/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_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-abd8500 [2020-01-16 20:50:46,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-01-16 20:50:46,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-01-16 20:50:46,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-01-16 20:50:46,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-01-16 20:50:46,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-01-16 20:50:46,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-01-16 20:50:46,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-01-16 20:50:46,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-01-16 20:50:46,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-01-16 20:50:46,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-01-16 20:50:46,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-01-16 20:50:46,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-01-16 20:50:46,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-01-16 20:50:46,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-01-16 20:50:46,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2020-01-16 20:50:46,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-01-16 20:50:46,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-01-16 20:50:46,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-01-16 20:50:46,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-01-16 20:50:46,171 INFO L138 SettingsManager]: * Use SBE=true [2020-01-16 20:50:46,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-01-16 20:50:46,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-01-16 20:50:46,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-01-16 20:50:46,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-01-16 20:50:46,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-01-16 20:50:46,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-01-16 20:50:46,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-01-16 20:50:46,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-01-16 20:50:46,173 INFO L138 SettingsManager]: * sizeof long double=12 [2020-01-16 20:50:46,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-01-16 20:50:46,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-01-16 20:50:46,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-01-16 20:50:46,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-01-16 20:50:46,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-01-16 20:50:46,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-01-16 20:50:46,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-01-16 20:50:46,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-01-16 20:50:46,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-01-16 20:50:46,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-01-16 20:50:46,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-01-16 20:50:46,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-01-16 20:50:46,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-01-16 20:50:46,176 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-01-16 20:50:46,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-01-16 20:50:46,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-01-16 20:50:46,176 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-01-16 20:50:46,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-01-16 20:50:46,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-01-16 20:50:46,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-01-16 20:50:46,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-01-16 20:50:46,464 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-01-16 20:50:46,465 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-01-16 20:50:46,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2020-01-16 20:50:46,466 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2020-01-16 20:50:46,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-01-16 20:50:46,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-01-16 20:50:46,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-01-16 20:50:46,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-01-16 20:50:46,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-01-16 20:50:46,515 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,524 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-01-16 20:50:46,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-01-16 20:50:46,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-01-16 20:50:46,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-01-16 20:50:46,546 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,546 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,547 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,547 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,551 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,552 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,553 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 08:50:46" (1/1) ... [2020-01-16 20:50:46,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-01-16 20:50:46,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-01-16 20:50:46,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-01-16 20:50:46,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-01-16 20:50:46,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-01-16 20:50:46,630 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-01-16 20:50:46,631 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-01-16 20:50:46,631 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-01-16 20:50:46,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-01-16 20:50:46,632 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-01-16 20:50:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-01-16 20:50:46,633 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-01-16 20:50:46,634 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-01-16 20:50:46,634 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-01-16 20:50:46,634 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2020-01-16 20:50:46,634 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2020-01-16 20:50:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2020-01-16 20:50:46,635 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-01-16 20:50:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-01-16 20:50:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-01-16 20:50:46,635 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-01-16 20:50:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-01-16 20:50:46,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-01-16 20:50:46,636 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2020-01-16 20:50:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2020-01-16 20:50:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2020-01-16 20:50:46,637 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2020-01-16 20:50:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2020-01-16 20:50:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2020-01-16 20:50:46,639 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2020-01-16 20:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2020-01-16 20:50:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2020-01-16 20:50:46,641 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-01-16 20:50:46,896 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-01-16 20:50:46,896 INFO L287 CfgBuilder]: Removed 0 assume(true) statements. [2020-01-16 20:50:46,898 