/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 20:51:09,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 20:51:09,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 20:51:09,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 20:51:10,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 20:51:10,021 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 20:51:10,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 20:51:10,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 20:51:10,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 20:51:10,022 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 20:51:10,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 20:51:10,023 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 20:51:10,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 20:51:10,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 20:51:10,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 20:51:10,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 20:51:10,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 20:51:10,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 20:51:10,024 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 20:51:10,024 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 20:51:10,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 20:51:10,025 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 20:51:10,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 20:51:10,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 20:51:10,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 20:51:10,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 20:51:10,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 20:51:10,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 20:51:10,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 20:51:10,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 20:51:10,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 20:51:10,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 20:51:10,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 20:51:10,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 20:51:10,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 20:51:10,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 20:51:10,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 20:51:10,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 20:51:10,301 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 20:51:10,301 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 20:51:10,302 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label03.c [2019-11-23 20:51:10,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c5f358b/7489591b27d94ee7be36a21d898c9ec1/FLAGe404b54f2 [2019-11-23 20:51:10,936 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 20:51:10,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label03.c [2019-11-23 20:51:10,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c5f358b/7489591b27d94ee7be36a21d898c9ec1/FLAGe404b54f2 [2019-11-23 20:51:11,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c5f358b/7489591b27d94ee7be36a21d898c9ec1 [2019-11-23 20:51:11,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 20:51:11,276 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 20:51:11,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 20:51:11,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 20:51:11,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 20:51:11,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:51:11" (1/1) ... [2019-11-23 20:51:11,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef44e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:11, skipping insertion in model container [2019-11-23 20:51:11,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:51:11" (1/1) ... [2019-11-23 20:51:11,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 20:51:11,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 20:51:11,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 20:51:11,863 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 20:51:12,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 20:51:12,020 INFO L208 MainTranslator]: Completed translation [2019-11-23 20:51:12,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12 WrapperNode [2019-11-23 20:51:12,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 20:51:12,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 20:51:12,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 20:51:12,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 20:51:12,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 20:51:12,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 20:51:12,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 20:51:12,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 20:51:12,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (1/1) ... [2019-11-23 20:51:12,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 20:51:12,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 20:51:12,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 20:51:12,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 20:51:12,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (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 [2019-11-23 20:51:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 20:51:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 20:51:13,433 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 20:51:13,433 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 20:51:13,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:51:13 BoogieIcfgContainer [2019-11-23 20:51:13,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 20:51:13,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 20:51:13,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 20:51:13,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 20:51:13,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:51:11" (1/3) ... [2019-11-23 20:51:13,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac7098d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:51:13, skipping insertion in model container [2019-11-23 20:51:13,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:51:12" (2/3) ... [2019-11-23 20:51:13,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac7098d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:51:13, skipping insertion in model container [2019-11-23 20:51:13,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:51:13" (3/3) ... [2019-11-23 20:51:13,444 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label03.c [2019-11-23 20:51:13,454 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 20:51:13,462 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 20:51:13,474 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 20:51:13,518 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 20:51:13,519 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 20:51:13,519 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 20:51:13,519 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 20:51:13,520 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 20:51:13,521 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 20:51:13,521 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 20:51:13,521 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 20:51:13,554 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-23 