/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/loop-invgen/heapsort.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:25:22,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:25:22,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:25:22,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 14:25:22,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:25:22,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:25:22,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:25:22,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 14:25:22,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:25:22,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:25:22,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:25:22,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:25:22,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:25:22,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:25:22,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:25:22,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:25:22,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:25:22,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:25:22,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:25:22,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:25:22,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:25:22,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:25:22,433 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:25:22,433 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:25:22,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:25:22,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:25:22,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:25:22,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:25:22,627 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:25:22,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/heapsort.i [2022-01-10 14:25:22,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5def0b98/e4d3e0cf10e54d15b42f5d55b84f1808/FLAGd2cd36825 [2022-01-10 14:25:22,996 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:25:22,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/heapsort.i [2022-01-10 14:25:23,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5def0b98/e4d3e0cf10e54d15b42f5d55b84f1808/FLAGd2cd36825 [2022-01-10 14:25:23,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5def0b98/e4d3e0cf10e54d15b42f5d55b84f1808 [2022-01-10 14:25:23,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:25:23,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:25:23,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:25:23,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:25:23,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:25:23,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67516db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23, skipping insertion in model container [2022-01-10 14:25:23,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:25:23,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:25:23,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/heapsort.i[893,906] [2022-01-10 14:25:23,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:25:23,586 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:25:23,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/heapsort.i[893,906] [2022-01-10 14:25:23,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:25:23,623 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:25:23,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23 WrapperNode [2022-01-10 14:25:23,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:25:23,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:25:23,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:25:23,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:25:23,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,665 INFO L137 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 158 [2022-01-10 14:25:23,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:25:23,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:25:23,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:25:23,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:25:23,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:25:23,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:25:23,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:25:23,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:25:23,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:23,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:25:23,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:25:23,729 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 14:25:23,745 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 14:25:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:25:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:25:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:25:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:25:23,801 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:25:23,802 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:25:23,985 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:25:23,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:25:23,992 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 14:25:23,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:25:23 BoogieIcfgContainer [2022-01-10 14:25:23,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:25:23,997 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:25:23,998 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:25:23,998 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:25:24,000 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:25:23" (1/1) ... [2022-01-10 14:25:24,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:25:24 BasicIcfg [2022-01-10 14:25:24,095 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:25:24,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:25:24,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:25:24,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:25:24,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:25:23" (1/4) ... [2022-01-10 14:25:24,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d9a048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:25:24, skipping insertion in model container [2022-01-10 14:25:24,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:25:23" (2/4) ... [2022-01-10 14:25:24,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d9a048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:25:24, skipping insertion in model container [2022-01-10 14:25:24,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:25:23" (3/4) ... [2022-01-10 14:25:24,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d9a048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:25:24, skipping insertion in model container [2022-01-10 14:25:24,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:25:24" (4/4) ... [2022-01-10 14:25:24,110 INFO L111 eAbstractionObserver]: Analyzing ICFG heapsort.iTransformedIcfg [2022-01-10 14:25:24,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:25:24,114 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-01-10 14:25:24,156 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:25:24,162 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 14:25:24,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-01-10 14:25:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 70 states have internal predecessors, (94), 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 14:25:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 14:25:24,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:24,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:24,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2068019307, now seen corresponding path program 1 times [2022-01-10 14:25:24,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:24,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352588311] [2022-01-10 14:25:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:24,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:24,335 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 14:25:24,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:24,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352588311] [2022-01-10 14:25:24,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352588311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:24,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:24,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:25:24,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383995804] [2022-01-10 14:25:24,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:24,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 14:25:24,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:24,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 14:25:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:25:24,367 INFO L87 Difference]: Start difference. First operand has 71 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 70 states have internal predecessors, (94), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 14:25:24,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:24,390 INFO L93 Difference]: Finished difference Result 138 states and 182 transitions. [2022-01-10 14:25:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 14:25:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-01-10 14:25:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:24,398 INFO L225 Difference]: With dead ends: 138 [2022-01-10 14:25:24,398 INFO L226 Difference]: Without dead ends: 67 [2022-01-10 14:25:24,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 14:25:24,406 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:24,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:25:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-01-10 14:25:24,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-01-10 14:25:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 66 states have internal predecessors, (73), 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 14:25:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2022-01-10 14:25:24,436 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 9 [2022-01-10 14:25:24,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:24,437 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2022-01-10 14:25:24,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 14:25:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2022-01-10 14:25:24,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 