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.01 08:50:46 BoogieIcfgContainer [2020-01-16 20:50:46,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-01-16 20:50:46,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-01-16 20:50:46,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-01-16 20:50:46,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-01-16 20:50:46,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.01 08:50:46" (1/2) ... [2020-01-16 20:50:46,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c50e63e and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.01 08:50:46, skipping insertion in model container [2020-01-16 20:50:46,904 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 08:50:46" (2/2) ... [2020-01-16 20:50:46,906 INFO L109 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2020-01-16 20:50:46,916 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-01-16 20:50:46,916 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-01-16 20:50:46,930 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-01-16 20:50:46,931 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-01-16 20:50:47,148 INFO L250 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-01-16 20:50:47,166 INFO L374 AbstractCegarLoop]: Interprodecural is true [2020-01-16 20:50:47,167 INFO L375 AbstractCegarLoop]: Hoare is true [2020-01-16 20:50:47,167 INFO L376 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-01-16 20:50:47,167 INFO L377 AbstractCegarLoop]: Backedges is MCR [2020-01-16 20:50:47,167 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-01-16 20:50:47,167 INFO L379 AbstractCegarLoop]: Difference is false [2020-01-16 20:50:47,168 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-01-16 20:50:47,168 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-01-16 20:50:47,182 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 99 transitions [2020-01-16 20:51:01,400 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 68819 states. [2020-01-16 20:51:01,402 INFO L276 IsEmpty]: Start isEmpty. Operand 68819 states. [2020-01-16 20:51:01,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:01,760 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:01,761 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:01,762 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 20:51:01,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash 322589815, now seen corresponding path program 1 times [2020-01-16 20:51:01,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:01,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408718122] [2020-01-16 20:51:01,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:01,959 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 20:51:01,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408718122] [2020-01-16 20:51:01,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:01,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:51:01,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [967915711] [2020-01-16 20:51:01,966 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:01,976 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:05,425 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:05,426 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:51:05,549 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 9 times. [2020-01-16 20:51:05,550 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 20:51:05,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:51:05,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 20:51:05,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 20:51:05,568 INFO L87 Difference]: Start difference. First operand 68819 states. Second operand 3 states. [2020-01-16 20:51:06,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:51:06,561 INFO L93 Difference]: Finished difference Result 66632 states and 393219 transitions. [2020-01-16 20:51:06,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 20:51:06,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-01-16 20:51:06,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:51:07,174 INFO L225 Difference]: With dead ends: 66632 [2020-01-16 20:51:07,174 INFO L226 Difference]: Without dead ends: 66630 [2020-01-16 20:51:07,176 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 20:51:11,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66630 states. [2020-01-16 20:51:13,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66630 to 66630. [2020-01-16 20:51:13,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66630 states. [2020-01-16 20:51:17,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66630 states to 66630 states and 393217 transitions. [2020-01-16 20:51:17,381 INFO L78 Accepts]: Start accepts. Automaton has 66630 states and 393217 transitions. Word has length 33 [2020-01-16 20:51:17,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:51:17,382 INFO L478 AbstractCegarLoop]: Abstraction has 66630 states and 393217 transitions. [2020-01-16 20:51:17,382 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 20:51:17,382 INFO L276 IsEmpty]: Start isEmpty. Operand 66630 states and 393217 transitions. [2020-01-16 20:51:17,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:17,647 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:17,647 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:17,648 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 20:51:17,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:17,648 INFO L82 PathProgramCache]: Analyzing trace with hash -469237921, now seen corresponding path program 1 times [2020-01-16 20:51:17,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:17,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034427819] [2020-01-16 20:51:17,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:51:17,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034427819] [2020-01-16 20:51:17,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:17,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:51:17,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1131505619] [2020-01-16 20:51:17,709 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:17,715 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:19,590 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:19,591 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:51:19,680 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 14 times. [2020-01-16 20:51:19,682 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 20:51:19,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:51:19,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 20:51:19,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 20:51:19,683 INFO L87 Difference]: Start difference. First operand 66630 states and 393217 transitions. Second operand 3 states. [2020-01-16 20:51:20,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:51:20,668 INFO L93 Difference]: Finished difference Result 59340 states and 340729 transitions. [2020-01-16 20:51:20,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 20:51:20,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-01-16 20:51:20,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:51:21,029 INFO L225 Difference]: With dead ends: 59340 [2020-01-16 20:51:21,030 INFO L226 Difference]: Without dead ends: 59340 [2020-01-16 20:51:21,031 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 20:51:23,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59340 states. [2020-01-16 20:51:28,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59340 