20:51:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-11-23 20:51:13,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:13,575 INFO L410 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, 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, 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, 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] [2019-11-23 20:51:13,576 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:13,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:13,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1437018794, now seen corresponding path program 1 times [2019-11-23 20:51:13,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:13,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051653760] [2019-11-23 20:51:13,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 20:51:14,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051653760] [2019-11-23 20:51:14,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 20:51:14,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-23 20:51:14,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795834142] [2019-11-23 20:51:14,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-23 20:51:14,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:14,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-23 20:51:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-11-23 20:51:14,743 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 10 states. [2019-11-23 20:51:16,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:16,230 INFO L93 Difference]: Finished difference Result 493 states and 846 transitions. [2019-11-23 20:51:16,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-23 20:51:16,232 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2019-11-23 20:51:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:16,247 INFO L225 Difference]: With dead ends: 493 [2019-11-23 20:51:16,247 INFO L226 Difference]: Without dead ends: 193 [2019-11-23 20:51:16,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2019-11-23 20:51:16,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-23 20:51:16,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-11-23 20:51:16,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-23 20:51:16,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 264 transitions. [2019-11-23 20:51:16,303 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 264 transitions. Word has length 129 [2019-11-23 20:51:16,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:16,304 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 264 transitions. [2019-11-23 20:51:16,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-23 20:51:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 264 transitions. [2019-11-23 20:51:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-23 20:51:16,307 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:16,307 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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, 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, 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, 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] [2019-11-23 20:51:16,308 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:16,308 INFO L82 PathProgramCache]: Analyzing trace with hash 72009246, now seen corresponding path program 1 times [2019-11-23 20:51:16,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:16,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814349805] [2019-11-23 20:51:16,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 20:51:16,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814349805] [2019-11-23 20:51:16,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 20:51:16,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 20:51:16,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144268052] [2019-11-23 20:51:16,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 20:51:16,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:16,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 20:51:16,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 20:51:16,449 INFO L87 Difference]: Start difference. First operand 193 states and 264 transitions. Second operand 3 states. [2019-11-23 20:51:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:16,922 INFO L93 Difference]: Finished difference Result 457 states and 661 transitions. [2019-11-23 20:51:16,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 20:51:16,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-11-23 20:51:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:16,930 INFO L225 Difference]: With dead ends: 457 [2019-11-23 20:51:16,930 INFO L226 Difference]: Without dead ends: 324 [2019-11-23 20:51:16,931 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 20:51:16,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-11-23 20:51:16,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2019-11-23 20:51:16,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-11-23 20:51:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 443 transitions. [2019-11-23 20:51:16,983 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 443 transitions. Word has length 133 [2019-11-23 20:51:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:16,984 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 443 transitions. [2019-11-23 20:51:16,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 20:51:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 443 transitions. [2019-11-23 20:51:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-23 20:51:16,994 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:16,994 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 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, 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] [2019-11-23 20:51:16,995 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:16,995 INFO L82 PathProgramCache]: Analyzing trace with hash -620681437, now seen corresponding path program 1 times [2019-11-23 20:51:16,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:16,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106069021] [2019-11-23 20:51:17,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 20:51:17,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106069021] [2019-11-23 20:51:17,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 20:51:17,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 20:51:17,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867267202] [2019-11-23 20:51:17,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 20:51:17,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:17,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 20:51:17,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 20:51:17,294 INFO L87 Difference]: Start difference. First operand 324 states and 443 transitions. Second operand 4 states. [2019-11-23 20:51:18,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:18,073 INFO L93 Difference]: Finished difference Result 814 states and 1161 transitions. [2019-11-23 20:51:18,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 20:51:18,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2019-11-23 20:51:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:18,077 INFO L225 Difference]: With dead ends: 814 [2019-11-23 20:51:18,077 INFO L226 Difference]: Without dead ends: 455 [2019-11-23 20:51:18,078 