/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 00:03:20,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 00:03:20,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 00:03:20,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 00:03:20,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 00:03:20,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 00:03:20,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 00:03:20,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 00:03:20,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 00:03:20,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 00:03:20,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 00:03:20,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 00:03:20,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 00:03:20,191 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 00:03:20,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 00:03:20,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 00:03:20,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 00:03:20,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 00:03:20,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 00:03:20,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 00:03:20,195 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 00:03:20,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 00:03:20,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 00:03:20,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 00:03:20,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 00:03:20,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 00:03:20,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 00:03:20,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 00:03:20,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 00:03:20,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 00:03:20,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 00:03:20,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 00:03:20,198 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 00:03:20,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 00:03:20,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 00:03:20,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 00:03:20,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 00:03:20,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 00:03:20,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 00:03:20,493 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 00:03:20,494 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 00:03:20,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label55.c [2022-01-10 00:03:20,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d56ae75/d081d2e951084cd8a844c941aa3cb277/FLAG3650d126b [2022-01-10 00:03:21,127 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 00:03:21,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label55.c [2022-01-10 00:03:21,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d56ae75/d081d2e951084cd8a844c941aa3cb277/FLAG3650d126b [2022-01-10 00:03:21,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d56ae75/d081d2e951084cd8a844c941aa3cb277 [2022-01-10 00:03:21,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 00:03:21,402 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 00:03:21,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 00:03:21,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 00:03:21,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 00:03:21,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:03:21" (1/1) ... [2022-01-10 00:03:21,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28424937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:21, skipping insertion in model container [2022-01-10 00:03:21,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:03:21" (1/1) ... [2022-01-10 00:03:21,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 00:03:21,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 00:03:21,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label55.c[6546,6559] [2022-01-10 00:03:21,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 00:03:21,943 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 00:03:21,982 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label55.c[6546,6559] [2022-01-10 00:03:22,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 00:03:22,116 INFO L208 MainTranslator]: Completed translation [2022-01-10 00:03:22,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22 WrapperNode [2022-01-10 00:03:22,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 00:03:22,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 00:03:22,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 00:03:22,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 00:03:22,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,261 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2022-01-10 00:03:22,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 00:03:22,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 00:03:22,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 00:03:22,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 00:03:22,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 00:03:22,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 00:03:22,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 00:03:22,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 00:03:22,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (1/1) ... [2022-01-10 00:03:22,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 00:03:22,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 00:03:22,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 00:03:22,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 00:03:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 00:03:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 00:03:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 00:03:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 00:03:22,525 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 00:03:22,527 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 00:03:24,035 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 00:03:24,045 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 00:03:24,045 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 00:03:24,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:24 BoogieIcfgContainer [2022-01-10 00:03:24,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 00:03:24,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 00:03:24,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 00:03:24,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 00:03:24,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:03:21" (1/3) ... [2022-01-10 00:03:24,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60554d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:24, skipping insertion in model container [2022-01-10 00:03:24,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:03:22" (2/3) ... [2022-01-10 00:03:24,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60554d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:24, skipping insertion in model container [2022-01-10 00:03:24,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:24" (3/3) ... [2022-01-10 00:03:24,070 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label55.c [2022-01-10 00:03:24,075 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 00:03:24,075 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 00:03:24,121 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 00:03:24,129 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 00:03:24,129 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 00:03:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 00:03:24,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:24,163 INFO L514 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] [2022-01-10 00:03:24,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:24,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:24,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2022-01-10 00:03:24,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:24,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643187426] [2022-01-10 00:03:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:24,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:24,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:24,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:24,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643187426] [2022-01-10 00:03:24,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643187426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:24,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:24,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 00:03:24,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513842081] [2022-01-10 00:03:24,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:24,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:24,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:24,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:24,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:24,512 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:25,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:25,540 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2022-01-10 00:03:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:25,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 00:03:25,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:25,561 INFO L225 Difference]: With dead ends: 776 [2022-01-10 00:03:25,561 INFO L226 Difference]: Without dead ends: 413 [2022-01-10 00:03:25,565 INFO L932 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 [2022-01-10 00:03:25,571 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 182 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:25,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 00:03:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-01-10 00:03:25,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2022-01-10 00:03:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2022-01-10 00:03:25,630 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 45 [2022-01-10 00:03:25,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:25,631 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2022-01-10 00:03:25,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2022-01-10 00:03:25,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 00:03:25,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:25,634 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:25,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 00:03:25,635 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:25,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:25,635 INFO L85 PathProgramCache]: Analyzing trace with hash -954308976, now seen corresponding path program 1 times [2022-01-10 00:03:25,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:25,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819122428] [2022-01-10 00:03:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:25,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:25,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:25,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819122428] [2022-01-10 00:03:25,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819122428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:25,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:25,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 00:03:25,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556970389] [2022-01-10 