to 59340. [2020-01-16 20:51:28,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59340 states. [2020-01-16 20:51:28,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59340 states to 59340 states and 340729 transitions. [2020-01-16 20:51:28,842 INFO L78 Accepts]: Start accepts. Automaton has 59340 states and 340729 transitions. Word has length 33 [2020-01-16 20:51:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:51:28,842 INFO L478 AbstractCegarLoop]: Abstraction has 59340 states and 340729 transitions. [2020-01-16 20:51:28,843 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 20:51:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 59340 states and 340729 transitions. [2020-01-16 20:51:29,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:29,080 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:29,080 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:29,081 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 20:51:29,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:29,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1980580347, now seen corresponding path program 1 times [2020-01-16 20:51:29,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:29,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168317614] [2020-01-16 20:51:29,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:51:29,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168317614] [2020-01-16 20:51:29,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:29,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:51:29,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [128574082] [2020-01-16 20:51:29,130 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:29,133 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:31,004 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:31,004 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:51:31,059 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 16 times. [2020-01-16 20:51:31,059 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 20:51:31,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:51:31,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 20:51:31,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 20:51:31,060 INFO L87 Difference]: Start difference. First operand 59340 states and 340729 transitions. Second operand 3 states. [2020-01-16 20:51:31,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:51:31,922 INFO L93 Difference]: Finished difference Result 43707 states and 246391 transitions. [2020-01-16 20:51:31,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 20:51:31,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-01-16 20:51:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:51:32,122 INFO L225 Difference]: With dead ends: 43707 [2020-01-16 20:51:32,122 INFO L226 Difference]: Without dead ends: 43707 [2020-01-16 20:51:32,123 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 20:51:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43707 states. [2020-01-16 20:51:35,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43707 to 43707. [2020-01-16 20:51:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43707 states. [2020-01-16 20:51:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43707 states to 43707 states and 246391 transitions. [2020-01-16 20:51:35,547 INFO L78 Accepts]: Start accepts. Automaton has 43707 states and 246391 transitions. Word has length 33 [2020-01-16 20:51:35,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:51:35,548 INFO L478 AbstractCegarLoop]: Abstraction has 43707 states and 246391 transitions. [2020-01-16 20:51:35,548 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 20:51:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 43707 states and 246391 transitions. [2020-01-16 20:51:35,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:35,637 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:35,637 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:35,637 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 20:51:35,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:35,638 INFO L82 PathProgramCache]: Analyzing trace with hash -876254783, now seen corresponding path program 1 times [2020-01-16 20:51:35,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:35,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715875048] [2020-01-16 20:51:35,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:51:35,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715875048] [2020-01-16 20:51:35,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:35,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:51:35,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1083139833] [2020-01-16 20:51:35,680 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:35,682 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:38,602 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:38,602 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:51:38,640 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 15 times. [2020-01-16 20:51:38,641 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 20:51:38,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:51:38,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 20:51:38,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 20:51:38,642 INFO L87 Difference]: Start difference. First operand 43707 states and 246391 transitions. Second operand 3 states. [2020-01-16 20:51:38,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:51:38,871 INFO L93 Difference]: Finished difference Result 32205 states and 178297 transitions. [2020-01-16 20:51:38,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 20:51:38,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-01-16 20:51:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:51:38,974 INFO L225 Difference]: With dead ends: 32205 [2020-01-16 20:51:38,974 INFO L226 Difference]: Without dead ends: 32205 [2020-01-16 20:51:38,975 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 20:51:40,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32205 states. [2020-01-16 20:51:43,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32205 to 32205. [2020-01-16 20:51:43,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32205 states. [2020-01-16 20:51:43,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32205 states to 32205 states and 178297 transitions. [2020-01-16 20:51:43,767 INFO L78 Accepts]: Start accepts. Automaton has 32205 states and 178297 transitions. Word has length 33 [2020-01-16 20:51:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:51:43,767 INFO L478 AbstractCegarLoop]: Abstraction has 32205 states and 178297 transitions. [2020-01-16 20:51:43,767 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 20:51:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 32205 states and 178297 transitions. [2020-01-16 20:51:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:43,830 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:43,830 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:43,830 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 20:51:43,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:43,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1891952389, now seen corresponding path program 1 times [2020-01-16 20:51:43,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:43,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575095861] [2020-01-16 