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 20:51:18,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-11-23 20:51:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2019-11-23 20:51:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-11-23 20:51:18,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 534 transitions. [2019-11-23 20:51:18,096 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 534 transitions. Word has length 136 [2019-11-23 20:51:18,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:18,097 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 534 transitions. [2019-11-23 20:51:18,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 20:51:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 534 transitions. [2019-11-23 20:51:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-23 20:51:18,100 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:18,100 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 20:51:18,101 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:18,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:18,101 INFO L82 PathProgramCache]: Analyzing trace with hash -647170395, now seen corresponding path program 1 times [2019-11-23 20:51:18,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:18,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830536132] [2019-11-23 20:51:18,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-23 20:51:18,208 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830536132] [2019-11-23 20:51:18,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 20:51:18,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 20:51:18,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398588752] [2019-11-23 20:51:18,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 20:51:18,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:18,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 20:51:18,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 20:51:18,210 INFO L87 Difference]: Start difference. First operand 455 states and 534 transitions. Second operand 3 states. [2019-11-23 20:51:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:18,643 INFO L93 Difference]: Finished difference Result 981 states and 1165 transitions. [2019-11-23 20:51:18,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 20:51:18,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-11-23 20:51:18,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:18,648 INFO L225 Difference]: With dead ends: 981 [2019-11-23 20:51:18,648 INFO L226 Difference]: Without dead ends: 586 [2019-11-23 20:51:18,651 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 20:51:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2019-11-23 20:51:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2019-11-23 20:51:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2019-11-23 20:51:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 677 transitions. [2019-11-23 20:51:18,679 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 677 transitions. Word has length 144 [2019-11-23 20:51:18,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:18,679 INFO L462 AbstractCegarLoop]: Abstraction has 586 states and 677 transitions. [2019-11-23 20:51:18,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 20:51:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 677 transitions. [2019-11-23 20:51:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-23 20:51:18,683 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:18,683 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 20:51:18,684 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:18,684 INFO L82 PathProgramCache]: Analyzing trace with hash -236489853, now seen corresponding path program 1 times [2019-11-23 20:51:18,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:18,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021091985] [2019-11-23 20:51:18,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-23 20:51:18,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021091985] [2019-11-23 20:51:18,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 20:51:18,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 20:51:18,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516423917] [2019-11-23 20:51:18,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 20:51:18,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:18,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 20:51:18,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 20:51:18,746 INFO L87 Difference]: Start difference. First operand 586 states and 677 transitions. Second operand 4 states. [2019-11-23 20:51:19,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:19,518 INFO L93 Difference]: Finished difference Result 2029 states and 2386 transitions. [2019-11-23 20:51:19,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 20:51:19,518 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2019-11-23 20:51:19,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:19,525 INFO L225 Difference]: With dead ends: 2029 [2019-11-23 20:51:19,526 INFO L226 Difference]: Without dead ends: 1503 [2019-11-23 20:51:19,527 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 20:51:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2019-11-23 20:51:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1241. [2019-11-23 20:51:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2019-11-23 20:51:19,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1461 transitions. [2019-11-23 20:51:19,557 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1461 transitions. Word has length 153 [2019-11-23 20:51:19,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:19,558 INFO L462 AbstractCegarLoop]: Abstraction has 1241 states and 1461 transitions. [2019-11-23 20:51:19,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 20:51:19,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1461 transitions. [2019-11-23 20:51:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-23 20:51:19,561 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:19,561 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 20:51:19,562 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:19,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:19,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1280194508, now seen corresponding path program 1 times [2019-11-23 20:51:19,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:19,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708612065] [2019-11-23 20:51:19,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-23 20:51:19,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708612065] [2019-11-23 20:51:19,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 20:51:19,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 20:51:19,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328498985] [2019-11-23 20:51:19,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 20:51:19,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:19,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 20:51:19,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-23 20:51:19,640 INFO L87 Difference]: Start difference. First operand 1241 states and 1461 transitions. Second operand 5 states. [2019-11-23 20:51:20,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:20,654 INFO L93 Difference]: Finished difference Result 2946 states and 3473 transitions. [2019-11-23 20:51:20,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 20:51:20,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2019-11-23 20:51:20,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:20,665 INFO L225 Difference]: With dead ends: 2946 [2019-11-23 20:51:20,665 INFO L226 Difference]: Without dead ends: 1765 [2019-11-23 20:51:20,667 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-23 20:51:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2019-11-23 20:51:20,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1634. [2019-11-23 20:51:20,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2019-11-23 20:51:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 1905 transitions. [2019-11-23 20:51:20,712 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 1905 transitions. Word has length 159 [2019-11-23 20:51:20,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:20,712 INFO L462 AbstractCegarLoop]: Abstraction has 1634 states and 1905 transitions. [2019-11-23 20:51:20,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 20:51:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 1905 transitions. [2019-11-23 20:51:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-11-23 20:51:20,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:20,718 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2019-11-23 20:51:20,718 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:20,719 INFO L82 PathProgramCache]: Analyzing trace with hash -73226021, now seen corresponding path program 1 times [2019-11-23 20:51:20,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:20,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838031080] [2019-11-23 20:51:20,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-23 20:51:20,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838031080] [2019-11-23 20:51:20,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 20:51:20,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 20:51:20,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911979221] [2019-11-23 20:51:20,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 20:51:20,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:20,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 20:51:20,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 20:51:20,843 INFO L87 Difference]: Start difference. First operand 1634 states and 1905 transitions. Second operand 3 states. [2019-11-23 20:51:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:21,324 INFO L93 Difference]: Finished difference Result 3732 states and 4372 transitions. [2019-11-23 20:51:21,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 20:51:21,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-11-23 20:51:21,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:21,334 INFO L225 Difference]: With dead ends: 3732 [2019-11-23 20:51:21,335 INFO L226 Difference]: Without dead ends: 2158 [2019-11-23 20:51:21,337 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 20:51:21,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2019-11-23 20:51:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2027. [2019-11-23 20:51:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2027 states. [2019-11-23 20:51:21,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2321 transitions. [2019-11-23 20:51:21,385 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2321 transitions. Word has length 193 [2019-11-23 20:51:21,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:21,385 INFO L462 AbstractCegarLoop]: Abstraction has 2027 states and 2321 transitions. [2019-11-23 20:51:21,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 20:51:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2321 transitions. [2019-11-23 20:51:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-11-23 20:51:21,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:21,392 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2019-11-23 20:51:21,392 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:21,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1876676455, now seen corresponding path program 1 times [2019-11-23 20:51:21,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:21,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786099321] [2019-11-23 20:51:21,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 139 proven. 27 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-23 20:51:21,609 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786099321] [2019-11-23 20:51:21,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079018111] [2019-11-23 20:51:21,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 20:51:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:21,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 20:51:21,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 20:51:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2019-11-23 20:51:21,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 20:51:21,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-23 20:51:21,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867998075] [2019-11-23 20:51:21,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 20:51:21,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:21,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 20:51:21,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-23 20:51:21,840 INFO L87 Difference]: Start difference. First operand 2027 states and 2321 transitions. Second operand 3 states. [2019-11-23 20:51:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:22,307 INFO L93 Difference]: Finished difference Result 4911 states and 5667 transitions. [2019-11-23 20:51:22,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 20:51:22,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-11-23 20:51:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:22,320 INFO L225 Difference]: With dead ends: 4911 [2019-11-23 20:51:22,320 INFO L226 Difference]: Without dead ends: 2944 [2019-11-23 20:51:22,323 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-23 20:51:22,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2019-11-23 20:51:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2813. [2019-11-23 20:51:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2813 states. [2019-11-23 20:51:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3196 transitions. [2019-11-23 20:51:22,408 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3196 transitions. Word has length 222 [2019-11-23 20:51:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:22,409 INFO L462 AbstractCegarLoop]: Abstraction has 2813 states and 3196 transitions. [2019-11-23 20:51:22,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 20:51:22,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3196 transitions. [2019-11-23 20:51:22,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-11-23 20:51:22,416 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:22,417 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2019-11-23 20:51:22,621 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 20:51:22,621 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:22,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:22,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1376312779, now seen corresponding path program 1 times [2019-11-23 20:51:22,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:22,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842235587] [2019-11-23 20:51:22,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 140 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 20:51:23,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842235587] [2019-11-23 20:51:23,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760358183] [2019-11-23 20:51:23,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 20:51:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:23,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 20:51:23,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 20:51:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-11-23 20:51:23,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 20:51:23,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2019-11-23 20:51:23,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576373995] [2019-11-23 20:51:23,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 20:51:23,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:23,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 20:51:23,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-23 20:51:23,284 INFO L87 Difference]: Start difference. First operand 2813 states and 3196 transitions. Second operand 3 states. [2019-11-23 20:51:23,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:23,753 INFO L93 Difference]: Finished difference Result 5959 states and 6757 transitions. [2019-11-23 20:51:23,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 20:51:23,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-11-23 20:51:23,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:23,767 INFO L225 Difference]: With dead ends: 5959 [2019-11-23 20:51:23,767 INFO L226 Difference]: Without dead ends: 3206 [2019-11-23 20:51:23,771 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-23 20:51:23,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2019-11-23 20:51:23,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2551. [2019-11-23 20:51:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2551 states. [2019-11-23 20:51:23,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 2897 transitions. [2019-11-23 20:51:23,821 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 2897 transitions. Word has length 225 [2019-11-23 20:51:23,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:23,821 INFO L462 AbstractCegarLoop]: Abstraction has 2551 states and 2897 transitions. [2019-11-23 20:51:23,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 20:51:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 2897 transitions. [2019-11-23 20:51:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-11-23 20:51:23,828 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 20:51:23,828 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2019-11-23 20:51:24,031 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 20:51:24,031 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 20:51:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 20:51:24,032 INFO L82 PathProgramCache]: Analyzing trace with hash -605874139, now seen corresponding path program 1 times [2019-11-23 20:51:24,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 20:51:24,032 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479661528] [2019-11-23 20:51:24,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 20:51:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 157 proven. 27 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-23 20:51:24,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479661528] [2019-11-23 20:51:24,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927203768] [2019-11-23 20:51:24,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 20:51:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 20:51:24,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 20:51:24,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 20:51:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-11-23 20:51:24,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-23 20:51:24,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-23 20:51:24,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074004841] [2019-11-23 20:51:24,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 20:51:24,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 20:51:24,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 20:51:24,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-23 20:51:24,399 INFO L87 Difference]: Start difference. First operand 2551 states and 2897 transitions. Second operand 3 states. [2019-11-23 20:51:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 20:51:24,914 INFO L93 Difference]: Finished difference Result 4385 states and 4987 transitions. [2019-11-23 20:51:24,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 20:51:24,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-11-23 20:51:24,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 20:51:24,916 INFO L225 Difference]: With dead ends: 4385 [2019-11-23 20:51:24,916 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 20:51:24,920 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-23 20:51:24,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 20:51:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 20:51:24,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 20:51:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 20:51:24,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 231 [2019-11-23 20:51:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 20:51:24,921 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 20:51:24,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 20:51:24,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 20:51:24,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 20:51:25,122 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 20:51:25,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 20:51:25,377 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-23 20:51:25,380 INFO L444 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-23 20:51:25,380 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-23 20:51:25,380 INFO L444 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,380 INFO L444 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-23 20:51:25,381 INFO L444 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,382 INFO L444 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-23 20:51:25,383 INFO L444 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-23 20:51:25,384 INFO L444 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,385 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-23 20:51:25,386 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-23 20:51:25,387 INFO L440 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse3 (not (= ~a16~0 6))) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 1)) (.cse0 (<= 14 ~a8~0)) (.cse5 (not (= 1 ~a7~0))) (.cse4 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2 (= ~a16~0 5)) (<= ~a21~0 0) (and (= 13 ~a8~0) (= ~a16~0 4) (= ~a17~0 1) (= ~a12~0 8) .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse3 .cse5 .cse4) (and .