00:03:25,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:25,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:25,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:25,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:25,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:25,728 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:26,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:26,600 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2022-01-10 00:03:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:26,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 00:03:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:26,605 INFO L225 Difference]: With dead ends: 1209 [2022-01-10 00:03:26,605 INFO L226 Difference]: Without dead ends: 800 [2022-01-10 00:03:26,607 INFO L932 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 [2022-01-10 00:03:26,608 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:26,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 120 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 00:03:26,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-01-10 00:03:26,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2022-01-10 00:03:26,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2022-01-10 00:03:26,647 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 113 [2022-01-10 00:03:26,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:26,648 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2022-01-10 00:03:26,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:26,648 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2022-01-10 00:03:26,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 00:03:26,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:26,652 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:26,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 00:03:26,652 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:26,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash 975979568, now seen corresponding path program 1 times [2022-01-10 00:03:26,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:26,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155234196] [2022-01-10 00:03:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:26,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:26,741 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:26,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:26,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155234196] [2022-01-10 00:03:26,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155234196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:26,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:26,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 00:03:26,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886825556] [2022-01-10 00:03:26,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:26,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:26,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:26,744 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:27,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:27,421 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2022-01-10 00:03:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:27,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 00:03:27,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:27,426 INFO L225 Difference]: With dead ends: 1942 [2022-01-10 00:03:27,426 INFO L226 Difference]: Without dead ends: 1157 [2022-01-10 00:03:27,427 INFO L932 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 [2022-01-10 00:03:27,430 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:27,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 00:03:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2022-01-10 00:03:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2022-01-10 00:03:27,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2022-01-10 00:03:27,467 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 114 [2022-01-10 00:03:27,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:27,467 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2022-01-10 00:03:27,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2022-01-10 00:03:27,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-10 00:03:27,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:27,472 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:27,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 00:03:27,472 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:27,473 INFO L85 PathProgramCache]: Analyzing trace with hash -103496756, now seen corresponding path program 1 times [2022-01-10 00:03:27,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:27,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986957947] [2022-01-10 00:03:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:27,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-01-10 00:03:27,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:27,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986957947] [2022-01-10 00:03:27,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986957947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:27,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:27,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 00:03:27,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780896956] [2022-01-10 00:03:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:27,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:27,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:27,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:27,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:27,616 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:28,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:28,389 INFO L93 Difference]: Finished difference Result 2502 states and 3339 transitions. [2022-01-10 00:03:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:28,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2022-01-10 00:03:28,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:28,396 INFO L225 Difference]: With dead ends: 2502 [2022-01-10 00:03:28,396 INFO L226 Difference]: Without dead ends: 1532 [2022-01-10 00:03:28,398 INFO L932 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 [2022-01-10 00:03:28,399 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 108 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:28,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 00:03:28,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2022-01-10 00:03:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2022-01-10 00:03:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.2619203135205748) internal successors, (1932), 1531 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:28,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1932 transitions. [2022-01-10 00:03:28,430 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1932 transitions. Word has length 157 [2022-01-10 00:03:28,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:28,431 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 1932 transitions. [2022-01-10 00:03:28,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1932 transitions. [2022-01-10 00:03:28,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-10 00:03:28,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:28,434 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:28,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 00:03:28,434 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:28,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1015853899, now seen corresponding path program 1 times [2022-01-10 00:03:28,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:28,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219177566] [2022-01-10 00:03:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:28,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:28,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:28,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219177566] [2022-01-10 00:03:28,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219177566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:28,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:28,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:28,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334042196] [2022-01-10 00:03:28,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:28,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:28,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:28,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:28,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:28,526 INFO L87 Difference]: Start difference. First operand 1532 states and 1932 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:29,231 INFO L93 Difference]: Finished difference Result 3644 states and 4738 transitions. [2022-01-10 00:03:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:29,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2022-01-10 00:03:29,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:29,241 INFO L225 Difference]: With dead ends: 3644 [2022-01-10 00:03:29,241 INFO L226 Difference]: Without dead ends: 2298 [2022-01-10 00:03:29,244 INFO L932 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 [2022-01-10 00:03:29,245 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 190 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:29,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 322 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 00:03:29,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2022-01-10 00:03:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2295. [2022-01-10 00:03:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2294 states have (on average 1.2654751525719268) internal successors, (2903), 2294 states have internal predecessors, (2903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 2903 transitions. [2022-01-10 00:03:29,292 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 2903 transitions. Word has length 172 [2022-01-10 00:03:29,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:29,293 INFO L470 AbstractCegarLoop]: Abstraction has 2295 states and 2903 transitions. [2022-01-10 00:03:29,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 2903 transitions. [2022-01-10 00:03:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-01-10 00:03:29,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:29,297 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-01-10 00:03:29,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 00:03:29,298 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:29,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:29,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1543850387, now seen corresponding path program 1 times [2022-01-10 00:03:29,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:29,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098419428] [2022-01-10 00:03:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:29,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:29,411 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:29,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:29,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098419428] [2022-01-10 00:03:29,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098419428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:29,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:29,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:29,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863507932] [2022-01-10 