/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d9e330d [2020-02-10 22:32:11,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-02-10 22:32:11,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-02-10 22:32:11,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-02-10 22:32:11,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-02-10 22:32:11,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-02-10 22:32:11,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-02-10 22:32:11,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-02-10 22:32:11,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-02-10 22:32:11,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-02-10 22:32:11,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-02-10 22:32:11,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-02-10 22:32:11,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-02-10 22:32:11,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-02-10 22:32:11,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-02-10 22:32:11,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-02-10 22:32:11,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-02-10 22:32:11,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-02-10 22:32:11,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-02-10 22:32:11,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-02-10 22:32:11,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-02-10 22:32:11,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-02-10 22:32:11,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-02-10 22:32:11,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-02-10 22:32:11,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-02-10 22:32:11,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-02-10 22:32:11,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-02-10 22:32:11,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-02-10 22:32:11,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2020-02-10 22:32:11,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-02-10 22:32:11,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-02-10 22:32:11,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-02-10 22:32:11,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-02-10 22:32:11,874 INFO L138 SettingsManager]: * Use SBE=true [2020-02-10 22:32:11,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-02-10 22:32:11,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-02-10 22:32:11,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-02-10 22:32:11,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-02-10 22:32:11,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-02-10 22:32:11,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-02-10 22:32:11,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-02-10 22:32:11,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-02-10 22:32:11,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-02-10 22:32:11,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-02-10 22:32:11,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-02-10 22:32:11,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-02-10 22:32:11,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-02-10 22:32:11,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-02-10 22:32:11,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-02-10 22:32:11,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-02-10 22:32:11,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 22:32:11,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-02-10 22:32:11,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-02-10 22:32:11,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-02-10 22:32:11,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-02-10 22:32:11,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-02-10 22:32:11,880 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-02-10 22:32:11,881 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-02-10 22:32:11,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-02-10 22:32:11,881 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-02-10 22:32:11,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-02-10 22:32:12,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-02-10 22:32:12,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-02-10 22:32:12,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-02-10 22:32:12,196 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-02-10 22:32:12,197 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-02-10 22:32:12,197 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl [2020-02-10 22:32:12,198 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl' [2020-02-10 22:32:12,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-02-10 22:32:12,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-02-10 22:32:12,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-02-10 22:32:12,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-02-10 22:32:12,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-02-10 22:32:12,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-02-10 22:32:12,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-02-10 22:32:12,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-02-10 22:32:12,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-02-10 22:32:12,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/1) ... [2020-02-10 22:32:12,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-02-10 22:32:12,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-02-10 22:32:12,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-02-10 22:32:12,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-02-10 22:32:12,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (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 22:32:12,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-02-10 22:32:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-02-10 22:32:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-02-10 22:32:12,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-02-10 22:32:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-02-10 22:32:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-02-10 22:32:12,366 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-02-10 22:32:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-02-10 22:32:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-02-10 22:32:12,366 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2020-02-10 22:32:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2020-02-10 22:32:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2020-02-10 22:32:12,367 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-02-10 22:32:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-02-10 22:32:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-02-10 22:32:12,367 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-02-10 22:32:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-02-10 22:32:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-02-10 22:32:12,369 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 22:32:12,571 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-02-10 22:32:12,572 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-02-10 22:32:12,577 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:32:12 BoogieIcfgContainer [2020-02-10 22:32:12,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-02-10 22:32:12,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-02-10 22:32:12,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-02-10 22:32:12,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-02-10 22:32:12,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:32:12" (1/2) ... [2020-02-10 22:32:12,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed3fb17 and model type example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:32:12, skipping insertion in model container [2020-02-10 22:32:12,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:32:12" (2/2) ... [2020-02-10 22:32:12,590 INFO L109 eAbstractionObserver]: Analyzing ICFG example_5.bpl [2020-02-10 22:32:12,601 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-02-10 22:32:12,601 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-02-10 22:32:12,610 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-02-10 22:32:12,611 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-02-10 22:32:12,714 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-02-10 22:32:12,738 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-02-10 22:32:12,739 INFO L376 AbstractCegarLoop]: Hoare is true [2020-02-10 22:32:12,739 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-02-10 22:32:12,739 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-02-10 22:32:12,739 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-02-10 22:32:12,739 INFO L380 AbstractCegarLoop]: Difference is false [2020-02-10 22:32:12,739 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-02-10 22:32:12,740 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-02-10 22:32:12,762 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 