14:25:24,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:24,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:24,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:25:24,439 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:24,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2068049098, now seen corresponding path program 1 times [2022-01-10 14:25:24,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:24,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709464106] [2022-01-10 14:25:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:24,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:24,555 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 14:25:24,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:24,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709464106] [2022-01-10 14:25:24,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709464106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:24,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:24,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:25:24,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049933884] [2022-01-10 14:25:24,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:24,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:25:24,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:24,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:25:24,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:25:24,560 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 14:25:24,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:24,674 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2022-01-10 14:25:24,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:25:24,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-01-10 14:25:24,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:24,675 INFO L225 Difference]: With dead ends: 72 [2022-01-10 14:25:24,675 INFO L226 Difference]: Without dead ends: 70 [2022-01-10 14:25:24,676 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 14:25:24,676 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 13 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:24,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 100 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:25:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-01-10 14:25:24,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2022-01-10 14:25:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 64 states have internal predecessors, (71), 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 14:25:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-01-10 14:25:24,682 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 9 [2022-01-10 14:25:24,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:24,682 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-01-10 14:25:24,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 14:25:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-01-10 14:25:24,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 14:25:24,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:24,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:24,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:25:24,683 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:24,684 INFO L85 PathProgramCache]: Analyzing trace with hash 2068050124, now seen corresponding path program 1 times [2022-01-10 14:25:24,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:24,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417912731] [2022-01-10 14:25:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:24,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:24,747 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 14:25:24,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:24,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417912731] [2022-01-10 14:25:24,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417912731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:24,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:24,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:25:24,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127214679] [2022-01-10 14:25:24,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:24,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:25:24,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:24,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:25:24,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:25:24,749 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 14:25:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:24,880 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-01-10 14:25:24,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 14:25:24,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-01-10 14:25:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:24,883 INFO L225 Difference]: With dead ends: 71 [2022-01-10 14:25:24,883 INFO L226 Difference]: Without dead ends: 69 [2022-01-10 14:25:24,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:25:24,884 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 74 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:24,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 82 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:25:24,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-01-10 14:25:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2022-01-10 14:25:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 62 states have internal predecessors, (69), 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 14:25:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2022-01-10 14:25:24,891 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 9 [2022-01-10 14:25:24,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:24,893 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2022-01-10 14:25:24,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 14:25:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2022-01-10 14:25:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 14:25:24,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:24,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:24,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 14:25:24,894 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:24,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:24,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2068080941, now seen corresponding path program 1 times [2022-01-10 14:25:24,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:24,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100381031] [2022-01-10 14:25:24,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:24,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:25,129 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 14:25:25,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:25,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100381031] [2022-01-10 14:25:25,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100381031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:25,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:25,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 14:25:25,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591051593] [2022-01-10 14:25:25,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:25,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 14:25:25,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:25,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 14:25:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 14:25:25,131 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:25:25,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:25,815 INFO L93 Difference]: Finished difference Result 245 states and 272 transitions. [2022-01-10 14:25:25,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 14:25:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2022-01-10 14:25:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:25,817 INFO L225 Difference]: With dead ends: 245 [2022-01-10 14:25:25,817 INFO L226 Difference]: Without dead ends: 239 [2022-01-10 14:25:25,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-10 14:25:25,818 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 296 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:25,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 283 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 14:25:25,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-01-10 14:25:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 116. [2022-01-10 14:25:25,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 104 states have (on average 1.4230769230769231) internal successors, (148), 115 states have internal predecessors, (148), 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 14:25:25,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 148 transitions. [2022-01-10 14:25:25,839 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 148 transitions. Word has length 9 [2022-01-10 14:25:25,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:25,839 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 148 transitions. [2022-01-10 14:25:25,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 14:25:25,840 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 148 transitions. [2022-01-10 14:25:25,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 14:25:25,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:25,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:25,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 14:25:25,841 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:25,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:25,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2096710092, now seen corresponding path program 1 times [2022-01-10 14:25:25,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:25,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350638048] [2022-01-10 14:25:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:25,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:26,233 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 14:25:26,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:26,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350638048] [2022-01-10 14:25:26,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350638048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:26,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:26,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:25:26,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665097997] [2022-01-10 14:25:26,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:26,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:25:26,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:25:26,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:25:26,235 