00:03:29,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:29,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:29,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:29,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:29,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:29,414 INFO L87 Difference]: Start difference. First operand 2295 states and 2903 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:30,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:30,101 INFO L93 Difference]: Finished difference Result 5528 states and 7095 transitions. [2022-01-10 00:03:30,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:30,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2022-01-10 00:03:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:30,114 INFO L225 Difference]: With dead ends: 5528 [2022-01-10 00:03:30,114 INFO L226 Difference]: Without dead ends: 3419 [2022-01-10 00:03:30,118 INFO L932 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 [2022-01-10 00:03:30,119 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 136 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:30,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 340 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 00:03:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2022-01-10 00:03:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3218. [2022-01-10 00:03:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3217 states have (on average 1.2377991917935964) internal successors, (3982), 3217 states have internal predecessors, (3982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:30,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 3982 transitions. [2022-01-10 00:03:30,188 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 3982 transitions. Word has length 225 [2022-01-10 00:03:30,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:30,189 INFO L470 AbstractCegarLoop]: Abstraction has 3218 states and 3982 transitions. [2022-01-10 00:03:30,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:30,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 3982 transitions. [2022-01-10 00:03:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-01-10 00:03:30,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:30,192 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-01-10 00:03:30,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 00:03:30,193 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:30,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:30,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1109508493, now seen corresponding path program 1 times [2022-01-10 00:03:30,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:30,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950225931] [2022-01-10 00:03:30,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:30,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 00:03:30,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:30,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950225931] [2022-01-10 00:03:30,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950225931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:30,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:30,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:30,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130425603] [2022-01-10 00:03:30,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:30,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:30,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:30,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:30,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:30,293 INFO L87 Difference]: Start difference. First operand 3218 states and 3982 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:30,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:30,937 INFO L93 Difference]: Finished difference Result 7371 states and 9143 transitions. [2022-01-10 00:03:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:30,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-01-10 00:03:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:30,952 INFO L225 Difference]: With dead ends: 7371 [2022-01-10 00:03:30,952 INFO L226 Difference]: Without dead ends: 4155 [2022-01-10 00:03:30,957 INFO L932 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 [2022-01-10 00:03:30,958 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 157 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:30,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 345 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 00:03:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-01-10 00:03:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 4138. [2022-01-10 00:03:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4138 states, 4137 states have (on average 1.2211747643219724) internal successors, (5052), 4137 states have internal predecessors, (5052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4138 states to 4138 states and 5052 transitions. [2022-01-10 00:03:31,032 INFO L78 Accepts]: Start accepts. Automaton has 4138 states and 5052 transitions. Word has length 226 [2022-01-10 00:03:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:31,032 INFO L470 AbstractCegarLoop]: Abstraction has 4138 states and 5052 transitions. [2022-01-10 00:03:31,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4138 states and 5052 transitions. [2022-01-10 00:03:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-01-10 00:03:31,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:31,036 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-01-10 00:03:31,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 00:03:31,036 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:31,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:31,037 INFO L85 PathProgramCache]: Analyzing trace with hash 616043864, now seen corresponding path program 1 times [2022-01-10 00:03:31,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:31,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005266551] [2022-01-10 00:03:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:31,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-01-10 00:03:31,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:31,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005266551] [2022-01-10 00:03:31,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005266551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:31,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:31,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:31,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142895331] [2022-01-10 00:03:31,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:31,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:31,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:31,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:31,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:31,137 INFO L87 Difference]: Start difference. First operand 4138 states and 5052 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:31,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:31,880 INFO L93 Difference]: Finished difference Result 9207 states and 11353 transitions. [2022-01-10 00:03:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:31,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-01-10 00:03:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:31,899 INFO L225 Difference]: With dead ends: 9207 [2022-01-10 00:03:31,899 INFO L226 Difference]: Without dead ends: 5071 [2022-01-10 00:03:31,906 INFO L932 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 [2022-01-10 00:03:31,906 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 152 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:31,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 379 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 00:03:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2022-01-10 00:03:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 4874. [2022-01-10 00:03:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4874 states, 4873 states have (on average 1.2087010055407346) internal successors, (5890), 4873 states have internal predecessors, (5890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 5890 transitions. [2022-01-10 00:03:31,994 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 5890 transitions. Word has length 227 [2022-01-10 00:03:31,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:31,995 INFO L470 AbstractCegarLoop]: Abstraction has 4874 states and 5890 transitions. [2022-01-10 00:03:31,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 5890 transitions. [2022-01-10 00:03:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-01-10 00:03:32,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:32,027 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:32,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 00:03:32,028 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:32,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash 213296906, now seen corresponding path program 1 times [2022-01-10 00:03:32,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:32,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657417445] [2022-01-10 00:03:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:32,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:32,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:32,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657417445] [2022-01-10 00:03:32,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657417445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:32,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:32,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 00:03:32,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039979671] [2022-01-10 00:03:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:32,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:32,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:32,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:32,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 00:03:32,141 INFO L87 Difference]: Start difference. First operand 4874 states and 5890 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:33,419 INFO L93 Difference]: Finished difference Result 15870 states and 19335 transitions. [2022-01-10 00:03:33,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:33,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2022-01-10 00:03:33,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:33,458 INFO L225 Difference]: With dead ends: 15870 [2022-01-10 00:03:33,458 INFO L226 Difference]: Without dead ends: 10998 [2022-01-10 00:03:33,468 INFO L932 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 [2022-01-10 00:03:33,468 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 287 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:33,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 207 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 00:03:33,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10998 states. [2022-01-10 00:03:33,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10998 to 8953. [2022-01-10 00:03:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8953 states, 8952 states have (on average 1.1907953529937445) internal successors, (10660), 8952 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:33,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8953 states to 8953 states and 10660 transitions. [2022-01-10 00:03:33,705 INFO L78 Accepts]: Start accepts. Automaton has 8953 states and 10660 transitions. Word has length 247 [2022-01-10 00:03:33,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:33,706 INFO L470 AbstractCegarLoop]: Abstraction has 8953 states and 10660 transitions. [2022-01-10 00:03:33,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:33,707 INFO L276 IsEmpty]: Start isEmpty. Operand 8953 states and 10660 transitions. [2022-01-10 00:03:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-01-10 00:03:33,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:33,717 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:33,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 00:03:33,717 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash 389049443, now seen corresponding path program 1 times [2022-01-10 00:03:33,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:33,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926096898] [2022-01-10 00:03:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:33,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:33,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:33,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926096898] [2022-01-10 00:03:33,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926096898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:33,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:33,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 00:03:33,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080473366] [2022-01-10 00:03:33,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:33,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:33,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:33,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:33,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 00:03:33,883 INFO L87 Difference]: Start difference. First operand 8953 states and 10660 transitions. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:35,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:35,171 INFO L93 Difference]: Finished difference Result 22713 states and 27383 transitions. [2022-01-10 00:03:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:35,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2022-01-10 00:03:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:35,201 INFO L225 Difference]: With dead ends: 22713 [2022-01-10 00:03:35,202 INFO L226 Difference]: Without dead ends: 13762 [2022-01-10 00:03:35,214 INFO L932 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 [2022-01-10 00:03:35,215 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 300 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:35,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 120 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 00:03:35,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13762 states. [2022-01-10 00:03:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13762 to 13378. [2022-01-10 00:03:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 13377 states have (on average 1.1920460491889064) internal successors, (15946), 13377 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 15946 transitions. [2022-01-10 00:03:35,496 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 15946 transitions. Word has length 257 [2022-01-10 00:03:35,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:35,496 INFO L470 AbstractCegarLoop]: Abstraction has 13378 states and 15946 transitions. [2022-01-10 00:03:35,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:35,497 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 15946 transitions. [2022-01-10 00:03:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-01-10 00:03:35,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:35,503 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 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] [2022-01-10 00:03:35,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 00:03:35,503 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:35,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:35,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1785532527, now seen corresponding path program 1 times [2022-01-10 00:03:35,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:35,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782794198] [2022-01-10 00:03:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:35,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 23 proven. 62 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-01-10 00:03:35,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:35,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782794198] [2022-01-10 00:03:35,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782794198] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 00:03:35,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228213462] [2022-01-10 00:03:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:35,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 00:03:35,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 00:03:35,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 00:03:35,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 00:03:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:35,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 00:03:35,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 00:03:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-01-10 00:03:36,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 00:03:36,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228213462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:36,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 00:03:36,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-01-10 00:03:36,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361804695] [2022-01-10 00:03:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:36,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:36,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 00:03:36,242 INFO L87 Difference]: Start difference. First operand 13378 states and 15946 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:37,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:37,098 INFO L93 Difference]: Finished difference Result 32089 states and 38433 transitions. [2022-01-10 00:03:37,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:37,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2022-01-10 00:03:37,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:37,134 INFO L225 Difference]: With dead ends: 32089 [2022-01-10 00:03:37,134 INFO L226 Difference]: Without dead ends: 18713 [2022-01-10 00:03:37,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 00:03:37,150 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 155 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:37,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 375 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 00:03:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18713 states. [2022-01-10 00:03:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18713 to 17789. [2022-01-10 00:03:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17789 states, 17788 states have (on average 1.1721385203507984) internal successors, (20850), 17788 states have internal predecessors, (20850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 20850 transitions. [2022-01-10 00:03:37,413 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 20850 transitions. Word has length 259 [2022-01-10 00:03:37,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:37,413 INFO L470 AbstractCegarLoop]: Abstraction has 17789 states and 20850 transitions. [2022-01-10 00:03:37,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 20850 transitions. [2022-01-10 00:03:37,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-01-10 00:03:37,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:37,420 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:37,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 00:03:37,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-10 00:03:37,640 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:37,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:37,640 INFO L85 PathProgramCache]: Analyzing trace with hash -909161094, now seen corresponding path program 1 times [2022-01-10 00:03:37,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:37,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168276984] [2022-01-10 00:03:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:37,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-01-10 00:03:37,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:37,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168276984] [2022-01-10 00:03:37,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168276984] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:37,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:37,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:37,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283081868] [2022-01-10 00:03:37,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:37,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:37,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:37,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:37,759 INFO L87 Difference]: Start difference. First operand 17789 states and 20850 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:38,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:38,649 INFO L93 Difference]: Finished difference Result 35586 states and 41718 transitions. [2022-01-10 00:03:38,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:38,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2022-01-10 00:03:38,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:38,684 INFO L225 Difference]: With dead ends: 35586 [2022-01-10 00:03:38,684 INFO L226 Difference]: Without dead ends: 17799 [2022-01-10 00:03:38,703 INFO L932 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 [2022-01-10 00:03:38,704 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 155 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:38,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 377 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 00:03:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17799 states. [2022-01-10 00:03:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17799 to 17788. [2022-01-10 00:03:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17788 states, 17787 states have (on average 1.1440377804014168) internal successors, (20349), 17787 states have internal predecessors, (20349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17788 states to 17788 states and 20349 transitions. [2022-01-10 00:03:38,956 INFO L78 Accepts]: Start accepts. Automaton has 17788 states and 20349 transitions. Word has length 264 [2022-01-10 00:03:38,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:38,957 INFO L470 AbstractCegarLoop]: Abstraction has 17788 states and 20349 transitions. [2022-01-10 00:03:38,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 17788 states and 20349 transitions. [2022-01-10 00:03:38,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-01-10 00:03:38,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:38,964 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 00:03:38,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 00:03:38,965 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:38,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1936772335, now seen corresponding path program 1 times [2022-01-10 00:03:38,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:38,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427714313] [2022-01-10 00:03:38,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:38,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 141 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:39,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427714313] [2022-01-10 00:03:39,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427714313] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 00:03:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484475412] [2022-01-10 00:03:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:39,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 00:03:39,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 00:03:39,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 00:03:39,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 00:03:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:39,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 00:03:39,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 00:03:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 00:03:40,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 00:03:40,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484475412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:40,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 00:03:40,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-01-10 00:03:40,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696222240] [2022-01-10 00:03:40,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:40,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:40,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:40,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:40,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 00:03:40,115 INFO L87 Difference]: Start difference. First operand 17788 states and 20349 transitions. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:41,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:41,004 INFO L93 Difference]: Finished difference Result 35578 states and 40702 transitions. [2022-01-10 00:03:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:41,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2022-01-10 00:03:41,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:41,027 INFO L225 Difference]: With dead ends: 35578 [2022-01-10 00:03:41,027 INFO L226 Difference]: Without dead ends: 17792 [2022-01-10 00:03:41,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 00:03:41,042 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 181 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:41,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 161 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 00:03:41,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17792 states. [2022-01-10 00:03:41,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17792 to 17788. [2022-01-10 00:03:41,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17788 states, 17787 states have (on average 1.1430258053634677) internal successors, (20331), 17787 states have internal predecessors, (20331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:41,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17788 states to 17788 states and 20331 transitions. [2022-01-10 00:03:41,274 INFO L78 Accepts]: Start accepts. Automaton has 17788 states and 20331 transitions. Word has length 278 [2022-01-10 00:03:41,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:41,275 INFO L470 AbstractCegarLoop]: Abstraction has 17788 states and 20331 transitions. [2022-01-10 00:03:41,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:41,275 INFO L276 IsEmpty]: Start isEmpty. Operand 17788 states and 20331 transitions. [2022-01-10 00:03:41,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-01-10 00:03:41,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:41,283 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 00:03:41,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 00:03:41,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-10 00:03:41,500 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:41,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:41,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1415119139, now seen corresponding path program 1 times [2022-01-10 00:03:41,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:41,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369270584] [2022-01-10 00:03:41,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:41,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-01-10 00:03:41,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:41,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369270584] [2022-01-10 00:03:41,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369270584] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:41,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:41,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 00:03:41,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744784806] [2022-01-10 00:03:41,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:41,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:41,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:41,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:41,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:41,596 INFO L87 Difference]: Start difference. First operand 17788 states and 20331 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:42,201 INFO L93 Difference]: Finished difference Result 33137 states and 37923 transitions. [2022-01-10 00:03:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:42,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2022-01-10 00:03:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:42,285 INFO L225 Difference]: With dead ends: 33137 [2022-01-10 00:03:42,285 INFO L226 Difference]: Without dead ends: 15351 [2022-01-10 00:03:42,292 INFO L932 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 [2022-01-10 00:03:42,292 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 124 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:42,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 149 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 00:03:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15351 states. [2022-01-10 00:03:42,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15351 to 10741. [2022-01-10 00:03:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10741 states, 10740 states have (on average 1.116294227188082) internal successors, (11989), 10740 states have internal predecessors, (11989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:42,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10741 states to 10741 states and 11989 transitions. [2022-01-10 00:03:42,464 INFO L78 Accepts]: Start accepts. Automaton has 10741 states and 11989 transitions. Word has length 304 [2022-01-10 00:03:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:42,465 INFO L470 AbstractCegarLoop]: Abstraction has 10741 states and 11989 transitions. [2022-01-10 00:03:42,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 10741 states and 11989 transitions. [2022-01-10 00:03:42,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-01-10 00:03:42,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:42,471 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 00:03:42,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 00:03:42,472 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:42,472 INFO L85 PathProgramCache]: Analyzing trace with hash 63979177, now seen corresponding path program 1 times [2022-01-10 00:03:42,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:42,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328651573] [2022-01-10 00:03:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:42,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-01-10 00:03:42,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:42,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328651573] [2022-01-10 00:03:42,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328651573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:42,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:42,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:42,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078224669] [2022-01-10 00:03:42,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:42,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:42,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:42,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:42,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 00:03:42,576 INFO L87 Difference]: Start difference. First operand 10741 states and 11989 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:43,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:43,188 INFO L93 Difference]: Finished difference Result 23503 states and 26240 transitions. [2022-01-10 00:03:43,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:43,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2022-01-10 00:03:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:43,206 INFO L225 Difference]: With dead ends: 23503 [2022-01-10 00:03:43,206 INFO L226 Difference]: Without dead ends: 12764 [2022-01-10 00:03:43,215 INFO L932 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 [2022-01-10 00:03:43,216 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 176 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:43,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 144 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 00:03:43,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12764 states. [2022-01-10 00:03:43,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12764 to 10924. [2022-01-10 00:03:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10924 states, 10923 states have (on average 1.1170008239494644) internal successors, (12201), 10923 states have internal predecessors, (12201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10924 states to 10924 states and 12201 transitions. [2022-01-10 00:03:43,406 INFO L78 Accepts]: Start accepts. Automaton has 10924 states and 12201 transitions. Word has length 312 [2022-01-10 00:03:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:43,407 INFO L470 AbstractCegarLoop]: Abstraction has 10924 states and 12201 transitions. [2022-01-10 00:03:43,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:43,407 INFO L276 IsEmpty]: Start isEmpty. Operand 10924 states and 12201 transitions. [2022-01-10 00:03:43,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-01-10 00:03:43,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:43,414 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 00:03:43,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 00:03:43,415 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:43,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:43,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1564114315, now seen corresponding path program 1 times [2022-01-10 00:03:43,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:43,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787207486] [2022-01-10 00:03:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:43,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-01-10 00:03:43,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:43,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787207486] [2022-01-10 00:03:43,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787207486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:43,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:43,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 00:03:43,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512969752] [2022-01-10 00:03:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:43,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:43,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:43,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:43,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 