/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d9e330d [2020-02-10 19:43:31,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-02-10 19:43:31,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-02-10 19:43:31,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-02-10 19:43:31,743 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 [2020-02-10 19:43:31,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-02-10 19:43:31,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-02-10 19:43:31,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-02-10 19:43:31,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-02-10 19:43:31,759 INFO L138 SettingsManager]: * Use SBE=true [2020-02-10 19:43:31,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-02-10 19:43:31,759 INFO L138 SettingsManager]: * sizeof long=4 [2020-02-10 19:43:31,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-02-10 19:43:31,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-02-10 19:43:31,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-02-10 19:43:31,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-02-10 19:43:31,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-02-10 19:43:31,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-02-10 19:43:31,761 INFO L138 SettingsManager]: * sizeof long double=12 [2020-02-10 19:43:31,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-02-10 19:43:31,761 INFO L138 SettingsManager]: * Use constant arrays=true [2020-02-10 19:43:31,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-02-10 19:43:31,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-02-10 19:43:31,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-02-10 19:43:31,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-02-10 19:43:31,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-02-10 19:43:31,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 19:43:31,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-02-10 19:43:31,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-02-10 19:43:31,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-02-10 19:43:31,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-02-10 19:43:31,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-02-10 19:43:31,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-02-10 19:43:31,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-02-10 19:43:31,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-02-10 19:43:32,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-02-10 19:43:32,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-02-10 19:43:32,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-02-10 19:43:32,056 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-02-10 19:43:32,056 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-02-10 19:43:32,057 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl [2020-02-10 19:43:32,058 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl' [2020-02-10 19:43:32,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-02-10 19:43:32,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-02-10 19:43:32,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-02-10 19:43:32,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-02-10 19:43:32,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-02-10 19:43:32,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-02-10 19:43:32,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-02-10 19:43:32,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-02-10 19:43:32,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-02-10 19:43:32,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/1) ... [2020-02-10 19:43:32,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-02-10 19:43:32,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-02-10 19:43:32,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-02-10 19:43:32,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-02-10 19:43:32,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (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 [2020-02-10 19:43:32,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-02-10 19:43:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-02-10 19:43:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-02-10 19:43:32,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-02-10 19:43:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-02-10 19:43:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-02-10 19:43:32,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-02-10 19:43:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-02-10 19:43:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-02-10 19:43:32,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-02-10 19:43:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-02-10 19:43:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-02-10 19:43:32,220 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-02-10 19:43:32,385 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-02-10 19:43:32,385 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-02-10 19:43:32,389 INFO L202 PluginConnector]: Adding new model example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 07:43:32 BoogieIcfgContainer [2020-02-10 19:43:32,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-02-10 19:43:32,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-02-10 19:43:32,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-02-10 19:43:32,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-02-10 19:43:32,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 07:43:32" (1/2) ... [2020-02-10 19:43:32,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430d3c38 and model type example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 07:43:32, skipping insertion in model container [2020-02-10 19:43:32,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 07:43:32" (2/2) ... [2020-02-10 19:43:32,402 INFO L109 eAbstractionObserver]: Analyzing ICFG example_3.bpl [2020-02-10 19:43:32,412 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-02-10 19:43:32,413 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-02-10 19:43:32,422 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-02-10 19:43:32,423 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-02-10 19:43:32,581 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-02-10 19:43:32,615 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-02-10 19:43:32,615 INFO L376 AbstractCegarLoop]: Hoare is true [2020-02-10 19:43:32,615 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-02-10 19:43:32,616 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-02-10 19:43:32,616 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-02-10 19:43:32,616 INFO L380 AbstractCegarLoop]: Difference is false [2020-02-10 19:43:32,616 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-02-10 19:43:32,616 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-02-10 19:43:32,630 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 24 transitions [2020-02-10 19:43:32,632 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions [2020-02-10 19:43:32,677 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2020-02-10 19:43:32,678 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-02-10 19:43:32,683 INFO L76 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 24 events. 5/24 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs. 0/23 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2020-02-10 19:43:32,685 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions [2020-02-10 19:43:32,696 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2020-02-10 19:43:32,697 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-02-10 19:43:32,698 INFO L76 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 24 events. 5/24 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs. 0/23 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2020-02-10 19:43:32,699 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 84 [2020-02-10 19:43:32,700 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-02-10 19:43:32,784 INFO L206 etLargeBlockEncoding]: Checked pairs total: 27 [2020-02-10 19:43:32,785 INFO L214 etLargeBlockEncoding]: Total number of compositions: 4 [2020-02-10 19:43:32,789 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions [2020-02-10 19:43:32,798 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36 states. [2020-02-10 19:43:32,800 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-02-10 19:43:32,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-02-10 19:43:32,807 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 19:43:32,808 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 19:43:32,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 19:43:32,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 19:43:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash -630022353, now seen corresponding path program 1 times [2020-02-10 19:43:32,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 19:43:32,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121066982] [2020-02-10 19:43:32,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 19:43:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 19:43:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 19:43:33,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121066982] [2020-02-10 19:43:33,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 19:43:33,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-02-10 19:43:33,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675300143] [2020-02-10 19:43:33,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-02-10 19:43:33,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 19:43:33,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-02-10 19:43:33,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-02-10 19:43:33,196 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 5 states. [2020-02-10 19:43:33,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 19:43:33,278 INFO L93 Difference]: Finished difference Result 58 states and 104 transitions. [2020-02-10 19:43:33,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-02-10 19:43:33,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-02-10 19:43:33,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 19:43:33,291 INFO L225 Difference]: With dead ends: 58 [2020-02-10 19:43:33,291 INFO L226 Difference]: Without dead ends: 44 [2020-02-10 19:43:33,293 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-02-10 19:43:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-02-10 19:43:33,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2020-02-10 19:43:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-02-10 19:43:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 64 transitions. [2020-02-10 19:43:33,345 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 64 transitions. Word has length 10 [2020-02-10 19:43:33,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 19:43:33,346 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 64 transitions. [2020-02-10 19:43:33,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-02-10 19:43:33,346 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 64 transitions. [2020-02-10 19:43:33,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-02-10 19:43:33,347 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 19:43:33,347 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 19:43:33,348 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 19:43:33,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 19:43:33,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1034099385, now seen corresponding path program 2 times [2020-02-10 19:43:33,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 19:43:33,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050917202] [2020-02-10 19:43:33,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 19:43:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 19:43:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 19:43:33,461 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050917202] [2020-02-10 19:43:33,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 19:43:33,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-02-10 19:43:33,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840321702] [2020-02-10 19:43:33,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-02-10 19:43:33,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 19:43:33,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-02-10 19:43:33,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-02-10 19:43:33,465 INFO L87 Difference]: Start difference. First operand 35 states and 64 transitions. Second operand 5 states. [2020-02-10 19:43:33,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 19:43:33,531 INFO L93 Difference]: Finished difference Result 56 states and 97 transitions. [2020-02-10 19:43:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-02-10 19:43:33,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-02-10 19:43:33,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 19:43:33,533 INFO L225 Difference]: With dead ends: 56 [2020-02-10 19:43:33,533 INFO L226 Difference]: Without dead ends: 40 [2020-02-10 19:43:33,534 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-02-10 19:43:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-02-10 19:43:33,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2020-02-10 19:43:33,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-02-10 19:43:33,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 56 transitions. [2020-02-10 19:43:33,549 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 56 transitions. Word has length 10 [2020-02-10 19:43:33,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 19:43:33,550 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 56 transitions. [2020-02-10 19:43:33,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-02-10 