48 transitions [2020-02-10 22:32:12,966 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1148 states. [2020-02-10 22:32:12,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states. [2020-02-10 22:32:13,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-02-10 22:32:13,018 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:13,019 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] [2020-02-10 22:32:13,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:13,027 INFO L82 PathProgramCache]: Analyzing trace with hash -794882208, now seen corresponding path program 1 times [2020-02-10 22:32:13,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:13,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709578965] [2020-02-10 22:32:13,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:13,211 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 22:32:13,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709578965] [2020-02-10 22:32:13,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:13,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:13,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [232254754] [2020-02-10 22:32:13,215 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:13,222 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:13,309 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 486 states and 1621 transitions. [2020-02-10 22:32:13,310 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:13,331 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 5 times. [2020-02-10 22:32:13,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:13,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:13,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:13,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:13,350 INFO L87 Difference]: Start difference. First operand 1148 states. Second operand 3 states. [2020-02-10 22:32:13,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:13,398 INFO L93 Difference]: Finished difference Result 959 states and 3411 transitions. [2020-02-10 22:32:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:13,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-02-10 22:32:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:13,438 INFO L225 Difference]: With dead ends: 959 [2020-02-10 22:32:13,438 INFO L226 Difference]: Without dead ends: 957 [2020-02-10 22:32:13,443 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 [2020-02-10 22:32:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-02-10 22:32:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2020-02-10 22:32:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2020-02-10 22:32:13,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 3409 transitions. [2020-02-10 22:32:13,609 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 3409 transitions. Word has length 21 [2020-02-10 22:32:13,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:13,609 INFO L479 AbstractCegarLoop]: Abstraction has 957 states and 3409 transitions. [2020-02-10 22:32:13,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 3409 transitions. [2020-02-10 22:32:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-02-10 22:32:13,616 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:13,616 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] [2020-02-10 22:32:13,616 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:13,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:13,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1132663268, now seen corresponding path program 1 times [2020-02-10 22:32:13,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:13,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899509126] [2020-02-10 22:32:13,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:13,682 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 22:32:13,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899509126] [2020-02-10 22:32:13,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:13,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:13,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1023829971] [2020-02-10 22:32:13,685 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:13,687 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:13,716 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 486 states and 1621 transitions. [2020-02-10 22:32:13,716 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:13,727 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 10 times. [2020-02-10 22:32:13,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:13,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:13,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:13,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:13,731 INFO L87 Difference]: Start difference. First operand 957 states and 3409 transitions. Second operand 3 states. [2020-02-10 22:32:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:13,765 INFO L93 Difference]: Finished difference Result 741 states and 2572 transitions. [2020-02-10 22:32:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:13,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-02-10 22:32:13,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:13,773 INFO L225 Difference]: With dead ends: 741 [2020-02-10 22:32:13,774 INFO L226 Difference]: Without dead ends: 741 [2020-02-10 22:32:13,775 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:13,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-02-10 22:32:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 741. [2020-02-10 22:32:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-02-10 22:32:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 2572 transitions. [2020-02-10 22:32:13,816 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 2572 transitions. Word has length 21 [2020-02-10 22:32:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:13,817 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 2572 transitions. [2020-02-10 22:32:13,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 2572 transitions. [2020-02-10 22:32:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-02-10 22:32:13,821 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:13,822 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] [2020-02-10 22:32:13,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:13,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:13,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1383419134, now seen corresponding path program 1 times [2020-02-10 22:32:13,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:13,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993391523] [2020-02-10 22:32:13,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:13,902 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 22:32:13,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993391523] [2020-02-10 22:32:13,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:13,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:13,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [801733155] [2020-02-10 22:32:13,904 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:13,905 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:13,946 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 486 states and 1621 transitions. [2020-02-10 22:32:13,948 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:13,963 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 10 times. [2020-02-10 22:32:13,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:13,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:13,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:13,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:13,970 INFO L87 Difference]: Start difference. First operand 741 states and 2572 transitions. Second operand 3 states. [2020-02-10 22:32:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:13,995 INFO L93 Difference]: Finished difference Result 567 states and 1945 transitions. [2020-02-10 22:32:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:13,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-02-10 22:32:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:14,005 INFO L225 Difference]: With dead ends: 567 [2020-02-10 22:32:14,005 INFO L226 Difference]: Without dead ends: 567 [2020-02-10 22:32:14,007 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:14,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-02-10 22:32:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2020-02-10 22:32:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-02-10 22:32:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1945 transitions. [2020-02-10 22:32:14,057 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1945 transitions. Word has length 21 [2020-02-10 22:32:14,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:14,058 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 1945 transitions. [2020-02-10 22:32:14,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1945 transitions. [2020-02-10 22:32:14,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-02-10 22:32:14,061 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:14,061 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] [2020-02-10 22:32:14,061 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:14,062 INFO L82 PathProgramCache]: Analyzing trace with hash 609363394, now seen corresponding path program 1 times [2020-02-10 22:32:14,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:14,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963843742] [2020-02-10 22:32:14,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:14,416 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 22:32:14,417 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963843742] [2020-02-10 22:32:14,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:14,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-02-10 22:32:14,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1043166972] [2020-02-10 22:32:14,419 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:14,420 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:14,448 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 486 states and 1621 transitions. [2020-02-10 22:32:14,449 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:15,853 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 63 times. [2020-02-10 22:32:15,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-02-10 22:32:15,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:15,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-02-10 22:32:15,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1379, Unknown=0, NotChecked=0, Total=1640 [2020-02-10 22:32:15,856 INFO L87 Difference]: Start difference. First operand 567 states and 1945 transitions. Second operand 41 states. [2020-02-10 22:32:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:18,575 INFO L93 Difference]: Finished difference Result 763 states and 2568 transitions. [2020-02-10 22:32:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-02-10 22:32:18,576 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 21 [2020-02-10 22:32:18,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:18,579 INFO L225 Difference]: With dead ends: 763 [2020-02-10 22:32:18,580 INFO L226 Difference]: Without dead ends: 321 [2020-02-10 22:32:18,581 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1136 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=777, Invalid=3129, Unknown=0, NotChecked=0, Total=3906 [2020-02-10 22:32:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-02-10 22:32:18,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2020-02-10 22:32:18,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-02-10 22:32:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 991 transitions. [2020-02-10 22:32:18,597 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 991 transitions. Word has length 21 [2020-02-10 22:32:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:18,597 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 991 transitions. [2020-02-10 22:32:18,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-02-10 22:32:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 991 transitions. [2020-02-10 22:32:18,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-02-10 22:32:18,599 INFO L407 BasicCegarLoop]: Found error trace [2020-02-10 22:32:18,600 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] [2020-02-10 22:32:18,600 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:32:18,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:32:18,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1137587280, now seen corresponding path program 1 times [2020-02-10 22:32:18,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:32:18,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478144129] [2020-02-10 22:32:18,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:32:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:32:18,631 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 22:32:18,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478144129] [2020-02-10 22:32:18,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:32:18,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:32:18,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [963434065] [2020-02-10 22:32:18,633 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-02-10 22:32:18,634 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-02-10 22:32:18,663 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 486 states and 1621 transitions. [2020-02-10 22:32:18,663 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-02-10 22:32:18,667 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2020-02-10 22:32:18,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:32:18,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:32:18,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:32:18,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:32:18,669 INFO L87 Difference]: Start difference. First operand 321 states and 991 transitions. Second operand 3 states. [2020-02-10 22:32:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-02-10 22:32:18,672 INFO L93 Difference]: Finished difference Result 230 states and 703 transitions. [2020-02-10 22:32:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:32:18,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-02-10 22:32:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-02-10 22:32:18,672 INFO L225 Difference]: With dead ends: 230 [2020-02-10 22:32:18,673 INFO L226 Difference]: Without dead ends: 0 [2020-02-10 22:32:18,673 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 [2020-02-10 22:32:18,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-02-10 22:32:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-02-10 22:32:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-02-10 22:32:18,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-02-10 22:32:18,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-02-10 22:32:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-02-10 22:32:18,675 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-02-10 22:32:18,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:32:18,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-02-10 22:32:18,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-02-10 22:32:18,681 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:32:18 BasicIcfg [2020-02-10 22:32:18,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-02-10 22:32:18,684 INFO L168 Benchmark]: Toolchain (without parser) took 6452.00 ms. Allocated memory was 136.3 MB in the beginning and 297.3 MB in the end (delta: 161.0 MB). Free memory was 118.2 MB in the beginning and 74.4 MB in the end (delta: 43.8 MB). Peak memory consumption was 204.7 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:18,685 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-02-10 22:32:18,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.94 ms. Allocated memory is still 136.3 MB. Free memory was 118.0 MB in the beginning and 116.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:18,686 INFO L168 Benchmark]: Boogie Preprocessor took 20.15 ms. Allocated memory is still 136.3 MB. Free memory was 116.2 MB in the beginning and 115.3 MB in the end (delta: 933.8 kB). Peak memory consumption was 933.8 kB. Max. memory is 7.1 GB. [2020-02-10 22:32:18,687 INFO L168 Benchmark]: RCFGBuilder took 288.83 ms. Allocated memory is still 136.3 MB. Free memory was 115.1 MB in the beginning and 103.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:18,688 INFO L168 Benchmark]: TraceAbstraction took 6100.11 ms. Allocated memory was 136.3 MB in the beginning and 297.3 MB in the end (delta: 161.0 MB). Free memory was 103.2 MB in the beginning and 74.4 MB in the end (delta: 28.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 7.1 GB. [2020-02-10 22:32:18,695 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 0.18 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.2 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 34.94 ms. Allocated memory is still 136.3 MB. Free memory was 118.0 MB in the beginning and 116.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.15 ms. Allocated memory is still 136.3 MB. Free memory was 116.2 MB in the beginning and 115.3 MB in the end (delta: 933.8 kB). Peak memory consumption was 933.8 kB. Max. memory is 7.1 GB. * RCFGBuilder took 288.83 ms. Allocated memory is still 136.3 MB. Free memory was 115.1 MB in the beginning and 103.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6100.11 ms. Allocated memory was 136.3 MB in the beginning and 297.3 MB in the end (delta: 161.0 MB). Free memory was 103.2 MB in the beginning and 74.4 MB in the end (delta: 28.7 MB). Peak memory consumption was 189.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. Result: SAFE, OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 389 SDtfs, 378 SDslu, 4114 SDs, 0 SdLazy, 1154 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1136 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1148occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 10960 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...