00:03:43,543 INFO L87 Difference]: Start difference. First operand 10924 states and 12201 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:44,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:44,759 INFO L93 Difference]: Finished difference Result 27404 states and 30590 transitions. [2022-01-10 00:03:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:44,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 316 [2022-01-10 00:03:44,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:44,779 INFO L225 Difference]: With dead ends: 27404 [2022-01-10 00:03:44,779 INFO L226 Difference]: Without dead ends: 15741 [2022-01-10 00:03:44,789 INFO L932 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 [2022-01-10 00:03:44,790 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 295 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:44,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 399 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 00:03:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15741 states. [2022-01-10 00:03:44,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15741 to 12413. [2022-01-10 00:03:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12413 states, 12412 states have (on average 1.117386400257815) internal successors, (13869), 12412 states have internal predecessors, (13869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12413 states to 12413 states and 13869 transitions. [2022-01-10 00:03:44,986 INFO L78 Accepts]: Start accepts. Automaton has 12413 states and 13869 transitions. Word has length 316 [2022-01-10 00:03:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:44,986 INFO L470 AbstractCegarLoop]: Abstraction has 12413 states and 13869 transitions. [2022-01-10 00:03:44,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:44,987 INFO L276 IsEmpty]: Start isEmpty. Operand 12413 states and 13869 transitions. [2022-01-10 00:03:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-01-10 00:03:44,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:44,994 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 00:03:44,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 00:03:44,994 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1085023565, now seen corresponding path program 1 times [2022-01-10 00:03:44,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:44,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138557703] [2022-01-10 00:03:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:44,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:45,194 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 174 proven. 128 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-01-10 00:03:45,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:45,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138557703] [2022-01-10 00:03:45,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138557703] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 00:03:45,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500471359] [2022-01-10 00:03:45,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:45,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 00:03:45,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 00:03:45,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 00:03:45,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 00:03:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:45,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 00:03:45,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 00:03:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-01-10 00:03:46,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 00:03:46,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500471359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:46,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 00:03:46,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-01-10 00:03:46,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702865710] [2022-01-10 00:03:46,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:46,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:46,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:46,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:46,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 00:03:46,099 INFO L87 Difference]: Start difference. First operand 12413 states and 13869 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:46,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:46,831 INFO L93 Difference]: Finished difference Result 25010 states and 27928 transitions. [2022-01-10 00:03:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:46,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2022-01-10 00:03:46,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:46,844 INFO L225 Difference]: With dead ends: 25010 [2022-01-10 00:03:46,844 INFO L226 Difference]: Without dead ends: 12599 [2022-01-10 00:03:46,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 00:03:46,854 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 280 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:46,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 150 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 00:03:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12599 states. [2022-01-10 00:03:46,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12599 to 12413. [2022-01-10 00:03:46,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12413 states, 12412 states have (on average 1.116419593941347) internal successors, (13857), 12412 states have internal predecessors, (13857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12413 states to 12413 states and 13857 transitions. [2022-01-10 00:03:46,976 INFO L78 Accepts]: Start accepts. Automaton has 12413 states and 13857 transitions. Word has length 332 [2022-01-10 00:03:46,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:46,976 INFO L470 AbstractCegarLoop]: Abstraction has 12413 states and 13857 transitions. [2022-01-10 00:03:46,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 12413 states and 13857 transitions. [2022-01-10 00:03:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-01-10 00:03:46,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:46,983 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 00:03:47,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 00:03:47,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 00:03:47,204 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:47,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:47,204 INFO L85 PathProgramCache]: Analyzing trace with hash 474538808, now seen corresponding path program 1 times [2022-01-10 00:03:47,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:47,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239184583] [2022-01-10 00:03:47,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:47,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-01-10 00:03:47,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:47,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239184583] [2022-01-10 00:03:47,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239184583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:47,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:47,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 00:03:47,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085003262] [2022-01-10 00:03:47,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:47,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:47,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:47,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:47,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 00:03:47,342 INFO L87 Difference]: Start difference. First operand 12413 states and 13857 transitions. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:48,384 INFO L93 Difference]: Finished difference Result 29071 states and 32393 transitions. [2022-01-10 00:03:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 354 [2022-01-10 00:03:48,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:48,404 INFO L225 Difference]: With dead ends: 29071 [2022-01-10 00:03:48,404 INFO L226 Difference]: Without dead ends: 16103 [2022-01-10 00:03:48,414 INFO L932 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 [2022-01-10 00:03:48,415 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 289 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:48,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 368 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 00:03:48,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16103 states. [2022-01-10 00:03:48,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16103 to 10550. [2022-01-10 00:03:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10550 states, 10549 states have (on average 1.1117641482604985) internal successors, (11728), 10549 states have internal predecessors, (11728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10550 states to 10550 states and 11728 transitions. [2022-01-10 00:03:48,528 INFO L78 Accepts]: Start accepts. Automaton has 10550 states and 11728 transitions. Word has length 354 [2022-01-10 00:03:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:48,529 INFO L470 AbstractCegarLoop]: Abstraction has 10550 states and 11728 transitions. [2022-01-10 00:03:48,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10550 states and 11728 transitions. [2022-01-10 00:03:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-01-10 00:03:48,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:48,535 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 00:03:48,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 00:03:48,536 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1672122884, now seen corresponding path program 1 times [2022-01-10 00:03:48,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:48,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278756737] [2022-01-10 00:03:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:48,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:48,651 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-01-10 00:03:48,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:48,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278756737] [2022-01-10 00:03:48,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278756737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:48,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:48,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 00:03:48,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017601497] [2022-01-10 00:03:48,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:48,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:48,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:48,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:48,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 00:03:48,655 INFO L87 Difference]: Start difference. First operand 10550 states and 11728 transitions. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:49,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:49,511 INFO L93 Difference]: Finished difference Result 23312 states and 25815 transitions. [2022-01-10 00:03:49,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:49,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 367 [2022-01-10 00:03:49,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:49,524 INFO L225 Difference]: With dead ends: 23312 [2022-01-10 00:03:49,524 INFO L226 Difference]: Without dead ends: 12764 [2022-01-10 00:03:49,531 INFO L932 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 [2022-01-10 00:03:49,531 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 312 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:49,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 57 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 00:03:49,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12764 states. [2022-01-10 00:03:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12764 to 10177. [2022-01-10 00:03:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10177 states, 10176 states have (on average 1.1077044025157232) internal successors, (11272), 10176 states have internal predecessors, (11272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10177 states to 10177 states and 11272 transitions. [2022-01-10 00:03:49,628 INFO L78 Accepts]: Start accepts. Automaton has 10177 states and 11272 transitions. Word has length 367 [2022-01-10 00:03:49,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:49,629 INFO L470 AbstractCegarLoop]: Abstraction has 10177 states and 11272 transitions. [2022-01-10 00:03:49,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 10177 states and 11272 transitions. [2022-01-10 00:03:49,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-01-10 00:03:49,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:49,636 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-01-10 00:03:49,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 00:03:49,636 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:49,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 555394427, now seen corresponding path program 1 times [2022-01-10 00:03:49,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:49,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405486433] [2022-01-10 00:03:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:49,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-01-10 00:03:49,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:49,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405486433] [2022-01-10 00:03:49,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405486433] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:49,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:49,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:49,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363545824] [2022-01-10 00:03:49,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:49,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:49,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:49,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:49,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 00:03:49,737 INFO L87 Difference]: Start difference. First operand 10177 states and 11272 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:50,737 INFO L93 Difference]: Finished difference Result 27179 states and 30081 transitions. [2022-01-10 00:03:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:50,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2022-01-10 00:03:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:50,754 INFO L225 Difference]: With dead ends: 27179 [2022-01-10 00:03:50,754 INFO L226 Difference]: Without dead ends: 17004 [2022-01-10 00:03:50,761 INFO L932 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 [2022-01-10 00:03:50,763 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 202 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:50,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 71 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 00:03:50,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17004 states. [2022-01-10 00:03:50,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17004 to 15891. [2022-01-10 00:03:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15891 states, 15890 states have (on average 1.1056639395846444) internal successors, (17569), 15890 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15891 states to 15891 states and 17569 transitions. [2022-01-10 00:03:51,003 INFO L78 Accepts]: Start accepts. Automaton has 15891 states and 17569 transitions. Word has length 402 [2022-01-10 00:03:51,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:51,004 INFO L470 AbstractCegarLoop]: Abstraction has 15891 states and 17569 transitions. [2022-01-10 00:03:51,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 15891 states and 17569 transitions. [2022-01-10 00:03:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-01-10 00:03:51,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:51,030 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 00:03:51,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 00:03:51,030 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:51,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:51,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1873288126, now seen corresponding path program 1 times [2022-01-10 00:03:51,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:51,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109926759] [2022-01-10 00:03:51,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:51,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 675 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-01-10 00:03:51,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:51,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109926759] [2022-01-10 00:03:51,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109926759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:51,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 00:03:51,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 00:03:51,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747986235] [2022-01-10 00:03:51,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:51,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 00:03:51,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:51,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 00:03:51,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 00:03:51,267 INFO L87 Difference]: Start difference. First operand 15891 states and 17569 transitions. Second operand has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:52,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:52,135 INFO L93 Difference]: Finished difference Result 30497 states and 33716 transitions. [2022-01-10 00:03:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 00:03:52,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 547 [2022-01-10 00:03:52,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:52,152 INFO L225 Difference]: With dead ends: 30497 [2022-01-10 00:03:52,152 INFO L226 Difference]: Without dead ends: 17004 [2022-01-10 00:03:52,161 INFO L932 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 [2022-01-10 00:03:52,162 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 175 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:52,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 71 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 00:03:52,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17004 states. [2022-01-10 00:03:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17004 to 15707. [2022-01-10 00:03:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15707 states, 15706 states have (on average 1.1050553928434994) internal successors, (17356), 15706 states have internal predecessors, (17356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:52,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15707 states to 15707 states and 17356 transitions. [2022-01-10 00:03:52,321 INFO L78 Accepts]: Start accepts. Automaton has 15707 states and 17356 transitions. Word has length 547 [2022-01-10 00:03:52,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:52,322 INFO L470 AbstractCegarLoop]: Abstraction has 15707 states and 17356 transitions. [2022-01-10 00:03:52,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.5) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:52,322 INFO L276 IsEmpty]: Start isEmpty. Operand 15707 states and 17356 transitions. [2022-01-10 00:03:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-01-10 00:03:52,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 00:03:52,338 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 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] [2022-01-10 00:03:52,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 00:03:52,338 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 00:03:52,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 00:03:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1519719464, now seen corresponding path program 1 times [2022-01-10 00:03:52,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 00:03:52,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483257492] [2022-01-10 00:03:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:52,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 00:03:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 708 proven. 288 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-01-10 00:03:52,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 00:03:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483257492] [2022-01-10 00:03:52,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483257492] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 00:03:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825948405] [2022-01-10 00:03:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 00:03:52,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 00:03:52,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 00:03:52,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 00:03:52,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 00:03:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 00:03:52,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 00:03:52,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 00:03:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-01-10 00:03:53,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 00:03:53,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825948405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 00:03:53,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 00:03:53,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-01-10 00:03:53,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806280930] [2022-01-10 00:03:53,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 00:03:53,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 00:03:53,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 00:03:53,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 00:03:53,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-10 00:03:53,426 INFO L87 Difference]: Start difference. First operand 15707 states and 17356 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 00:03:53,969 INFO L93 Difference]: Finished difference Result 32511 states and 35885 transitions. [2022-01-10 00:03:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 00:03:53,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 561 [2022-01-10 00:03:53,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 00:03:53,972 INFO L225 Difference]: With dead ends: 32511 [2022-01-10 00:03:53,972 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 00:03:53,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-10 00:03:53,986 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 106 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 00:03:53,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 129 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 00:03:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 