INFO L87 Difference]: Start difference. First operand 116 states and 148 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 14:25:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:26,522 INFO L93 Difference]: Finished difference Result 176 states and 213 transitions. [2022-01-10 14:25:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:25:26,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-01-10 14:25:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:26,524 INFO L225 Difference]: With dead ends: 176 [2022-01-10 14:25:26,524 INFO L226 Difference]: Without dead ends: 116 [2022-01-10 14:25:26,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:25:26,525 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:26,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 14:25:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-01-10 14:25:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-01-10 14:25:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 115 states have internal predecessors, (147), 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 14:25:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 147 transitions. [2022-01-10 14:25:26,541 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 147 transitions. Word has length 9 [2022-01-10 14:25:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:26,541 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 147 transitions. [2022-01-10 14:25:26,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 14:25:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 147 transitions. [2022-01-10 14:25:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 14:25:26,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:26,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:26,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 14:25:26,542 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:26,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:26,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1174634956, now seen corresponding path program 1 times [2022-01-10 14:25:26,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:26,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532612318] [2022-01-10 14:25:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:26,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:27,153 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 14:25:27,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:27,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532612318] [2022-01-10 14:25:27,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532612318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:27,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:27,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 14:25:27,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015197659] [2022-01-10 14:25:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:27,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 14:25:27,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:27,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 14:25:27,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:25:27,155 INFO L87 Difference]: Start difference. First operand 116 states and 147 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 14:25:27,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:27,897 INFO L93 Difference]: Finished difference Result 225 states and 262 transitions. [2022-01-10 14:25:27,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 14:25:27,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 11 [2022-01-10 14:25:27,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:27,899 INFO L225 Difference]: With dead ends: 225 [2022-01-10 14:25:27,899 INFO L226 Difference]: Without dead ends: 221 [2022-01-10 14:25:27,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:25:27,903 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 227 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:27,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 417 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 14:25:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-01-10 14:25:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 171. [2022-01-10 14:25:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 159 states have (on average 1.4276729559748427) internal successors, (227), 170 states have internal predecessors, (227), 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 14:25:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 227 transitions. [2022-01-10 14:25:27,939 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 227 transitions. Word has length 11 [2022-01-10 14:25:27,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:27,939 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 227 transitions. [2022-01-10 14:25:27,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 14:25:27,940 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 227 transitions. [2022-01-10 14:25:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 14:25:27,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:27,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:27,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 14:25:27,941 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:27,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:27,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1144033703, now seen corresponding path program 1 times [2022-01-10 14:25:27,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:27,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714747116] [2022-01-10 14:25:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:27,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:28,252 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 14:25:28,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714747116] [2022-01-10 14:25:28,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714747116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:28,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:28,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 14:25:28,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900529492] [2022-01-10 14:25:28,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:28,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 14:25:28,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:28,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 14:25:28,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 14:25:28,254 INFO L87 Difference]: Start difference. First operand 171 states and 227 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 14:25:29,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:29,182 INFO L93 Difference]: Finished difference Result 393 states and 476 transitions. [2022-01-10 14:25:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 14:25:29,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 11 [2022-01-10 14:25:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:29,183 INFO L225 Difference]: With dead ends: 393 [2022-01-10 14:25:29,184 INFO L226 Difference]: Without dead ends: 274 [2022-01-10 14:25:29,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-01-10 14:25:29,185 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 255 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:29,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 262 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 14:25:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-01-10 14:25:29,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 207. [2022-01-10 14:25:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 195 states have (on average 1.4102564102564104) internal successors, (275), 206 states have internal predecessors, (275), 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 14:25:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 275 transitions. [2022-01-10 14:25:29,215 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 275 transitions. Word has length 11 [2022-01-10 14:25:29,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:29,216 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 275 transitions. [2022-01-10 14:25:29,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 14:25:29,216 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 275 transitions. [2022-01-10 14:25:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 14:25:29,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:29,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:29,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 14:25:29,217 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:29,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:29,217 INFO L85 PathProgramCache]: Analyzing trace with hash 95279743, now seen corresponding path program 1 times [2022-01-10 14:25:29,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:29,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000131894] [2022-01-10 14:25:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:29,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:32,848 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 14:25:32,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:32,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000131894] [2022-01-10 14:25:32,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000131894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:32,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:32,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 14:25:32,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878523909] [2022-01-10 14:25:32,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:32,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 14:25:32,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:32,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 14:25:32,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-10 14:25:32,850 INFO L87 Difference]: Start difference. First operand 207 states and 275 transitions. Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 14:25:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:36,056 INFO L93 Difference]: Finished difference Result 373 states and 455 transitions. [2022-01-10 14:25:36,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 14:25:36,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 13 [2022-01-10 14:25:36,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:36,058 INFO L225 Difference]: With dead ends: 373 [2022-01-10 14:25:36,058 INFO L226 Difference]: Without dead ends: 371 [2022-01-10 14:25:36,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2022-01-10 14:25:36,059 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 352 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:36,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 373 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-10 14:25:36,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-01-10 14:25:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 205. [2022-01-10 14:25:36,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 194 states have (on average 1.3814432989690721) internal successors, (268), 204 states have internal predecessors, (268), 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 14:25:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 268 transitions. [2022-01-10 14:25:36,107 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 268 transitions. Word has length 13 [2022-01-10 14:25:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:36,108 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 268 transitions. [2022-01-10 14:25:36,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 14:25:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 268 transitions. [2022-01-10 14:25:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 14:25:36,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:36,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:36,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 14:25:36,109 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:36,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1369560676, now seen corresponding path program 1 times [2022-01-10 14:25:36,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:36,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812949717] [2022-01-10 14:25:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:36,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:36,786 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 14:25:36,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:36,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812949717] [2022-01-10 14:25:36,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812949717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:36,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:36,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 14:25:36,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017695936] [2022-01-10 14:25:36,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:36,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 14:25:36,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 14:25:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 14:25:36,787 INFO L87 Difference]: Start difference. First operand 205 states and 268 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 14:25:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:39,121 INFO L93 Difference]: Finished difference Result 424 states and 486 transitions. [2022-01-10 14:25:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 14:25:39,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2022-01-10 14:25:39,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:39,123 INFO L225 Difference]: With dead ends: 424 [2022-01-10 14:25:39,123 INFO L226 Difference]: Without dead ends: 420 [2022-01-10 14:25:39,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 14:25:39,124 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 438 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:39,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 325 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 14:25:39,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-01-10 14:25:39,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 239. [2022-01-10 14:25:39,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 228 states have (on average 1.3728070175438596) internal successors, (313), 238 states have internal predecessors, (313), 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 14:25:39,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 313 transitions. [2022-01-10 14:25:39,174 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 313 transitions. Word has length 15 [2022-01-10 14:25:39,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:39,174 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 313 transitions. [2022-01-10 14:25:39,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 14:25:39,174 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 313 transitions. [2022-01-10 14:25:39,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 14:25:39,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:39,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:39,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 14:25:39,175 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:39,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:39,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1127217531, now seen corresponding path program 1 times [2022-01-10 14:25:39,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:39,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410095128] [2022-01-10 14:25:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:39,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:39,216 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 14:25:39,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:39,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410095128] [2022-01-10 14:25:39,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410095128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:39,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:39,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 14:25:39,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283917322] [2022-01-10 14:25:39,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:39,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 14:25:39,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:39,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 14:25:39,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 14:25:39,218 INFO L87 Difference]: Start difference. First operand 239 states and 313 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 14:25:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:39,454 INFO L93 Difference]: Finished difference Result 327 states and 399 transitions. [2022-01-10 14:25:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 14:25:39,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-01-10 14:25:39,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:39,455 INFO L225 Difference]: With dead ends: 327 [2022-01-10 14:25:39,455 INFO L226 Difference]: Without dead ends: 325 [2022-01-10 14:25:39,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-10 14:25:39,456 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 272 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:39,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 253 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:25:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-01-10 14:25:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 253. [2022-01-10 14:25:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 242 states have (on average 1.3677685950413223) internal successors, (331), 252 states have internal predecessors, (331), 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 14:25:39,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 331 transitions. [2022-01-10 14:25:39,512 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 331 transitions. Word has length 15 [2022-01-10 14:25:39,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:39,512 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 331 transitions. [2022-01-10 14:25:39,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 14:25:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 331 transitions. [2022-01-10 14:25:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 14:25:39,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:39,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:39,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 14:25:39,516 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:39,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash -924247448, now seen corresponding path program 1 times [2022-01-10 14:25:39,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:39,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098237133] [2022-01-10 14:25:39,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:39,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:39,950 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 14:25:39,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:39,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098237133] [2022-01-10 14:25:39,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098237133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:39,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:39,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 14:25:39,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720617938] [2022-01-10 14:25:39,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:39,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 14:25:39,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:39,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 14:25:39,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-10 14:25:39,952 INFO L87 Difference]: Start difference. First operand 253 states and 331 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 14:25:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:42,521 INFO L93 Difference]: Finished difference Result 389 states and 464 transitions. [2022-01-10 14:25:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 14:25:42,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 17 [2022-01-10 14:25:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:42,523 INFO L225 Difference]: With dead ends: 389 [2022-01-10 14:25:42,523 INFO L226 Difference]: Without dead ends: 387 [2022-01-10 14:25:42,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-01-10 14:25:42,524 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 272 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:42,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 346 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 14:25:42,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-01-10 14:25:42,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 271. [2022-01-10 14:25:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 260 states have (on average 1.353846153846154) internal successors, (352), 270 states have internal predecessors, (352), 