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse4))) [2019-11-23 20:51:25,387 INFO L444 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,387 INFO L444 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,387 INFO L444 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-23 20:51:25,388 INFO L444 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L444 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L444 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L444 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L444 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-23 20:51:25,389 INFO L447 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-23 20:51:25,390 INFO L444 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,391 INFO L444 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-23 20:51:25,392 INFO L444 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-23 20:51:25,393 INFO L444 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,394 INFO L440 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (not (= ~a16~0 6))) (.cse1 (= ~a21~0 1)) (.cse2 (= ~a20~0 1)) (.cse0 (<= 14 ~a8~0)) (.cse5 (not (= 1 ~a7~0))) (.cse4 (<= ~a20~0 0))) (or (and .cse0 .cse1 .cse2 (= ~a16~0 5)) (<= ~a21~0 0) (and (= 13 ~a8~0) (= ~a16~0 4) (= ~a17~0 1) (= ~a12~0 8) .cse1 .cse2) (and .cse0 .cse3 .cse4) (and .cse3 .cse5 .cse4) (and .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse4))) [2019-11-23 20:51:25,394 INFO L444 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,394 INFO L444 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,394 INFO L444 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,394 INFO L444 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,394 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-23 20:51:25,394 INFO L444 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,395 INFO L444 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-23 20:51:25,396 INFO L444 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,397 INFO L444 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 20:51:25,398 INFO L444 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-23 20:51:25,399 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,400 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-23 20:51:25,401 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-23 20:51:25,402 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-23 20:51:25,402 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-23 20:51:25,402 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 563) no Hoare annotation was computed. [2019-11-23 20:51:25,402 INFO L444 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-23 20:51:25,402 INFO L444 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-23 20:51:25,402 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-23 20:51:25,402 INFO L444 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-23 20:51:25,403 INFO L444 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-23 20:51:25,404 INFO L444 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-23 20:51:25,404 INFO L444 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-23 20:51:25,404 INFO L444 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-23 20:51:25,404 INFO L444 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-23 20:51:25,404 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-23 20:51:25,404 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-23 20:51:25,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:51:25 BoogieIcfgContainer [2019-11-23 20:51:25,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 20:51:25,427 INFO L168 Benchmark]: Toolchain (without parser) took 14150.96 ms. Allocated memory was 137.9 MB in the beginning and 523.2 MB in the end (delta: 385.4 MB). Free memory was 101.2 MB in the beginning and 395.8 MB in the end (delta: -294.6 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. [2019-11-23 20:51:25,427 INFO L168 Benchmark]: CDTParser took 1.71 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 20:51:25,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.51 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 160.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-11-23 20:51:25,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.32 ms. Allocated memory is still 201.3 MB. Free memory was 160.4 MB in the beginning and 154.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2019-11-23 20:51:25,430 INFO L168 Benchmark]: Boogie Preprocessor took 59.47 ms. Allocated memory is still 201.3 MB. Free memory was 154.2 MB in the beginning and 149.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-11-23 20:51:25,431 INFO L168 Benchmark]: RCFGBuilder took 1272.43 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 149.4 MB in the beginning and 159.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2019-11-23 20:51:25,432 INFO L168 Benchmark]: TraceAbstraction took 11988.78 ms. Allocated memory was 233.8 MB in the beginning and 523.2 MB in the end (delta: 289.4 MB). Free memory was 159.3 MB in the beginning and 395.8 MB in the end (delta: -236.5 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2019-11-23 20:51:25,436 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.71 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.51 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 160.4 MB in the end (delta: -59.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 81.32 ms. Allocated memory is still 201.3 MB. Free memory was 160.4 MB in the beginning and 154.2 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.47 ms. Allocated memory is still 201.3 MB. Free memory was 154.2 MB in the beginning and 149.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1272.43 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 149.4 MB in the beginning and 159.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11988.78 ms. Allocated memory was 233.8 MB in the beginning and 523.2 MB in the end (delta: 289.4 MB). Free memory was 159.3 MB in the beginning and 395.8 MB in the end (delta: -236.5 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 563]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((14 <= a8 && a21 == 1) && a20 == 1) && a16 == 5) || a21 <= 0) || (((((13 == a8 && a16 == 4) && a17 == 1) && a12 == 8) && a21 == 1) && a20 == 1)) || ((14 <= a8 && !(a16 == 6)) && a20 <= 0)) || ((!(a16 == 6) && !(1 == a7)) && a20 <= 0)) || ((!(1 == a7) && a21 == 1) && a20 == 1)) || ((14 <= a8 && !(1 == a7)) && a20 <= 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((14 <= a8 && a21 == 1) && a20 == 1) && a16 == 5) || a21 <= 0) || (((((13 == a8 && a16 == 4) && a17 == 1) && a12 == 8) && a21 == 1) && a20 == 1)) || ((14 <= a8 && !(a16 == 6)) && a20 <= 0)) || ((!(a16 == 6) && !(1 == a7)) && a20 <= 0)) || ((!(1 == a7) && a21 == 1) && a20 == 1)) || ((14 <= a8 && !(1 == a7)) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 11.8s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 844 SDtfs, 1553 SDslu, 95 SDs, 0 SdLazy, 4356 SolverSat, 617 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 734 GetRequests, 690 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2813occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1310 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 163 HoareAnnotationTreeSize, 3 FomulaSimplifications, 903 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2403 NumberOfCodeBlocks, 2403 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2390 ConstructedInterpolants, 0 QuantifiedInterpolants, 1876072 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1171 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 1262/1357 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...