/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-abd8500 [2020-01-16 19:54:44,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-01-16 19:54:44,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-01-16 19:54:44,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-01-16 19:54:44,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-01-16 19:54:44,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-01-16 19:54:44,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-01-16 19:54:44,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-01-16 19:54:44,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-01-16 19:54:44,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-01-16 19:54:44,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-01-16 19:54:44,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-01-16 19:54:44,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-01-16 19:54:44,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-01-16 19:54:44,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-01-16 19:54:44,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-01-16 19:54:44,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-01-16 19:54:44,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-01-16 19:54:44,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-01-16 19:54:44,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-01-16 19:54:44,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-01-16 19:54:44,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-01-16 19:54:44,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-01-16 19:54:44,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-01-16 19:54:44,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-01-16 19:54:44,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-01-16 19:54:44,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-01-16 19:54:44,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-01-16 19:54:44,904 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-SemanticLbe-MCR.epf [2020-01-16 19:54:44,919 INFO L113 SettingsManager]: Loading preferences was successful [2020-01-16 19:54:44,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-01-16 19:54:44,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-01-16 19:54:44,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-01-16 19:54:44,921 INFO L138 SettingsManager]: * Use SBE=true [2020-01-16 19:54:44,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-01-16 19:54:44,921 INFO L138 SettingsManager]: * sizeof long=4 [2020-01-16 19:54:44,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-01-16 19:54:44,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-01-16 19:54:44,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-01-16 19:54:44,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-01-16 19:54:44,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-01-16 19:54:44,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-01-16 19:54:44,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-01-16 19:54:44,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-01-16 19:54:44,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-01-16 19:54:44,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-01-16 19:54:44,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-01-16 19:54:44,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-01-16 19:54:44,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-01-16 19:54:44,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-01-16 19:54:44,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-01-16 19:54:44,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-01-16 19:54:44,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-01-16 19:54:44,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-01-16 19:54:44,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-01-16 19:54:44,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-01-16 19:54:44,925 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-01-16 19:54:44,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-01-16 19:54:44,926 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-01-16 19:54:44,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-01-16 19:54:45,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-01-16 19:54:45,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-01-16 19:54:45,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-01-16 19:54:45,219 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-01-16 19:54:45,220 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-01-16 19:54:45,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2020-01-16 19:54:45,222 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2020-01-16 19:54:45,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-01-16 19:54:45,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-01-16 19:54:45,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-01-16 19:54:45,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-01-16 19:54:45,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-01-16 19:54:45,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-01-16 19:54:45,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-01-16 19:54:45,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-01-16 19:54:45,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-01-16 19:54:45,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/1) ... [2020-01-16 19:54:45,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-01-16 19:54:45,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-01-16 19:54:45,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-01-16 19:54:45,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-01-16 19:54:45,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (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 19:54:45,399 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-01-16 19:54:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-01-16 19:54:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-01-16 19:54:45,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-01-16 19:54:45,401 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-01-16 19:54:45,402 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-01-16 19:54:45,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-01-16 19:54:45,402 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-01-16 19:54:45,402 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-01-16 19:54:45,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2020-01-16 19:54:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2020-01-16 19:54:45,403 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2020-01-16 19:54:45,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-01-16 19:54:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-01-16 19:54:45,403 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-01-16 19:54:45,404 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-01-16 19:54:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-01-16 19:54:45,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-01-16 19:54:45,404 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2020-01-16 19:54:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2020-01-16 19:54:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2020-01-16 19:54:45,405 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2020-01-16 19:54:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2020-01-16 19:54:45,412 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2020-01-16 19:54:45,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2020-01-16 19:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2020-01-16 19:54:45,415 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2020-01-16 19:54:45,416 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 19:54:45,701 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-01-16 19:54:45,702 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2020-01-16 19:54:45,703 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.01 07:54:45 BoogieIcfgContainer [2020-01-16 19:54:45,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-01-16 19:54:45,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-01-16 19:54:45,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-01-16 19:54:45,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-01-16 19:54:45,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 07:54:45" (1/2) ... [2020-01-16 19:54:45,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94bd19b and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.01 07:54:45, skipping insertion in model container [2020-01-16 19:54:45,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.01 07:54:45" (2/2) ... [2020-01-16 19:54:45,711 INFO L109 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2020-01-16 19:54:45,721 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-01-16 19:54:45,721 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-01-16 19:54:45,730 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-01-16 19:54:45,731 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-01-16 19:54:45,898 INFO L250 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-01-16 19:54:45,919 INFO L374 AbstractCegarLoop]: Interprodecural is true [2020-01-16 19:54:45,919 INFO L375 AbstractCegarLoop]: Hoare is true [2020-01-16 19:54:45,919 INFO L376 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-01-16 19:54:45,920 INFO L377 AbstractCegarLoop]: Backedges is MCR [2020-01-16 19:54:45,920 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-01-16 19:54:45,920 INFO L379 AbstractCegarLoop]: Difference is false [2020-01-16 19:54:45,920 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-01-16 19:54:45,920 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-01-16 19:54:45,940 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 99 transitions [2020-01-16 19:54:45,941 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 68 places, 99 transitions [2020-01-16 19:54:46,330 INFO L129 PetriNetUnfolder]: 769/1051 cut-off events. [2020-01-16 19:54:46,331 INFO L130 PetriNetUnfolder]: For 1024/1024 co-relation queries the response was YES. [2020-01-16 19:54:46,360 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2100 conditions, 1051 events. 769/1051 cut-off events. For 1024/1024 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3864 event pairs. 0/1050 useless extension candidates. Maximal degree in co-relation 933. Up to 280 conditions per place. [2020-01-16 19:54:46,387 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 68 places, 99 transitions [2020-01-16 19:54:46,611 INFO L129 PetriNetUnfolder]: 769/1051 cut-off events. [2020-01-16 19:54:46,611 INFO L130 PetriNetUnfolder]: For 1024/1024 co-relation queries the response was YES. [2020-01-16 19:54:46,621 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2100 conditions, 1051 events. 769/1051 cut-off events. For 1024/1024 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3864 event pairs. 0/1050 useless extension candidates. Maximal degree in co-relation 933. Up to 280 conditions per place. [2020-01-16 19:54:46,644 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1904 [2020-01-16 19:54:46,645 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-01-16 19:54:46,866 INFO L206 etLargeBlockEncoding]: Checked pairs total: 532 [2020-01-16 19:54:46,867 INFO L214 etLargeBlockEncoding]: Total number of compositions: 9 [2020-01-16 19:54:46,871 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 90 transitions [2020-01-16 19:54:47,707 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6818 states. [2020-01-16 19:54:47,709 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states. [2020-01-16 19:54:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:47,779 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:47,780 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:47,781 INFO L426 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:47,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:47,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1176015965, now seen corresponding path program 1 times [2020-01-16 19:54:47,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:47,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173746203] [2020-01-16 19:54:47,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:47,959 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 19:54:47,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173746203] [2020-01-16 19:54:47,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:47,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 19:54:47,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1288857182] [2020-01-16 19:54:47,963 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:48,023 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:48,154 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:48,155 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:48,176 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2020-01-16 19:54:48,177 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 19:54:48,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:54:48,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 19:54:48,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:48,195 INFO L87 Difference]: Start difference. First operand 6818 