:50:29,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-01-16 20:50:29,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-01-16 20:50:29,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-01-16 20:50:29,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-01-16 20:50:29,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-01-16 20:50:29,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-01-16 20:50:30,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-01-16 20:50:30,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-01-16 20:50:30,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-01-16 20:50:30,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-01-16 20:50:30,000 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-01-16 20:50:30,001 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-01-16 20:50:30,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-01-16 20:50:30,001 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-01-16 20:50:30,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-01-16 20:50:30,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-01-16 20:50:30,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-01-16 20:50:30,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-01-16 20:50:30,300 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-01-16 20:50:30,300 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-01-16 20:50:30,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_2.bpl [2020-01-16 20:50:30,301 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_2.bpl' [2020-01-16 20:50:30,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-01-16 20:50:30,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-01-16 20:50:30,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-01-16 20:50:30,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-01-16 20:50:30,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-01-16 20:50:30,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-01-16 20:50:30,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-01-16 20:50:30,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-01-16 20:50:30,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-01-16 20:50:30,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/1) ... [2020-01-16 20:50:30,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-01-16 20:50:30,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-01-16 20:50:30,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-01-16 20:50:30,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-01-16 20:50:30,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (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 [2020-01-16 20:50:30,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-01-16 20:50:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-01-16 20:50:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-01-16 20:50:30,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-01-16 20:50:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-01-16 20:50:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-01-16 20:50:30,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-01-16 20:50:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-01-16 20:50:30,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-01-16 20:50:30,468 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-01-16 20:50:30,621 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-01-16 20:50:30,622 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2020-01-16 20:50:30,624 INFO L202 PluginConnector]: Adding new model example_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.01 08:50:30 BoogieIcfgContainer [2020-01-16 20:50:30,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-01-16 20:50:30,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-01-16 20:50:30,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-01-16 20:50:30,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-01-16 20:50:30,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:30" (1/2) ... [2020-01-16 20:50:30,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1061d1 and model type example_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.01 08:50:30, skipping insertion in model container [2020-01-16 20:50:30,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.01 08:50:30" (2/2) ... [2020-01-16 20:50:30,634 INFO L109 eAbstractionObserver]: Analyzing ICFG example_2.bpl [2020-01-16 20:50:30,645 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-01-16 20:50:30,645 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-01-16 20:50:30,653 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-01-16 20:50:30,655 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-01-16 20:50:30,736 INFO L250 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-01-16 20:50:30,775 INFO L374 AbstractCegarLoop]: Interprodecural is true [2020-01-16 20:50:30,775 INFO L375 AbstractCegarLoop]: Hoare is true [2020-01-16 20:50:30,776 INFO L376 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-01-16 20:50:30,776 INFO L377 AbstractCegarLoop]: Backedges is MCR [2020-01-16 20:50:30,776 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-01-16 20:50:30,776 INFO L379 AbstractCegarLoop]: Difference is false [2020-01-16 20:50:30,776 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-01-16 20:50:30,776 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-01-16 20:50:30,787 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 15 transitions [2020-01-16 20:50:30,798 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 23 states. [2020-01-16 20:50:30,801 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-01-16 20:50:30,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-01-16 20:50:30,811 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:50:30,813 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:50:30,814 INFO L426 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-01-16 20:50:30,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:50:30,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1311335226, now seen corresponding path program 1 times [2020-01-16 20:50:30,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:50:30,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781914818] [2020-01-16 20:50:30,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:50:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:50:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:50:31,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781914818] [2020-01-16 20:50:31,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:50:31,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:50:31,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [748325785] [2020-01-16 20:50:31,121 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:50:31,132 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:50:31,149 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 18 states and 25 transitions. [2020-01-16 20:50:31,149 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:50:31,235 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2020-01-16 20:50:31,236 INFO L458 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-01-16 20:50:31,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:50:31,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-01-16 20:50:31,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-01-16 20:50:31,261 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2020-01-16 20:50:31,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:50:31,352 INFO L93 Difference]: Finished difference Result 22 states and 32 transitions. [2020-01-16 20:50:31,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-01-16 20:50:31,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-01-16 20:50:31,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:50:31,363 INFO L225 Difference]: With dead ends: 22 [2020-01-16 20:50:31,363 INFO L226 Difference]: Without dead ends: 0 [2020-01-16 20:50:31,368 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-01-16 20:50:31,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-01-16 20:50:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-01-16 20:50:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-01-16 20:50:31,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-01-16 20:50:31,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-01-16 20:50:31,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:50:31,401 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-01-16 20:50:31,402 INFO L479 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-01-16 20:50:31,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-01-16 20:50:31,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-01-16 20:50:31,412 INFO L202 PluginConnector]: Adding new model example_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.01 08:50:31 BasicIcfg [2020-01-16 20:50:31,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-01-16 20:50:31,417 INFO L168 Benchmark]: Toolchain (without parser) took 1081.13 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 78.4 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2020-01-16 20:50:31,419 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-01-16 20:50:31,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 119.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-01-16 20:50:31,423 INFO L168 Benchmark]: Boogie Preprocessor took 18.94 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 118.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2020-01-16 20:50:31,425 INFO L168 Benchmark]: RCFGBuilder took 232.91 ms. Allocated memory is still 138.9 MB. Free memory was 117.9 MB in the beginning and 108.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-01-16 20:50:31,427 INFO L168 Benchmark]: TraceAbstraction took 787.58 ms. Allocated memory is still 138.9 MB. Free memory was 108.2 MB in the beginning and 78.4 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-01-16 20:50:31,438 INFO L335 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 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.37 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 119.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.94 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 118.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 232.91 ms. Allocated memory is still 138.9 MB. Free memory was 117.9 MB in the beginning and 108.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 787.58 ms. Allocated memory is still 138.9 MB. Free memory was 108.2 MB in the beginning and 78.4 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 3 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 19 SDslu, 18 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 464 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...