00:03:53,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 00:03:53,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 00:03:53,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 561 [2022-01-10 00:03:53,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 00:03:53,987 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 00:03:53,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 00:03:53,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 00:03:53,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 00:03:53,989 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 00:03:54,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 00:03:54,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 00:03:54,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 00:04:04,633 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2022-01-10 00:04:04,634 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-01-10 00:04:04,635 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,635 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,635 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,636 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse2 (<= ~a29~0 130)) (.cse1 (<= ~a25~0 10)) (.cse4 (= ~a25~0 12)) (.cse10 (<= ~a23~0 137)) (.cse8 (= ~a25~0 13)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse6 (<= ~a29~0 599999)) (.cse11 (= ~a25~0 9)) (.cse7 (= ~a4~0 1)) (.cse9 (<= ~a29~0 275)) (.cse0 (= ~a4~0 0)) (.cse5 (= ~a25~0 11)) (.cse12 (<= ~a23~0 262))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 (<= ~a29~0 220)) (and .cse5 .cse6 .cse7) (and .cse3 .cse5 .cse2) (and .cse8 .cse6 .cse7) (and .cse1 .cse6 .cse7 (not (<= ~a23~0 306))) (and .cse9 .cse4 .cse0) (and .cse8 .cse0 (<= (+ 35913 ~a29~0) 0) .cse10) (and .cse6 (or (and .cse3 (<= (+ ~a29~0 275824) 0) .cse11) (and .cse3 .cse1 .cse7))) (and .cse9 .cse1 .cse7) (and (<= ~a29~0 140) .cse0 .cse1 .cse12) (and .cse3 .cse0 .cse6 .cse11) (and .cse3 .cse0 .cse5 .cse6) (and .cse4 .cse6 .cse7) (and .cse5 .cse7 .cse10) (and .cse4 .cse0 .cse6 .cse10) (and .cse8 .cse3 .cse9 .cse0) (and .cse6 .cse11 .cse7) (and .cse9 .cse0 .cse5 .cse12))) [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,637 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,638 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,638 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,638 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2022-01-10 00:04:04,638 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2022-01-10 00:04:04,638 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2022-01-10 00:04:04,638 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2022-01-10 00:04:04,638 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,638 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2022-01-10 00:04:04,639 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse2 (<= ~a29~0 130)) (.cse1 (<= ~a25~0 10)) (.cse4 (= ~a25~0 12)) (.cse10 (<= ~a23~0 137)) (.cse8 (= ~a25~0 13)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse6 (<= ~a29~0 599999)) (.cse11 (= ~a25~0 9)) (.cse7 (= ~a4~0 1)) (.cse9 (<= ~a29~0 275)) (.cse0 (= ~a4~0 0)) (.cse5 (= ~a25~0 11)) (.cse12 (<= ~a23~0 262))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 (<= ~a29~0 220)) (and .cse5 .cse6 .cse7) (and .cse3 .cse5 .cse2) (and .cse8 .cse6 .cse7) (and .cse1 .cse6 .cse7 (not (<= ~a23~0 306))) (and .cse9 .cse4 .cse0) (and .cse8 .cse0 (<= (+ 35913 ~a29~0) 0) .cse10) (and .cse6 (or (and .cse3 (<= (+ ~a29~0 275824) 0) .cse11) (and .cse3 .cse1 .cse7))) (and .cse9 .cse1 .cse7) (and (<= ~a29~0 140) .cse0 .cse1 .cse12) (and .cse3 .cse0 .cse6 .cse11) (and .cse3 .cse0 .cse5 .cse6) (and .cse4 .cse6 .cse7) (and .cse5 .cse7 .cse10) (and .cse4 .cse0 .cse6 .cse10) (and .cse8 .cse3 .cse9 .cse0) (and .cse6 .cse11 .cse7) (and .cse9 .cse0 .cse5 .cse12))) [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,640 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,641 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2022-01-10 00:04:04,642 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,643 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2022-01-10 00:04:04,644 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2022-01-10 00:04:04,645 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2022-01-10 00:04:04,646 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2022-01-10 00:04:04,647 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,648 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,649 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,649 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,649 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,650 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-01-10 00:04:04,651 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2022-01-10 00:04:04,653 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 00:04:04,654 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 00:04:04,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:04:04 BoogieIcfgContainer [2022-01-10 00:04:04,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 00:04:04,670 INFO L158 Benchmark]: Toolchain (without parser) took 43267.42ms. Allocated memory was 181.4MB in the beginning and 880.8MB in the end (delta: 699.4MB). Free memory was 123.4MB in the beginning and 616.1MB in the end (delta: -492.7MB). Peak memory consumption was 639.9MB. Max. memory is 8.0GB. [2022-01-10 00:04:04,670 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 181.4MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 00:04:04,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 714.31ms. Allocated memory was 181.4MB in the beginning and 273.7MB in the end (delta: 92.3MB). Free memory was 123.2MB in the beginning and 215.0MB in the end (delta: -91.8MB). Peak memory consumption was 18.8MB. Max. memory is 8.0GB. [2022-01-10 00:04:04,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.18ms. Allocated memory is still 273.7MB. Free memory was 215.0MB in the beginning and 198.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-01-10 00:04:04,670 INFO L158 Benchmark]: Boogie Preprocessor took 115.33ms. Allocated memory is still 273.7MB. Free memory was 198.2MB in the beginning and 188.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 00:04:04,671 INFO L158 Benchmark]: RCFGBuilder took 1680.90ms. Allocated memory is still 273.7MB. Free memory was 188.8MB in the beginning and 219.1MB in the end (delta: -30.3MB). Peak memory consumption was 124.9MB. Max. memory is 8.0GB. [2022-01-10 00:04:04,671 INFO L158 Benchmark]: TraceAbstraction took 40607.64ms. Allocated memory was 273.7MB in the beginning and 880.8MB in the end (delta: 607.1MB). Free memory was 218.6MB in the beginning and 616.1MB in the end (delta: -397.6MB). Peak memory consumption was 642.2MB. Max. memory is 8.0GB. [2022-01-10 00:04:04,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 181.4MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 714.31ms. Allocated memory was 181.4MB in the beginning and 273.7MB in the end (delta: 92.3MB). Free memory was 123.2MB in the beginning and 215.0MB in the end (delta: -91.8MB). Peak memory consumption was 18.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 143.18ms. Allocated memory is still 273.7MB. Free memory was 215.0MB in the beginning and 198.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 115.33ms. Allocated memory is still 273.7MB. Free memory was 198.2MB in the beginning and 188.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1680.90ms. Allocated memory is still 273.7MB. Free memory was 188.8MB in the beginning and 219.1MB in the end (delta: -30.3MB). Peak memory consumption was 124.9MB. Max. memory is 8.0GB. * TraceAbstraction took 40607.64ms. Allocated memory was 273.7MB in the beginning and 880.8MB in the end (delta: 607.1MB). Free memory was 218.6MB in the beginning and 616.1MB in the end (delta: -397.6MB). Peak memory consumption was 642.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 151]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.5s, OverallIterations: 22, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4226 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4226 mSDsluCounter, 4826 SdHoareTripleChecker+Invalid, 13.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 656 mSDsCounter, 2140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16693 IncrementalHoareTripleChecker+Invalid, 18833 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2140 mSolverCounterUnsat, 4170 mSDtfsCounter, 16693 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1500 GetRequests, 1454 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17789occurred in iteration=11, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 22 MinimizatonAttempts, 24316 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 205 NumberOfFragments, 499 HoareAnnotationTreeSize, 3 FomulaSimplifications, 38142 FormulaSimplificationTreeSizeReduction, 7.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 68660 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 7509 NumberOfCodeBlocks, 7509 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 7483 ConstructedInterpolants, 0 QuantifiedInterpolants, 30631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2026 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 7413/7924 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((a4 == 0 && a25 <= 10) && a29 <= 130) || ((a23 + 43 <= 0 && a25 == 12) && a29 <= 220)) || ((a25 == 11 && a29 <= 599999) && a4 == 1)) || ((a23 + 43 <= 0 && a25 == 11) && a29 <= 130)) || ((a25 == 13 && a29 <= 599999) && a4 == 1)) || (((a25 <= 10 && a29 <= 599999) && a4 == 1) && !(a23 <= 306))) || ((a29 <= 275 && a25 == 12) && a4 == 0)) || (((a25 == 13 && a4 == 0) && 35913 + a29 <= 0) && a23 <= 137)) || (a29 <= 599999 && (((a23 + 43 <= 0 && a29 + 275824 <= 0) && a25 == 9) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)))) || ((a29 <= 275 && a25 <= 10) && a4 == 1)) || (((a29 <= 140 && a4 == 0) && a25 <= 10) && a23 <= 262)) || (((a23 + 43 <= 0 && a4 == 0) && a29 <= 599999) && a25 == 9)) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 <= 599999)) || ((a25 == 12 && a29 <= 599999) && a4 == 1)) || ((a25 == 11 && a4 == 1) && a23 <= 137)) || (((a25 == 12 && a4 == 0) && a29 <= 599999) && a23 <= 137)) || (((a25 == 13 && a23 + 43 <= 0) && a29 <= 275) && a4 == 0)) || ((a29 <= 599999 && a25 == 9) && a4 == 1)) || (((a29 <= 275 && a4 == 0) && a25 == 11) && a23 <= 262) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((a4 == 0 && a25 <= 10) && a29 <= 130) || ((a23 + 43 <= 0 && a25 == 12) && a29 <= 220)) || ((a25 == 11 && a29 <= 599999) && a4 == 1)) || ((a23 + 43 <= 0 && a25 == 11) && a29 <= 130)) || ((a25 == 13 && a29 <= 599999) && a4 == 1)) || (((a25 <= 10 && a29 <= 599999) && a4 == 1) && !(a23 <= 306))) || ((a29 <= 275 && a25 == 12) && a4 == 0)) || (((a25 == 13 && a4 == 0) && 35913 + a29 <= 0) && a23 <= 137)) || (a29 <= 599999 && (((a23 + 43 <= 0 && a29 + 275824 <= 0) && a25 == 9) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)))) || ((a29 <= 275 && a25 <= 10) && a4 == 1)) || (((a29 <= 140 && a4 == 0) && a25 <= 10) && a23 <= 262)) || (((a23 + 43 <= 0 && a4 == 0) && a29 <= 599999) && a25 == 9)) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 <= 599999)) || ((a25 == 12 && a29 <= 599999) && a4 == 1)) || ((a25 == 11 && a4 == 1) && a23 <= 137)) || (((a25 == 12 && a4 == 0) && a29 <= 599999) && a23 <= 137)) || (((a25 == 13 && a23 + 43 <= 0) && a29 <= 275) && a4 == 0)) || ((a29 <= 599999 && a25 == 9) && a4 == 1)) || (((a29 <= 275 && a4 == 0) && a25 == 11) && a23 <= 262) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 00:04:04,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...