states. Second operand 3 states. [2020-01-16 19:54:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:54:48,375 INFO L93 Difference]: Finished difference Result 6690 states and 34994 transitions. [2020-01-16 19:54:48,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 19:54:48,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-01-16 19:54:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:54:48,466 INFO L225 Difference]: With dead ends: 6690 [2020-01-16 19:54:48,466 INFO L226 Difference]: Without dead ends: 6689 [2020-01-16 19:54:48,469 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:48,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2020-01-16 19:54:48,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6689. [2020-01-16 19:54:48,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6689 states. [2020-01-16 19:54:48,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 34993 transitions. [2020-01-16 19:54:48,986 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 34993 transitions. Word has length 25 [2020-01-16 19:54:48,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:54:48,987 INFO L478 AbstractCegarLoop]: Abstraction has 6689 states and 34993 transitions. [2020-01-16 19:54:48,987 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 19:54:48,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 34993 transitions. [2020-01-16 19:54:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:49,015 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:49,015 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:49,015 INFO L426 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:49,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:49,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1467806563, now seen corresponding path program 1 times [2020-01-16 19:54:49,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:49,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152627559] [2020-01-16 19:54:49,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:49,060 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 19:54:49,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152627559] [2020-01-16 19:54:49,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:49,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 19:54:49,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1152683935] [2020-01-16 19:54:49,062 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:49,065 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:49,284 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:49,284 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:49,291 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2020-01-16 19:54:49,294 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 19:54:49,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:54:49,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 19:54:49,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:49,296 INFO L87 Difference]: Start difference. First operand 6689 states and 34993 transitions. Second operand 3 states. [2020-01-16 19:54:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:54:49,411 INFO L93 Difference]: Finished difference Result 4881 states and 24065 transitions. [2020-01-16 19:54:49,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 19:54:49,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-01-16 19:54:49,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:54:49,476 INFO L225 Difference]: With dead ends: 4881 [2020-01-16 19:54:49,476 INFO L226 Difference]: Without dead ends: 4881 [2020-01-16 19:54:49,478 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2020-01-16 19:54:50,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 4881. [2020-01-16 19:54:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4881 states. [2020-01-16 19:54:50,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4881 states to 4881 states and 24065 transitions. [2020-01-16 19:54:50,248 INFO L78 Accepts]: Start accepts. Automaton has 4881 states and 24065 transitions. Word has length 25 [2020-01-16 19:54:50,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:54:50,249 INFO L478 AbstractCegarLoop]: Abstraction has 4881 states and 24065 transitions. [2020-01-16 19:54:50,253 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 19:54:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4881 states and 24065 transitions. [2020-01-16 19:54:50,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:50,275 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:50,283 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:50,284 INFO L426 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:50,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:50,284 INFO L82 PathProgramCache]: Analyzing trace with hash -795426887, now seen corresponding path program 1 times [2020-01-16 19:54:50,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:50,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372565968] [2020-01-16 19:54:50,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:50,333 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 19:54:50,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372565968] [2020-01-16 19:54:50,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:50,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 19:54:50,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2012280110] [2020-01-16 19:54:50,335 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:50,338 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:50,419 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:50,420 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:50,426 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 6 times. [2020-01-16 19:54:50,426 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 19:54:50,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:54:50,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 19:54:50,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:50,427 INFO L87 Difference]: Start difference. First operand 4881 states and 24065 transitions. Second operand 3 states. [2020-01-16 19:54:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:54:50,471 INFO L93 Difference]: Finished difference Result 3205 states and 15221 transitions. [2020-01-16 19:54:50,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 19:54:50,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-01-16 19:54:50,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:54:50,487 INFO L225 Difference]: With dead ends: 3205 [2020-01-16 19:54:50,487 INFO L226 Difference]: Without dead ends: 3205 [2020-01-16 19:54:50,488 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:50,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2020-01-16 19:54:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3205. [2020-01-16 19:54:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3205 states. [2020-01-16 19:54:50,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 15221 transitions. [2020-01-16 19:54:50,621 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 15221 transitions. Word has length 25 [2020-01-16 19:54:50,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:54:50,621 INFO L478 AbstractCegarLoop]: Abstraction has 3205 states and 15221 transitions. [2020-01-16 19:54:50,621 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 19:54:50,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 15221 transitions. [2020-01-16 19:54:50,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:50,632 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:50,633 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:50,633 INFO L426 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:50,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:50,633 INFO L82 PathProgramCache]: Analyzing trace with hash 694354523, now seen corresponding path program 1 times [2020-01-16 19:54:50,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:50,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39452352] [2020-01-16 19:54:50,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:50,687 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 19:54:50,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39452352] [2020-01-16 19:54:50,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:50,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 19:54:50,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1515427745] [2020-01-16 19:54:50,689 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:50,691 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:50,860 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:50,860 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:50,869 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 7 times. [2020-01-16 19:54:50,869 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 19:54:50,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:54:50,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 19:54:50,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:50,874 INFO L87 Difference]: Start difference. First operand 3205 states and 15221 transitions. Second operand 3 states. [2020-01-16 19:54:50,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:54:50,915 INFO L93 Difference]: Finished difference Result 2757 states and 12469 transitions. [2020-01-16 19:54:50,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 19:54:50,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-01-16 19:54:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:54:50,929 INFO L225 Difference]: With dead ends: 2757 [2020-01-16 19:54:50,929 INFO L226 Difference]: Without dead ends: 2757 [2020-01-16 19:54:50,929 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:50,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2020-01-16 19:54:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2757. [2020-01-16 19:54:51,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2757 states. [2020-01-16 19:54:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 12469 transitions. [2020-01-16 19:54:51,042 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 12469 transitions. Word has length 25 [2020-01-16 19:54:51,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:54:51,042 INFO L478 AbstractCegarLoop]: Abstraction has 2757 states and 12469 transitions. [2020-01-16 19:54:51,043 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 19:54:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 12469 transitions. [2020-01-16 19:54:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:51,051 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:51,051 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:51,051 INFO L426 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1749585931, now seen corresponding path program 1 times [2020-01-16 19:54:51,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:51,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406180704] [2020-01-16 19:54:51,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:51,075 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 19:54:51,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406180704] [2020-01-16 19:54:51,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:51,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 19:54:51,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1609452359] [2020-01-16 19:54:51,076 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:51,078 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:51,144 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:51,144 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:51,150 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2020-01-16 19:54:51,150 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 19:54:51,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:54:51,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 19:54:51,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:51,151 INFO L87 Difference]: Start difference. First operand 2757 states and 12469 transitions. Second operand 3 states. [2020-01-16 19:54:51,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:54:51,185 INFO L93 Difference]: Finished difference Result 1773 states and 7633 transitions. [2020-01-16 19:54:51,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 19:54:51,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-01-16 19:54:51,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:54:51,193 INFO L225 Difference]: With dead ends: 1773 [2020-01-16 19:54:51,193 INFO L226 Difference]: Without dead ends: 1773 [2020-01-16 19:54:51,194 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2020-01-16 19:54:51,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1773. [2020-01-16 19:54:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1773 states. [2020-01-16 19:54:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 7633 transitions. [2020-01-16 19:54:51,269 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 7633 transitions. Word has length 25 [2020-01-16 19:54:51,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:54:51,269 INFO L478 AbstractCegarLoop]: Abstraction has 1773 states and 7633 transitions. [2020-01-16 19:54:51,269 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 19:54:51,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 7633 