20:51:43,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:51:43,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575095861] [2020-01-16 20:51:43,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:43,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:51:43,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1076423564] [2020-01-16 20:51:43,877 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:43,880 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:45,595 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:45,595 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:51:45,632 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 16 times. [2020-01-16 20:51:45,633 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 20:51:45,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:51:45,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 20:51:45,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 20:51:45,633 INFO L87 Difference]: Start difference. First operand 32205 states and 178297 transitions. Second operand 3 states. [2020-01-16 20:51:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:51:45,857 INFO L93 Difference]: Finished difference Result 24672 states and 133261 transitions. [2020-01-16 20:51:45,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 20:51:45,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-01-16 20:51:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:51:45,929 INFO L225 Difference]: With dead ends: 24672 [2020-01-16 20:51:45,929 INFO L226 Difference]: Without dead ends: 24672 [2020-01-16 20:51:45,930 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 20:51:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24672 states. [2020-01-16 20:51:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24672 to 24672. [2020-01-16 20:51:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24672 states. [2020-01-16 20:51:47,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24672 states to 24672 states and 133261 transitions. [2020-01-16 20:51:47,829 INFO L78 Accepts]: Start accepts. Automaton has 24672 states and 133261 transitions. Word has length 33 [2020-01-16 20:51:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:51:47,829 INFO L478 AbstractCegarLoop]: Abstraction has 24672 states and 133261 transitions. [2020-01-16 20:51:47,829 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 20:51:47,830 INFO L276 IsEmpty]: Start isEmpty. Operand 24672 states and 133261 transitions. [2020-01-16 20:51:47,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:47,877 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:47,877 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:47,877 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 20:51:47,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:47,877 INFO L82 PathProgramCache]: Analyzing trace with hash -201567345, now seen corresponding path program 1 times [2020-01-16 20:51:47,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:47,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287053493] [2020-01-16 20:51:47,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:47,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:51:47,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287053493] [2020-01-16 20:51:47,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:47,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:51:47,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1633382063] [2020-01-16 20:51:47,908 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:47,911 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:49,770 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:49,770 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:51:49,811 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 22 times. [2020-01-16 20:51:49,811 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 20:51:49,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:51:49,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 20:51:49,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 20:51:49,812 INFO L87 Difference]: Start difference. First operand 24672 states and 133261 transitions. Second operand 3 states. [2020-01-16 20:51:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:51:49,923 INFO L93 Difference]: Finished difference Result 17820 states and 95581 transitions. [2020-01-16 20:51:49,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 20:51:49,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-01-16 20:51:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:51:49,975 INFO L225 Difference]: With dead ends: 17820 [2020-01-16 20:51:49,975 INFO L226 Difference]: Without dead ends: 17820 [2020-01-16 20:51:49,976 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 20:51:50,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2020-01-16 20:51:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 17820. [2020-01-16 20:51:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17820 states. [2020-01-16 20:51:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 95581 transitions. [2020-01-16 20:51:51,256 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 95581 transitions. Word has length 33 [2020-01-16 20:51:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:51:51,257 INFO L478 AbstractCegarLoop]: Abstraction has 17820 states and 95581 transitions. [2020-01-16 20:51:51,257 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 20:51:51,257 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 95581 transitions. [2020-01-16 20:51:51,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:51,291 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:51,292 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:51,292 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 20:51:51,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:51,292 INFO L82 PathProgramCache]: Analyzing trace with hash 519047745, now seen corresponding path program 1 times [2020-01-16 20:51:51,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:51,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627244358] [2020-01-16 20:51:51,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:51:51,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627244358] [2020-01-16 20:51:51,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:51,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-01-16 20:51:51,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1339353414] [2020-01-16 20:51:51,336 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:51,339 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:52,787 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:52,787 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:51:52,823 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 18 times. [2020-01-16 20:51:52,824 INFO L458 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-01-16 20:51:52,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:51:52,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-01-16 20:51:52,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-01-16 20:51:52,825 INFO L87 Difference]: Start difference. First operand 17820 states and 95581 transitions. Second operand 3 states. [2020-01-16 20:51:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:51:52,908 INFO L93 Difference]: Finished difference Result 13122 states and 69985 transitions. [2020-01-16 20:51:52,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-01-16 20:51:52,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-01-16 20:51:52,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:51:52,965 