19:43:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 56 transitions. [2020-02-10 19:43:33,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-02-10 19:43:33,551 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 19:43:33,552 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 19:43:33,552 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 19:43:33,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 19:43:33,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1610616079, now seen corresponding path program 3 times [2020-02-10 19:43:33,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 19:43:33,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970200916] [2020-02-10 19:43:33,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 19:43:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 19:43:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 19:43:33,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970200916] [2020-02-10 19:43:33,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 19:43:33,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-02-10 19:43:33,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138033012] [2020-02-10 19:43:33,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-02-10 19:43:33,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 19:43:33,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-02-10 19:43:33,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-02-10 19:43:33,702 INFO L87 Difference]: Start difference. First operand 31 states and 56 transitions. Second operand 5 states. [2020-02-10 19:43:33,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 19:43:33,747 INFO L93 Difference]: Finished difference Result 48 states and 81 transitions. [2020-02-10 19:43:33,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-02-10 19:43:33,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-02-10 19:43:33,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 19:43:33,748 INFO L225 Difference]: With dead ends: 48 [2020-02-10 19:43:33,750 INFO L226 Difference]: Without dead ends: 35 [2020-02-10 19:43:33,751 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-02-10 19:43:33,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-02-10 19:43:33,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2020-02-10 19:43:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-02-10 19:43:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 44 transitions. [2020-02-10 19:43:33,759 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 44 transitions. Word has length 10 [2020-02-10 19:43:33,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 19:43:33,759 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 44 transitions. [2020-02-10 19:43:33,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-02-10 19:43:33,760 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2020-02-10 19:43:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-02-10 19:43:33,762 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 19:43:33,762 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 19:43:33,764 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 19:43:33,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 19:43:33,764 INFO L82 PathProgramCache]: Analyzing trace with hash 940085819, now seen corresponding path program 4 times [2020-02-10 19:43:33,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 19:43:33,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094226395] [2020-02-10 19:43:33,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 19:43:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 19:43:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 19:43:33,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094226395] [2020-02-10 19:43:33,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 19:43:33,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-02-10 19:43:33,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264975765] [2020-02-10 19:43:33,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-02-10 19:43:33,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 19:43:33,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-02-10 19:43:33,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-02-10 19:43:33,896 INFO L87 Difference]: Start difference. First operand 26 states and 44 transitions. Second operand 5 states. [2020-02-10 19:43:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 19:43:33,925 INFO L93 Difference]: Finished difference Result 38 states and 64 transitions. [2020-02-10 19:43:33,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-02-10 19:43:33,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-02-10 19:43:33,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 19:43:33,926 INFO L225 Difference]: With dead ends: 38 [2020-02-10 19:43:33,926 INFO L226 Difference]: Without dead ends: 23 [2020-02-10 19:43:33,927 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-02-10 19:43:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-02-10 19:43:33,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-02-10 19:43:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-02-10 19:43:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2020-02-10 19:43:33,931 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 10 [2020-02-10 19:43:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 19:43:33,931 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2020-02-10 19:43:33,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-02-10 19:43:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-02-10 19:43:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-02-10 19:43:33,932 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 19:43:33,932 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 19:43:33,933 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 19:43:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 19:43:33,933 INFO L82 PathProgramCache]: Analyzing trace with hash 960546515, now seen corresponding path program 5 times [2020-02-10 19:43:33,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 19:43:33,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780372147] [2020-02-10 19:43:33,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 19:43:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 19:43:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 19:43:34,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780372147] [2020-02-10 19:43:34,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 19:43:34,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-02-10 19:43:34,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721398665] [2020-02-10 19:43:34,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-02-10 19:43:34,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 19:43:34,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-02-10 19:43:34,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-02-10 19:43:34,019 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 5 states. [2020-02-10 19:43:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 19:43:34,060 INFO L93 Difference]: Finished difference Result 31 states and 50 transitions. [2020-02-10 19:43:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-02-10 19:43:34,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-02-10 19:43:34,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 19:43:34,062 INFO L225 Difference]: With dead ends: 31 [2020-02-10 19:43:34,062 INFO L226 Difference]: Without dead ends: 19 [2020-02-10 19:43:34,063 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-02-10 19:43:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-02-10 19:43:34,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-02-10 19:43:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-02-10 19:43:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2020-02-10 19:43:34,068 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 28 transitions. Word has length 10 [2020-02-10 19:43:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 19:43:34,068 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-02-10 19:43:34,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-02-10 19:43:34,068 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-02-10 19:43:34,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-02-10 19:43:34,069 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 19:43:34,069 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 19:43:34,070 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-02-10 19:43:34,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 19:43:34,070 INFO L82 PathProgramCache]: Analyzing trace with hash 988252145, now seen corresponding path program 6 times [2020-02-10 19:43:34,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 19:43:34,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867076312] [2020-02-10 19:43:34,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 19:43:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 19:43:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 19:43:34,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867076312] [2020-02-10 19:43:34,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 19:43:34,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-02-10 19:43:34,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252403241] [2020-02-10 19:43:34,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-02-10 19:43:34,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 19:43:34,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-02-10 19:43:34,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-02-10 19:43:34,187 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. Second operand 5 states. [2020-02-10 19:43:34,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 19:43:34,206 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2020-02-10 19:43:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-02-10 19:43:34,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-02-10 19:43:34,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 19:43:34,207 INFO L225 Difference]: With dead ends: 18 [2020-02-10 19:43:34,207 INFO L226 Difference]: Without dead ends: 0 [2020-02-10 19:43:34,208 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-02-10 19:43:34,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-02-10 19:43:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-02-10 19:43:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-02-10 19:43:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-02-10 19:43:34,209 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-02-10 19:43:34,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 19:43:34,210 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-02-10 19:43:34,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-02-10 19:43:34,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-02-10 19:43:34,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-02-10 19:43:34,214 INFO L202 PluginConnector]: Adding new model example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 07:43:34 BasicIcfg [2020-02-10 19:43:34,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-02-10 19:43:34,217 INFO L168 Benchmark]: Toolchain (without parser) took 2126.03 ms. Allocated memory was 145.2 MB in the beginning and 174.6 MB in the end (delta: 29.4 MB). Free memory was 120.3 MB in the beginning and 65.2 MB in the end (delta: 55.1 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-02-10 19:43:34,218 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-02-10 19:43:34,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.45 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 118.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-02-10 19:43:34,220 INFO L168 Benchmark]: Boogie Preprocessor took 18.51 ms. Allocated memory is still 145.2 MB. Free memory was 118.4 MB in the beginning and 117.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2020-02-10 19:43:34,221 INFO L168 Benchmark]: RCFGBuilder took 243.70 ms. Allocated memory is still 145.2 MB. Free memory was 117.3 MB in the beginning and 107.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-02-10 19:43:34,222 INFO L168 Benchmark]: TraceAbstraction took 1823.37 ms. Allocated memory was 145.2 MB in the beginning and 174.6 MB in the end (delta: 29.4 MB). Free memory was 106.6 MB in the beginning and 65.2 MB in the end (delta: 41.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. [2020-02-10 19:43:34,226 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 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 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 34.45 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 118.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.51 ms. Allocated memory is still 145.2 MB. Free memory was 118.4 MB in the beginning and 117.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 243.70 ms. Allocated memory is still 145.2 MB. Free memory was 117.3 MB in the beginning and 107.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1823.37 ms. Allocated memory was 145.2 MB in the beginning and 174.6 MB in the end (delta: 29.4 MB). Free memory was 106.6 MB in the beginning and 65.2 MB in the end (delta: 41.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.1s, 28 ProgramPointsBefore, 24 ProgramPointsAfterwards, 24 TransitionsBefore, 20 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 24 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 27 CheckedPairsTotal, 4 TotalNumberOfCompositions - PositiveResult [Line: 19]: 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 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. Result: SAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 154 SDtfs, 234 SDslu, 194 SDs, 0 SdLazy, 45 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 6 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 4734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...