transitions. [2020-01-16 19:54:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:51,277 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:51,278 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:51,278 INFO L426 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:51,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:51,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1906045009, now seen corresponding path program 1 times [2020-01-16 19:54:51,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:51,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66787448] [2020-01-16 19:54:51,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:51,301 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 19:54:51,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66787448] [2020-01-16 19:54:51,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:51,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 19:54:51,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1055501423] [2020-01-16 19:54:51,303 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:51,306 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:51,369 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:51,369 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:51,375 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2020-01-16 19:54:51,376 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 19:54:51,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:54:51,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 19:54:51,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:51,377 INFO L87 Difference]: Start difference. First operand 1773 states and 7633 transitions. Second operand 3 states. [2020-01-16 19:54:51,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:54:51,398 INFO L93 Difference]: Finished difference Result 1119 states and 4673 transitions. [2020-01-16 19:54:51,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 19:54:51,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-01-16 19:54:51,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:54:51,403 INFO L225 Difference]: With dead ends: 1119 [2020-01-16 19:54:51,404 INFO L226 Difference]: Without dead ends: 1119 [2020-01-16 19:54:51,404 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2020-01-16 19:54:51,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1119. [2020-01-16 19:54:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-01-16 19:54:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 4673 transitions. [2020-01-16 19:54:51,519 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 4673 transitions. Word has length 25 [2020-01-16 19:54:51,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:54:51,520 INFO L478 AbstractCegarLoop]: Abstraction has 1119 states and 4673 transitions. [2020-01-16 19:54:51,520 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 19:54:51,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 4673 transitions. [2020-01-16 19:54:51,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:51,527 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:51,527 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:51,527 INFO L426 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:51,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:51,528 INFO L82 PathProgramCache]: Analyzing trace with hash -389208845, now seen corresponding path program 1 times [2020-01-16 19:54:51,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:51,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834953430] [2020-01-16 19:54:51,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:51,580 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 19:54:51,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834953430] [2020-01-16 19:54:51,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:51,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 19:54:51,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [346183601] [2020-01-16 19:54:51,582 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:51,584 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:51,659 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:51,659 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:51,668 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2020-01-16 19:54:51,669 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 19:54:51,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:54:51,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 19:54:51,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:51,670 INFO L87 Difference]: Start difference. First operand 1119 states and 4673 transitions. Second operand 3 states. [2020-01-16 19:54:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:54:51,682 INFO L93 Difference]: Finished difference Result 767 states and 3073 transitions. [2020-01-16 19:54:51,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 19:54:51,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-01-16 19:54:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:54:51,686 INFO L225 Difference]: With dead ends: 767 [2020-01-16 19:54:51,686 INFO L226 Difference]: Without dead ends: 767 [2020-01-16 19:54:51,686 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 19:54:51,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2020-01-16 19:54:51,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2020-01-16 19:54:51,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-01-16 19:54:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 3073 transitions. [2020-01-16 19:54:51,721 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 3073 transitions. Word has length 25 [2020-01-16 19:54:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:54:51,723 INFO L478 AbstractCegarLoop]: Abstraction has 767 states and 3073 transitions. [2020-01-16 19:54:51,723 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 19:54:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 3073 transitions. [2020-01-16 19:54:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-01-16 19:54:51,726 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 19:54:51,726 INFO L415 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 19:54:51,726 INFO L426 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-01-16 19:54:51,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 19:54:51,727 INFO L82 PathProgramCache]: Analyzing trace with hash -377910571, now seen corresponding path program 1 times [2020-01-16 19:54:51,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 19:54:51,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137804786] [2020-01-16 19:54:51,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 19:54:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 19:54:52,494 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 19:54:52,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137804786] [2020-01-16 19:54:52,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 19:54:52,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-01-16 19:54:52,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [255056766] [2020-01-16 19:54:52,495 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 19:54:52,497 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 19:54:52,572 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 767 states and 3073 transitions. [2020-01-16 19:54:52,573 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 19:54:53,403 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-01-16 19:55:15,939 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 484 times. [2020-01-16 19:55:15,939 INFO L458 AbstractCegarLoop]: Interpolant automaton has 321 states [2020-01-16 19:55:15,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 19:55:15,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 321 interpolants. [2020-01-16 19:55:15,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7703, Invalid=95017, Unknown=0, NotChecked=0, Total=102720 [2020-01-16 19:55:15,959 INFO L87 Difference]: Start difference. First operand 767 states and 3073 transitions. Second operand 321 states. [2020-01-16 19:57:02,822 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-01-16 19:57:03,811 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 25 [2020-01-16 19:57:04,873 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2020-01-16 19:57:05,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 19:57:05,240 INFO L93 Difference]: Finished difference Result 890 states and 3516 transitions. [2020-01-16 19:57:05,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 321 states. [2020-01-16 19:57:05,240 INFO L78 Accepts]: Start accepts. Automaton has 321 states. Word has length 25 [2020-01-16 19:57:05,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 19:57:05,240 INFO L225 Difference]: With dead ends: 890 [2020-01-16 19:57:05,240 INFO L226 Difference]: Without dead ends: 0 [2020-01-16 19:57:05,247 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 447 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103803 ImplicationChecksByTransitivity, 45.7s TimeCoverageRelationStatistics Valid=15849, Invalid=185303, Unknown=0, NotChecked=0, Total=201152 [2020-01-16 19:57:05,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-01-16 19:57:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-01-16 19:57:05,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-01-16 19:57:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-01-16 19:57:05,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-01-16 19:57:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 19:57:05,248 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-01-16 19:57:05,248 INFO L479 AbstractCegarLoop]: Interpolant automaton has 321 states. [2020-01-16 19:57:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-01-16 19:57:05,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-01-16 19:57:05,252 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.01 07:57:05 BasicIcfg [2020-01-16 19:57:05,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-01-16 19:57:05,254 INFO L168 Benchmark]: Toolchain (without parser) took 139986.32 ms. Allocated memory was 138.4 MB in the beginning and 1.0 GB in the end (delta: 876.6 MB). Free memory was 120.3 MB in the beginning and 491.7 MB in the end (delta: -371.3 MB). Peak memory consumption was 505.3 MB. Max. memory is 7.1 GB. [2020-01-16 19:57:05,254 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-01-16 19:57:05,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.38 ms. Allocated memory is still 138.4 MB. Free memory was 120.1 MB in the beginning and 118.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-01-16 19:57:05,256 INFO L168 Benchmark]: Boogie Preprocessor took 23.67 ms. Allocated memory is still 138.4 MB. Free memory was 118.5 MB in the beginning and 117.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-01-16 19:57:05,256 INFO L168 Benchmark]: RCFGBuilder took 370.37 ms. Allocated memory is still 138.4 MB. Free memory was 117.2 MB in the beginning and 104.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-01-16 19:57:05,257 INFO L168 Benchmark]: TraceAbstraction took 139547.61 ms. Allocated memory was 138.4 MB in the beginning and 1.0 GB in the end (delta: 876.6 MB). Free memory was 103.8 MB in the beginning and 491.7 MB in the end (delta: -387.9 MB). Peak memory consumption was 488.8 MB. Max. memory is 7.1 GB. [2020-01-16 19:57:05,260 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 0.46 ms. Allocated memory is still 138.4 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.38 ms. Allocated memory is still 138.4 MB. Free memory was 120.1 MB in the beginning and 118.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.67 ms. Allocated memory is still 138.4 MB. Free memory was 118.5 MB in the beginning and 117.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 370.37 ms. Allocated memory is still 138.4 MB. Free memory was 117.2 MB in the beginning and 104.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 139547.61 ms. Allocated memory was 138.4 MB in the beginning and 1.0 GB in the end (delta: 876.6 MB). Free memory was 103.8 MB in the beginning and 491.7 MB in the end (delta: -387.9 MB). Peak memory consumption was 488.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 68 ProgramPointsBefore, 58 ProgramPointsAfterwards, 99 TransitionsBefore, 90 TransitionsAfterwards, 1904 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 504 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 532 CheckedPairsTotal, 9 TotalNumberOfCompositions - PositiveResult [Line: 29]: 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 9 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. Result: SAFE, OverallTime: 139.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 109.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 1955 SDtfs, 2243 SDslu, 127728 SDs, 0 SdLazy, 93043 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 749 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 454 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103803 ImplicationChecksByTransitivity, 45.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6818occurred 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: 1.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 24960 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...