INFO L225 Difference]: With dead ends: 13122 [2020-01-16 20:51:52,966 INFO L226 Difference]: Without dead ends: 13122 [2020-01-16 20:51:52,967 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 20:51:54,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13122 states. [2020-01-16 20:51:55,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13122 to 13122. [2020-01-16 20:51:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13122 states. [2020-01-16 20:51:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13122 states to 13122 states and 69985 transitions. [2020-01-16 20:51:55,141 INFO L78 Accepts]: Start accepts. Automaton has 13122 states and 69985 transitions. Word has length 33 [2020-01-16 20:51:55,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:51:55,141 INFO L478 AbstractCegarLoop]: Abstraction has 13122 states and 69985 transitions. [2020-01-16 20:51:55,141 INFO L479 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-01-16 20:51:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 13122 states and 69985 transitions. [2020-01-16 20:51:55,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-01-16 20:51:55,166 INFO L407 BasicCegarLoop]: Found error trace [2020-01-16 20:51:55,166 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-01-16 20:51:55,167 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 20:51:55,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-01-16 20:51:55,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1645366767, now seen corresponding path program 1 times [2020-01-16 20:51:55,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-01-16 20:51:55,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276697820] [2020-01-16 20:51:55,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-01-16 20:51:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-01-16 20:51:55,874 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-01-16 20:51:56,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-01-16 20:51:56,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276697820] [2020-01-16 20:51:56,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-01-16 20:51:56,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-01-16 20:51:56,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [549271745] [2020-01-16 20:51:56,013 INFO L124 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2020-01-16 20:51:56,016 INFO L189 pAbStrategyModuleMcr]: Started intersection. [2020-01-16 20:51:57,843 INFO L200 pAbStrategyModuleMcr]: Finished intersection with 13122 states and 69985 transitions. [2020-01-16 20:51:57,843 INFO L211 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2020-01-16 20:52:05,045 WARN L192 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2020-01-16 20:52:09,619 INFO L284 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 454 times. [2020-01-16 20:52:09,620 INFO L458 AbstractCegarLoop]: Interpolant automaton has 257 states [2020-01-16 20:52:09,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-01-16 20:52:09,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2020-01-16 20:52:09,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6307, Invalid=59485, Unknown=0, NotChecked=0, Total=65792 [2020-01-16 20:52:09,638 INFO L87 Difference]: Start difference. First operand 13122 states and 69985 transitions. Second operand 257 states. [2020-01-16 20:52:42,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-01-16 20:52:42,552 INFO L93 Difference]: Finished difference Result 13121 states and 69984 transitions. [2020-01-16 20:52:42,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2020-01-16 20:52:42,552 INFO L78 Accepts]: Start accepts. Automaton has 257 states. Word has length 33 [2020-01-16 20:52:42,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-01-16 20:52:42,553 INFO L225 Difference]: With dead ends: 13121 [2020-01-16 20:52:42,553 INFO L226 Difference]: Without dead ends: 0 [2020-01-16 20:52:42,557 INFO L633 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55865 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=6564, Invalid=59742, Unknown=0, NotChecked=0, Total=66306 [2020-01-16 20:52:42,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-01-16 20:52:42,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-01-16 20:52:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-01-16 20:52:42,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-01-16 20:52:42,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-01-16 20:52:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-01-16 20:52:42,558 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-01-16 20:52:42,558 INFO L479 AbstractCegarLoop]: Interpolant automaton has 257 states. [2020-01-16 20:52:42,558 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-01-16 20:52:42,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-01-16 20:52:42,564 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.01 08:52:42 BasicIcfg [2020-01-16 20:52:42,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-01-16 20:52:42,567 INFO L168 Benchmark]: Toolchain (without parser) took 116068.70 ms. Allocated memory was 137.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 119.8 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 720.8 MB. Max. memory is 7.1 GB. [2020-01-16 20:52:42,567 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-01-16 20:52:42,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.03 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 117.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-01-16 20:52:42,569 INFO L168 Benchmark]: Boogie Preprocessor took 20.75 ms. Allocated memory is still 137.9 MB. Free memory was 117.7 MB in the beginning and 116.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-01-16 20:52:42,570 INFO L168 Benchmark]: RCFGBuilder took 342.83 ms. Allocated memory is still 137.9 MB. Free memory was 116.5 MB in the beginning and 103.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-01-16 20:52:42,571 INFO L168 Benchmark]: TraceAbstraction took 115665.62 ms. Allocated memory was 137.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 102.9 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 703.9 MB. Max. memory is 7.1 GB. [2020-01-16 20:52:42,574 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 0.19 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.03 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 117.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.75 ms. Allocated memory is still 137.9 MB. Free memory was 117.7 MB in the beginning and 116.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.83 ms. Allocated memory is still 137.9 MB. Free memory was 116.5 MB in the beginning and 103.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 115665.62 ms. Allocated memory was 137.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 102.9 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 703.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 115.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 37.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.2s, HoareTripleCheckerStatistics: 3072 SDtfs, 3108 SDslu, 158817 SDs, 0 SdLazy, 33969 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 595 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55865 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68819occurred 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: 31.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 43968 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...