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 14:25:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 352 transitions. [2022-01-10 14:25:42,605 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 352 transitions. Word has length 17 [2022-01-10 14:25:42,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:42,605 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 352 transitions. [2022-01-10 14:25:42,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 14:25:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 352 transitions. [2022-01-10 14:25:42,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 14:25:42,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:42,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:42,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 14:25:42,606 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:42,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:42,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1755532697, now seen corresponding path program 1 times [2022-01-10 14:25:42,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:42,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552989967] [2022-01-10 14:25:42,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:42,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:43,028 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 14:25:43,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:43,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552989967] [2022-01-10 14:25:43,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552989967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:43,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:43,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 14:25:43,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614911064] [2022-01-10 14:25:43,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:43,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 14:25:43,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:43,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 14:25:43,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-10 14:25:43,030 INFO L87 Difference]: Start difference. First operand 271 states and 352 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 14:25:44,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:44,193 INFO L93 Difference]: Finished difference Result 430 states and 514 transitions. [2022-01-10 14:25:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-10 14:25:44,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 19 [2022-01-10 14:25:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:44,195 INFO L225 Difference]: With dead ends: 430 [2022-01-10 14:25:44,195 INFO L226 Difference]: Without dead ends: 424 [2022-01-10 14:25:44,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2022-01-10 14:25:44,196 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 688 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:44,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 368 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 14:25:44,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-01-10 14:25:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 312. [2022-01-10 14:25:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 301 states have (on average 1.3521594684385383) internal successors, (407), 311 states have internal predecessors, (407), 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 14:25:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 407 transitions. [2022-01-10 14:25:44,310 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 407 transitions. Word has length 19 [2022-01-10 14:25:44,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:44,310 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 407 transitions. [2022-01-10 14:25:44,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 14:25:44,310 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 407 transitions. [2022-01-10 14:25:44,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 14:25:44,311 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:44,311 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] [2022-01-10 14:25:44,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 14:25:44,311 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:44,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:44,311 INFO L85 PathProgramCache]: Analyzing trace with hash -855185026, now seen corresponding path program 1 times [2022-01-10 14:25:44,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:44,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903783392] [2022-01-10 14:25:44,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:44,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:44,550 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 14:25:44,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:44,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903783392] [2022-01-10 14:25:44,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903783392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:25:44,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:25:44,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 14:25:44,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882800276] [2022-01-10 14:25:44,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:25:44,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 14:25:44,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:44,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 14:25:44,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-10 14:25:44,552 INFO L87 Difference]: Start difference. First operand 312 states and 407 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 14:25:46,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:25:46,044 INFO L93 Difference]: Finished difference Result 562 states and 681 transitions. [2022-01-10 14:25:46,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-10 14:25:46,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 21 [2022-01-10 14:25:46,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:25:46,046 INFO L225 Difference]: With dead ends: 562 [2022-01-10 14:25:46,046 INFO L226 Difference]: Without dead ends: 552 [2022-01-10 14:25:46,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-01-10 14:25:46,047 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 319 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 14:25:46,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 449 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 14:25:46,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-01-10 14:25:46,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 403. [2022-01-10 14:25:46,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 392 states have (on average 1.3265306122448979) internal successors, (520), 402 states have internal predecessors, (520), 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 14:25:46,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 520 transitions. [2022-01-10 14:25:46,210 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 520 transitions. Word has length 21 [2022-01-10 14:25:46,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:25:46,210 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 520 transitions. [2022-01-10 14:25:46,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 14:25:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 520 transitions. [2022-01-10 14:25:46,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 14:25:46,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:25:46,211 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:25:46,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 14:25:46,211 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2022-01-10 14:25:46,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:25:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1445982804, now seen corresponding path program 1 times [2022-01-10 14:25:46,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:25:46,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071607964] [2022-01-10 14:25:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:46,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:25:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:25:46,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:25:46,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071607964] [2022-01-10 14:25:46,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071607964] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:25:46,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251128181] [2022-01-10 14:25:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:25:46,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:25:46,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:25:46,413 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 14:25:46,450 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 14:25:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:25:46,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-10 14:25:46,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:25:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:25:57,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:25:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:25:59,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251128181] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:25:59,400 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:25:59,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 11] total 28 [2022-01-10 14:25:59,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707102591] [2022-01-10 14:25:59,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:25:59,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-10 14:25:59,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:25:59,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-10 14:25:59,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2022-01-10 14:25:59,402 INFO L87 Difference]: Start difference. First operand 403 states and 520 transitions. Second operand has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 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 14:26:01,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 14:26:03,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 14:26:05,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 14:26:07,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 14:26:09,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 14:26:11,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 14:26:14,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []