/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_BITWISE.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:39:29,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:39:29,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:39:29,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 12:39:29,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:39:29,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:39:29,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:39:29,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:39:29,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:39:29,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:39:29,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:39:29,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:39:29,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:39:29,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:39:29,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:39:29,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:39:29,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 12:39:29,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:39:29,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:39:29,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:39:29,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:39:29,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:39:29,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:39:29,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:39:29,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:39:29,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:39:29,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:39:29,543 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:39:29,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:39:29,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:39:29,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:39:29,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:39:29,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:39:29,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:39:29,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:39:29,545 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:39:29,545 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:39:29,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:39:29,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:39:29,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:39:29,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:39:29,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:39:29,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:39:29,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:39:29,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:39:29,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:39:29,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:39:29,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:39:29,547 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:39:29,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:39:29,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:39:29,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:39:29,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:39:29,549 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:39:29,550 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:39:29,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:39:29,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:39:29,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:39:29,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:39:29,768 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:39:29,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.07.cil.c [2022-01-10 12:39:29,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca0f36c5f/21486bac8ccb4c30b1c53e5d5c75c687/FLAG01ff15a13 [2022-01-10 12:39:30,322 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:39:30,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.07.cil.c [2022-01-10 12:39:30,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca0f36c5f/21486bac8ccb4c30b1c53e5d5c75c687/FLAG01ff15a13 [2022-01-10 12:39:30,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca0f36c5f/21486bac8ccb4c30b1c53e5d5c75c687 [2022-01-10 12:39:30,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:39:30,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:39:30,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:39:30,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:39:30,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:39:30,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:39:30" (1/1) ... [2022-01-10 12:39:30,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d37b5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:30, skipping insertion in model container [2022-01-10 12:39:30,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:39:30" (1/1) ... [2022-01-10 12:39:30,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:39:30,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:39:31,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.07.cil.c[706,719] [2022-01-10 12:39:31,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:39:31,105 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:39:31,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.07.cil.c[706,719] [2022-01-10 12:39:31,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:39:31,166 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:39:31,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31 WrapperNode [2022-01-10 12:39:31,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:39:31,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:39:31,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:39:31,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:39:31,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,243 INFO L137 Inliner]: procedures = 42, calls = 51, calls flagged for inlining = 46, calls inlined = 124, statements flattened = 1845 [2022-01-10 12:39:31,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:39:31,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:39:31,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:39:31,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:39:31,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:39:31,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:39:31,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:39:31,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:39:31,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (1/1) ... [2022-01-10 12:39:31,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:39:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:39:31,384 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 12:39:31,399 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 12:39:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:39:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:39:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:39:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:39:31,571 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:39:31,573 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:39:32,746 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:39:32,763 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:39:32,764 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-01-10 12:39:32,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:39:32 BoogieIcfgContainer [2022-01-10 12:39:32,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:39:32,768 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:39:32,768 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:39:32,769 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:39:32,772 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:39:32" (1/1) ... [2022-01-10 12:39:32,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:39:32 BasicIcfg [2022-01-10 12:39:32,991 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:39:32,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:39:32,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:39:32,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:39:32,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:39:30" (1/4) ... [2022-01-10 12:39:32,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3293236b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:39:32, skipping insertion in model container [2022-01-10 12:39:32,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:39:31" (2/4) ... [2022-01-10 12:39:32,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3293236b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:39:32, skipping insertion in model container [2022-01-10 12:39:32,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:39:32" (3/4) ... [2022-01-10 12:39:32,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3293236b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:39:32, skipping insertion in model container [2022-01-10 12:39:32,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:39:32" (4/4) ... [2022-01-10 12:39:33,002 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.07.cil.cTransformedIcfg [2022-01-10 12:39:33,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:39:33,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 12:39:33,052 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:39:33,058 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 12:39:33,058 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 12:39:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 776 states, 774 states have (on average 1.524547803617571) internal successors, (1180), 775 states have internal predecessors, (1180), 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 12:39:33,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:33,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:33,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:33,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:33,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:33,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1746165966, now seen corresponding path program 1 times [2022-01-10 12:39:33,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:33,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362026769] [2022-01-10 12:39:33,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:33,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:33,451 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 12:39:33,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:33,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362026769] [2022-01-10 12:39:33,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362026769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:33,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:33,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:33,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499536486] [2022-01-10 12:39:33,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:33,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:33,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:33,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:33,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:33,524 INFO L87 Difference]: Start difference. First operand has 776 states, 774 states have (on average 1.524547803617571) internal successors, (1180), 775 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:33,709 INFO L93 Difference]: Finished difference Result 1543 states and 2347 transitions. [2022-01-10 12:39:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:33,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:33,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:33,726 INFO L225 Difference]: With dead ends: 1543 [2022-01-10 12:39:33,727 INFO L226 Difference]: Without dead ends: 771 [2022-01-10 12:39:33,733 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 12:39:33,736 INFO L933 BasicCegarLoop]: 1154 mSDtfsCounter, 1148 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:33,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 1154 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:33,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2022-01-10 12:39:33,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2022-01-10 12:39:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 1.4948051948051948) internal successors, (1151), 770 states have internal predecessors, (1151), 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 12:39:33,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1151 transitions. [2022-01-10 12:39:33,817 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1151 transitions. Word has length 114 [2022-01-10 12:39:33,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:33,818 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1151 transitions. [2022-01-10 12:39:33,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:33,818 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1151 transitions. [2022-01-10 12:39:33,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:33,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:33,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:33,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:39:33,823 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:33,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:33,824 INFO L85 PathProgramCache]: Analyzing trace with hash 669612557, now seen corresponding path program 1 times [2022-01-10 12:39:33,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:33,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812042405] [2022-01-10 12:39:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:33,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:33,903 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 12:39:33,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:33,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812042405] [2022-01-10 12:39:33,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812042405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:33,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:33,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:33,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414484120] [2022-01-10 12:39:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:33,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:33,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:33,907 INFO L87 Difference]: Start difference. First operand 771 states and 1151 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:34,007 INFO L93 Difference]: Finished difference Result 2140 states and 3186 transitions. [2022-01-10 12:39:34,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:34,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:34,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:34,015 INFO L225 Difference]: With dead ends: 2140 [2022-01-10 12:39:34,015 INFO L226 Difference]: Without dead ends: 1383 [2022-01-10 12:39:34,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,026 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 1041 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:34,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 2099 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:34,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-01-10 12:39:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1380. [2022-01-10 12:39:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4807831762146484) internal successors, (2042), 1379 states have internal predecessors, (2042), 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 12:39:34,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2042 transitions. [2022-01-10 12:39:34,086 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2042 transitions. Word has length 114 [2022-01-10 12:39:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:34,086 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2042 transitions. [2022-01-10 12:39:34,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2042 transitions. [2022-01-10 12:39:34,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:34,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:34,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:34,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:39:34,090 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:34,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:34,090 INFO L85 PathProgramCache]: Analyzing trace with hash -595082418, now seen corresponding path program 1 times [2022-01-10 12:39:34,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:34,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042116987] [2022-01-10 12:39:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:34,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:34,149 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 12:39:34,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:34,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042116987] [2022-01-10 12:39:34,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042116987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:34,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:34,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:34,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306840512] [2022-01-10 12:39:34,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:34,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:34,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:34,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:34,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,152 INFO L87 Difference]: Start difference. First operand 1380 states and 2042 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:34,233 INFO L93 Difference]: Finished difference Result 2745 states and 4061 transitions. [2022-01-10 12:39:34,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:34,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:34,242 INFO L225 Difference]: With dead ends: 2745 [2022-01-10 12:39:34,242 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:34,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,251 INFO L933 BasicCegarLoop]: 1138 mSDtfsCounter, 1129 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:34,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 1138 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:34,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4749818709209572) internal successors, (2034), 1379 states have internal predecessors, (2034), 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 12:39:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2034 transitions. [2022-01-10 12:39:34,310 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2034 transitions. Word has length 114 [2022-01-10 12:39:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:34,310 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2034 transitions. [2022-01-10 12:39:34,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2034 transitions. [2022-01-10 12:39:34,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:34,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:34,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:34,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:39:34,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:34,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:34,316 INFO L85 PathProgramCache]: Analyzing trace with hash 156482572, now seen corresponding path program 1 times [2022-01-10 12:39:34,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:34,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583912969] [2022-01-10 12:39:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:34,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:34,430 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 12:39:34,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:34,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583912969] [2022-01-10 12:39:34,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583912969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:34,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:34,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:34,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491868086] [2022-01-10 12:39:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:34,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:34,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:34,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:34,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,433 INFO L87 Difference]: Start difference. First operand 1380 states and 2034 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:34,506 INFO L93 Difference]: Finished difference Result 2744 states and 4044 transitions. [2022-01-10 12:39:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:34,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:34,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:34,512 INFO L225 Difference]: With dead ends: 2744 [2022-01-10 12:39:34,512 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:34,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,520 INFO L933 BasicCegarLoop]: 1133 mSDtfsCounter, 1123 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:34,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 1133 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:34,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.469180565627266) internal successors, (2026), 1379 states have internal predecessors, (2026), 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 12:39:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2026 transitions. [2022-01-10 12:39:34,577 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2026 transitions. Word has length 114 [2022-01-10 12:39:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:34,577 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2026 transitions. [2022-01-10 12:39:34,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2026 transitions. [2022-01-10 12:39:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:34,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:34,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:34,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:39:34,579 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:34,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1897483378, now seen corresponding path program 1 times [2022-01-10 12:39:34,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:34,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648788140] [2022-01-10 12:39:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:34,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:34,673 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 12:39:34,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:34,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648788140] [2022-01-10 12:39:34,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648788140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:34,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:34,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:34,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537944091] [2022-01-10 12:39:34,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:34,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:34,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:34,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,676 INFO L87 Difference]: Start difference. First operand 1380 states and 2026 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:34,770 INFO L93 Difference]: Finished difference Result 2743 states and 4027 transitions. [2022-01-10 12:39:34,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:34,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:34,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:34,776 INFO L225 Difference]: With dead ends: 2743 [2022-01-10 12:39:34,776 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:34,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,780 INFO L933 BasicCegarLoop]: 1128 mSDtfsCounter, 1117 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:34,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 1128 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:34,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:34,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:34,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4633792603335751) internal successors, (2018), 1379 states have internal predecessors, (2018), 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 12:39:34,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2018 transitions. [2022-01-10 12:39:34,839 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2018 transitions. Word has length 114 [2022-01-10 12:39:34,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:34,840 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2018 transitions. [2022-01-10 12:39:34,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2018 transitions. [2022-01-10 12:39:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:34,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:34,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:34,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:39:34,852 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:34,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:34,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1444282285, now seen corresponding path program 1 times [2022-01-10 12:39:34,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:34,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148889028] [2022-01-10 12:39:34,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:34,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:34,905 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 12:39:34,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:34,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148889028] [2022-01-10 12:39:34,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148889028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:34,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:34,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:34,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669818808] [2022-01-10 12:39:34,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:34,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:34,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:34,907 INFO L87 Difference]: Start difference. First operand 1380 states and 2018 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:34,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:34,992 INFO L93 Difference]: Finished difference Result 2742 states and 4010 transitions. [2022-01-10 12:39:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:34,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:34,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:34,997 INFO L225 Difference]: With dead ends: 2742 [2022-01-10 12:39:34,997 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:35,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,001 INFO L933 BasicCegarLoop]: 1123 mSDtfsCounter, 1111 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:35,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 1123 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:35,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:35,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.457577955039884) internal successors, (2010), 1379 states have internal predecessors, (2010), 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 12:39:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2010 transitions. [2022-01-10 12:39:35,090 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2010 transitions. Word has length 114 [2022-01-10 12:39:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:35,091 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2010 transitions. [2022-01-10 12:39:35,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2010 transitions. [2022-01-10 12:39:35,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:35,092 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:35,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:35,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:39:35,093 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:35,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:35,093 INFO L85 PathProgramCache]: Analyzing trace with hash 61140911, now seen corresponding path program 1 times [2022-01-10 12:39:35,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:35,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697513774] [2022-01-10 12:39:35,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:35,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:35,140 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 12:39:35,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:35,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697513774] [2022-01-10 12:39:35,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697513774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:35,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:35,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:35,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751017348] [2022-01-10 12:39:35,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:35,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:35,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:35,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:35,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,143 INFO L87 Difference]: Start difference. First operand 1380 states and 2010 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:35,219 INFO L93 Difference]: Finished difference Result 2741 states and 3993 transitions. [2022-01-10 12:39:35,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:35,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:35,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:35,225 INFO L225 Difference]: With dead ends: 2741 [2022-01-10 12:39:35,225 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:35,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,228 INFO L933 BasicCegarLoop]: 1118 mSDtfsCounter, 1105 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:35,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 1118 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:35,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:35,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4517766497461928) internal successors, (2002), 1379 states have internal predecessors, (2002), 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 12:39:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2002 transitions. [2022-01-10 12:39:35,289 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2002 transitions. Word has length 114 [2022-01-10 12:39:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:35,290 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2002 transitions. [2022-01-10 12:39:35,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2002 transitions. [2022-01-10 12:39:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:35,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:35,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:35,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:39:35,291 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:35,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1817638765, now seen corresponding path program 1 times [2022-01-10 12:39:35,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:35,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281303456] [2022-01-10 12:39:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:35,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:35,343 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 12:39:35,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:35,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281303456] [2022-01-10 12:39:35,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281303456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:35,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:35,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:35,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013719918] [2022-01-10 12:39:35,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:35,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:35,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:35,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:35,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,346 INFO L87 Difference]: Start difference. First operand 1380 states and 2002 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:35,443 INFO L93 Difference]: Finished difference Result 2740 states and 3976 transitions. [2022-01-10 12:39:35,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:35,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:35,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:35,448 INFO L225 Difference]: With dead ends: 2740 [2022-01-10 12:39:35,448 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:35,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,451 INFO L933 BasicCegarLoop]: 1113 mSDtfsCounter, 1099 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:35,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1099 Valid, 1113 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:35,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4459753444525019) internal successors, (1994), 1379 states have internal predecessors, (1994), 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 12:39:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1994 transitions. [2022-01-10 12:39:35,515 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1994 transitions. Word has length 114 [2022-01-10 12:39:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:35,516 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1994 transitions. [2022-01-10 12:39:35,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1994 transitions. [2022-01-10 12:39:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:35,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:35,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:35,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:39:35,518 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:35,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:35,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1450835985, now seen corresponding path program 1 times [2022-01-10 12:39:35,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:35,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854992637] [2022-01-10 12:39:35,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:35,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:35,582 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 12:39:35,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:35,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854992637] [2022-01-10 12:39:35,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854992637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:35,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:35,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:35,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23523067] [2022-01-10 12:39:35,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:35,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:35,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:35,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:35,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,585 INFO L87 Difference]: Start difference. First operand 1380 states and 1994 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:35,661 INFO L93 Difference]: Finished difference Result 2739 states and 3959 transitions. [2022-01-10 12:39:35,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:35,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:35,667 INFO L225 Difference]: With dead ends: 2739 [2022-01-10 12:39:35,667 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:35,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,672 INFO L933 BasicCegarLoop]: 1108 mSDtfsCounter, 1093 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:35,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 1108 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:35,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:35,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4401740391588107) internal successors, (1986), 1379 states have internal predecessors, (1986), 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 12:39:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1986 transitions. [2022-01-10 12:39:35,761 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1986 transitions. Word has length 114 [2022-01-10 12:39:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:35,761 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1986 transitions. [2022-01-10 12:39:35,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1986 transitions. [2022-01-10 12:39:35,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:35,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:35,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:35,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:39:35,763 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:35,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:35,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2045959981, now seen corresponding path program 1 times [2022-01-10 12:39:35,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:35,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506534008] [2022-01-10 12:39:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:35,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:35,811 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 12:39:35,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:35,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506534008] [2022-01-10 12:39:35,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506534008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:35,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:35,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:35,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096599601] [2022-01-10 12:39:35,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:35,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:35,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:35,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:35,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,814 INFO L87 Difference]: Start difference. First operand 1380 states and 1986 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:35,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:35,921 INFO L93 Difference]: Finished difference Result 2738 states and 3942 transitions. [2022-01-10 12:39:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:35,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:35,927 INFO L225 Difference]: With dead ends: 2738 [2022-01-10 12:39:35,927 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:35,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:35,930 INFO L933 BasicCegarLoop]: 1085 mSDtfsCounter, 996 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:35,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [996 Valid, 1163 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:35,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:35,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4227701232777374) internal successors, (1962), 1379 states have internal predecessors, (1962), 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 12:39:36,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1962 transitions. [2022-01-10 12:39:36,003 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1962 transitions. Word has length 114 [2022-01-10 12:39:36,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:36,004 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1962 transitions. [2022-01-10 12:39:36,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1962 transitions. [2022-01-10 12:39:36,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:36,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:36,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:36,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:39:36,006 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:36,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:36,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1038506578, now seen corresponding path program 1 times [2022-01-10 12:39:36,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:36,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942482840] [2022-01-10 12:39:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:36,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:36,045 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 12:39:36,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:36,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942482840] [2022-01-10 12:39:36,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942482840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:36,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:36,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:36,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101418310] [2022-01-10 12:39:36,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:36,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:36,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:36,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:36,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,047 INFO L87 Difference]: Start difference. First operand 1380 states and 1962 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:36,159 INFO L93 Difference]: Finished difference Result 2737 states and 3893 transitions. [2022-01-10 12:39:36,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:36,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:36,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:36,165 INFO L225 Difference]: With dead ends: 2737 [2022-01-10 12:39:36,165 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:36,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,168 INFO L933 BasicCegarLoop]: 1071 mSDtfsCounter, 982 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:36,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 1148 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:36,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.4053662073966642) internal successors, (1938), 1379 states have internal predecessors, (1938), 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 12:39:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1938 transitions. [2022-01-10 12:39:36,249 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1938 transitions. Word has length 114 [2022-01-10 12:39:36,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:36,250 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1938 transitions. [2022-01-10 12:39:36,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1938 transitions. [2022-01-10 12:39:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:36,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:36,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:36,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:39:36,252 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:36,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:36,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2108853547, now seen corresponding path program 1 times [2022-01-10 12:39:36,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:36,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859217941] [2022-01-10 12:39:36,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:36,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:36,292 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 12:39:36,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:36,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859217941] [2022-01-10 12:39:36,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859217941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:36,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:36,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:36,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789033887] [2022-01-10 12:39:36,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:36,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:36,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:36,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:36,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,294 INFO L87 Difference]: Start difference. First operand 1380 states and 1938 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:36,393 INFO L93 Difference]: Finished difference Result 2736 states and 3844 transitions. [2022-01-10 12:39:36,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:36,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:36,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:36,399 INFO L225 Difference]: With dead ends: 2736 [2022-01-10 12:39:36,399 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:36,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,402 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 968 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:36,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [968 Valid, 1133 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:36,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.387962291515591) internal successors, (1914), 1379 states have internal predecessors, (1914), 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 12:39:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1914 transitions. [2022-01-10 12:39:36,483 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1914 transitions. Word has length 114 [2022-01-10 12:39:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:36,483 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1914 transitions. [2022-01-10 12:39:36,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1914 transitions. [2022-01-10 12:39:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:36,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:36,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:36,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:39:36,485 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:36,485 INFO L85 PathProgramCache]: Analyzing trace with hash 760132268, now seen corresponding path program 1 times [2022-01-10 12:39:36,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:36,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473441385] [2022-01-10 12:39:36,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:36,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:36,518 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 12:39:36,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:36,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473441385] [2022-01-10 12:39:36,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473441385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:36,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:36,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:36,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423772818] [2022-01-10 12:39:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:36,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:36,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:36,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,521 INFO L87 Difference]: Start difference. First operand 1380 states and 1914 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:36,615 INFO L93 Difference]: Finished difference Result 2735 states and 3795 transitions. [2022-01-10 12:39:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:36,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:36,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:36,621 INFO L225 Difference]: With dead ends: 2735 [2022-01-10 12:39:36,621 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:36,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,624 INFO L933 BasicCegarLoop]: 1043 mSDtfsCounter, 954 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:36,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 1118 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:36,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.3705583756345177) internal successors, (1890), 1379 states have internal predecessors, (1890), 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 12:39:36,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1890 transitions. [2022-01-10 12:39:36,691 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1890 transitions. Word has length 114 [2022-01-10 12:39:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:36,692 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1890 transitions. [2022-01-10 12:39:36,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1890 transitions. [2022-01-10 12:39:36,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:36,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:36,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:36,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:39:36,693 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:36,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:36,694 INFO L85 PathProgramCache]: Analyzing trace with hash 733791498, now seen corresponding path program 1 times [2022-01-10 12:39:36,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:36,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894749907] [2022-01-10 12:39:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:36,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:36,725 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 12:39:36,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:36,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894749907] [2022-01-10 12:39:36,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894749907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:36,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:36,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:36,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977269899] [2022-01-10 12:39:36,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:36,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:36,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:36,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:36,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,727 INFO L87 Difference]: Start difference. First operand 1380 states and 1890 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:36,828 INFO L93 Difference]: Finished difference Result 2734 states and 3746 transitions. [2022-01-10 12:39:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:36,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:36,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:36,833 INFO L225 Difference]: With dead ends: 2734 [2022-01-10 12:39:36,833 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:36,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,836 INFO L933 BasicCegarLoop]: 1029 mSDtfsCounter, 940 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:36,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [940 Valid, 1103 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:36,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.3531544597534446) internal successors, (1866), 1379 states have internal predecessors, (1866), 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 12:39:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1866 transitions. [2022-01-10 12:39:36,904 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1866 transitions. Word has length 114 [2022-01-10 12:39:36,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:36,905 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1866 transitions. [2022-01-10 12:39:36,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1866 transitions. [2022-01-10 12:39:36,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:36,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:36,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:36,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:39:36,907 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:36,907 INFO L85 PathProgramCache]: Analyzing trace with hash -159372917, now seen corresponding path program 1 times [2022-01-10 12:39:36,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:36,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868855891] [2022-01-10 12:39:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:36,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:36,939 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 12:39:36,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:36,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868855891] [2022-01-10 12:39:36,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868855891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:36,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:36,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:36,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581520930] [2022-01-10 12:39:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:36,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:36,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:36,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:36,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:36,942 INFO L87 Difference]: Start difference. First operand 1380 states and 1866 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:37,040 INFO L93 Difference]: Finished difference Result 2733 states and 3697 transitions. [2022-01-10 12:39:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:37,045 INFO L225 Difference]: With dead ends: 2733 [2022-01-10 12:39:37,046 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:37,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:37,050 INFO L933 BasicCegarLoop]: 1015 mSDtfsCounter, 926 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:37,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 1088 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.3357505438723714) internal successors, (1842), 1379 states have internal predecessors, (1842), 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 12:39:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1842 transitions. [2022-01-10 12:39:37,155 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1842 transitions. Word has length 114 [2022-01-10 12:39:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:37,155 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1842 transitions. [2022-01-10 12:39:37,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1842 transitions. [2022-01-10 12:39:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:37,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:37,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:37,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:39:37,157 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:37,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:37,157 INFO L85 PathProgramCache]: Analyzing trace with hash -939807480, now seen corresponding path program 1 times [2022-01-10 12:39:37,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:37,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941474101] [2022-01-10 12:39:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:37,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:37,196 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 12:39:37,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:37,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941474101] [2022-01-10 12:39:37,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941474101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:37,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:37,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:39:37,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411256518] [2022-01-10 12:39:37,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:37,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:37,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:37,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:37,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:37,199 INFO L87 Difference]: Start difference. First operand 1380 states and 1842 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:37,311 INFO L93 Difference]: Finished difference Result 2732 states and 3648 transitions. [2022-01-10 12:39:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:37,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:37,317 INFO L225 Difference]: With dead ends: 2732 [2022-01-10 12:39:37,317 INFO L226 Difference]: Without dead ends: 1380 [2022-01-10 12:39:37,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:37,320 INFO L933 BasicCegarLoop]: 1001 mSDtfsCounter, 912 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:37,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [912 Valid, 1073 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:37,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-01-10 12:39:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2022-01-10 12:39:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.318346627991298) internal successors, (1818), 1379 states have internal predecessors, (1818), 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 12:39:37,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1818 transitions. [2022-01-10 12:39:37,422 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1818 transitions. Word has length 114 [2022-01-10 12:39:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:37,422 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 1818 transitions. [2022-01-10 12:39:37,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1818 transitions. [2022-01-10 12:39:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:37,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:37,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:37,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:39:37,424 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:37,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:37,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2135664758, now seen corresponding path program 1 times [2022-01-10 12:39:37,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:37,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771864351] [2022-01-10 12:39:37,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:37,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:37,493 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 12:39:37,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:37,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771864351] [2022-01-10 12:39:37,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771864351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:37,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:37,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:39:37,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081155055] [2022-01-10 12:39:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:37,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:39:37,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:37,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:39:37,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:39:37,496 INFO L87 Difference]: Start difference. First operand 1380 states and 1818 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:37,747 INFO L93 Difference]: Finished difference Result 3398 states and 4517 transitions. [2022-01-10 12:39:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:39:37,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:37,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:37,755 INFO L225 Difference]: With dead ends: 3398 [2022-01-10 12:39:37,755 INFO L226 Difference]: Without dead ends: 2060 [2022-01-10 12:39:37,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:39:37,758 INFO L933 BasicCegarLoop]: 1091 mSDtfsCounter, 2740 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2740 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:37,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2740 Valid, 2542 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:39:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2022-01-10 12:39:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1386. [2022-01-10 12:39:37,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 1.3054151624548735) internal successors, (1808), 1385 states have internal predecessors, (1808), 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 12:39:37,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1808 transitions. [2022-01-10 12:39:37,891 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1808 transitions. Word has length 114 [2022-01-10 12:39:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:37,891 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 1808 transitions. [2022-01-10 12:39:37,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:37,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1808 transitions. [2022-01-10 12:39:37,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:37,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:37,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:37,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:39:37,893 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:37,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:37,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1268612533, now seen corresponding path program 1 times [2022-01-10 12:39:37,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:37,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116362947] [2022-01-10 12:39:37,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:37,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:37,945 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 12:39:37,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:37,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116362947] [2022-01-10 12:39:37,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116362947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:37,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:37,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:39:37,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546595559] [2022-01-10 12:39:37,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:37,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:39:37,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:39:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:39:37,948 INFO L87 Difference]: Start difference. First operand 1386 states and 1808 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:38,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:38,199 INFO L93 Difference]: Finished difference Result 3801 states and 4995 transitions. [2022-01-10 12:39:38,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:39:38,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:38,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:38,209 INFO L225 Difference]: With dead ends: 3801 [2022-01-10 12:39:38,209 INFO L226 Difference]: Without dead ends: 2492 [2022-01-10 12:39:38,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:39:38,212 INFO L933 BasicCegarLoop]: 967 mSDtfsCounter, 2191 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:38,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2191 Valid, 3442 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:39:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2022-01-10 12:39:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 1392. [2022-01-10 12:39:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 1.2925952552120776) internal successors, (1798), 1391 states have internal predecessors, (1798), 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 12:39:38,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1798 transitions. [2022-01-10 12:39:38,360 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1798 transitions. Word has length 114 [2022-01-10 12:39:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:38,361 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1798 transitions. [2022-01-10 12:39:38,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1798 transitions. [2022-01-10 12:39:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:39:38,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:38,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:38,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:39:38,362 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1325614284, now seen corresponding path program 1 times [2022-01-10 12:39:38,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:38,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696659098] [2022-01-10 12:39:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:38,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:38,405 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 12:39:38,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:38,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696659098] [2022-01-10 12:39:38,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696659098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:38,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:38,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:38,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506622198] [2022-01-10 12:39:38,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:38,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:38,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:38,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:38,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:38,407 INFO L87 Difference]: Start difference. First operand 1392 states and 1798 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:38,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:38,655 INFO L93 Difference]: Finished difference Result 4004 states and 5147 transitions. [2022-01-10 12:39:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:38,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:39:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:38,678 INFO L225 Difference]: With dead ends: 4004 [2022-01-10 12:39:38,678 INFO L226 Difference]: Without dead ends: 2713 [2022-01-10 12:39:38,680 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 12:39:38,680 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 854 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:38,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 1965 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2022-01-10 12:39:38,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2598. [2022-01-10 12:39:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2597 states have (on average 1.2787832113977666) internal successors, (3321), 2597 states have internal predecessors, (3321), 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 12:39:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3321 transitions. [2022-01-10 12:39:38,903 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3321 transitions. Word has length 114 [2022-01-10 12:39:38,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:38,903 INFO L470 AbstractCegarLoop]: Abstraction has 2598 states and 3321 transitions. [2022-01-10 12:39:38,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:38,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3321 transitions. [2022-01-10 12:39:38,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:39:38,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:38,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:38,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 12:39:38,905 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:38,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1276556455, now seen corresponding path program 1 times [2022-01-10 12:39:38,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:38,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618082538] [2022-01-10 12:39:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:38,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:38,950 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 12:39:38,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:38,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618082538] [2022-01-10 12:39:38,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618082538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:38,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:38,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:38,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544366681] [2022-01-10 12:39:38,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:38,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:38,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:38,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:38,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:38,952 INFO L87 Difference]: Start difference. First operand 2598 states and 3321 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 12:39:39,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:39,404 INFO L93 Difference]: Finished difference Result 7298 states and 9313 transitions. [2022-01-10 12:39:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:39,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2022-01-10 12:39:39,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:39,424 INFO L225 Difference]: With dead ends: 7298 [2022-01-10 12:39:39,424 INFO L226 Difference]: Without dead ends: 4897 [2022-01-10 12:39:39,429 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 12:39:39,430 INFO L933 BasicCegarLoop]: 1432 mSDtfsCounter, 774 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:39,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [774 Valid, 2409 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:39,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2022-01-10 12:39:39,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 4894. [2022-01-10 12:39:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4894 states, 4893 states have (on average 1.2707950132842836) internal successors, (6218), 4893 states have internal predecessors, (6218), 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 12:39:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4894 states to 4894 states and 6218 transitions. [2022-01-10 12:39:39,836 INFO L78 Accepts]: Start accepts. Automaton has 4894 states and 6218 transitions. Word has length 115 [2022-01-10 12:39:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:39,836 INFO L470 AbstractCegarLoop]: Abstraction has 4894 states and 6218 transitions. [2022-01-10 12:39:39,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 12:39:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4894 states and 6218 transitions. [2022-01-10 12:39:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:39:39,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:39,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:39,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 12:39:39,840 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:39,840 INFO L85 PathProgramCache]: Analyzing trace with hash -194748168, now seen corresponding path program 1 times [2022-01-10 12:39:39,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:39,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986237579] [2022-01-10 12:39:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:39,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:39,870 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 12:39:39,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:39,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986237579] [2022-01-10 12:39:39,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986237579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:39,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:39,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:39,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7834836] [2022-01-10 12:39:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:39,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:39,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:39,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:39,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:39,873 INFO L87 Difference]: Start difference. First operand 4894 states and 6218 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 12:39:40,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:40,223 INFO L93 Difference]: Finished difference Result 9401 states and 11970 transitions. [2022-01-10 12:39:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:40,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2022-01-10 12:39:40,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:40,233 INFO L225 Difference]: With dead ends: 9401 [2022-01-10 12:39:40,233 INFO L226 Difference]: Without dead ends: 4704 [2022-01-10 12:39:40,241 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 12:39:40,241 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 991 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:40,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 995 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:40,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2022-01-10 12:39:40,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4704. [2022-01-10 12:39:40,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4704 states, 4703 states have (on average 1.2732298532851372) internal successors, (5988), 4703 states have internal predecessors, (5988), 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 12:39:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4704 states to 4704 states and 5988 transitions. [2022-01-10 12:39:40,542 INFO L78 Accepts]: Start accepts. Automaton has 4704 states and 5988 transitions. Word has length 115 [2022-01-10 12:39:40,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:40,542 INFO L470 AbstractCegarLoop]: Abstraction has 4704 states and 5988 transitions. [2022-01-10 12:39:40,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 12:39:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4704 states and 5988 transitions. [2022-01-10 12:39:40,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:39:40,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:40,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:40,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 12:39:40,545 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:40,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:40,545 INFO L85 PathProgramCache]: Analyzing trace with hash -105770620, now seen corresponding path program 1 times [2022-01-10 12:39:40,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:40,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944157501] [2022-01-10 12:39:40,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:40,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:40,584 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 12:39:40,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:40,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944157501] [2022-01-10 12:39:40,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944157501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:40,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:40,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:40,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681752657] [2022-01-10 12:39:40,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:40,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:40,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:40,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:40,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:40,586 INFO L87 Difference]: Start difference. First operand 4704 states and 5988 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:41,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:41,283 INFO L93 Difference]: Finished difference Result 13676 states and 17388 transitions. [2022-01-10 12:39:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 12:39:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:41,304 INFO L225 Difference]: With dead ends: 13676 [2022-01-10 12:39:41,305 INFO L226 Difference]: Without dead ends: 9169 [2022-01-10 12:39:41,315 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 12:39:41,316 INFO L933 BasicCegarLoop]: 1162 mSDtfsCounter, 856 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:41,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [856 Valid, 2128 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:41,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2022-01-10 12:39:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 8854. [2022-01-10 12:39:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8854 states, 8853 states have (on average 1.268270642719982) internal successors, (11228), 8853 states have internal predecessors, (11228), 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 12:39:41,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8854 states to 8854 states and 11228 transitions. [2022-01-10 12:39:41,917 INFO L78 Accepts]: Start accepts. Automaton has 8854 states and 11228 transitions. Word has length 116 [2022-01-10 12:39:41,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:41,918 INFO L470 AbstractCegarLoop]: Abstraction has 8854 states and 11228 transitions. [2022-01-10 12:39:41,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:41,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8854 states and 11228 transitions. [2022-01-10 12:39:41,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:39:41,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:41,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:41,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 12:39:41,921 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:41,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:41,921 INFO L85 PathProgramCache]: Analyzing trace with hash 492362340, now seen corresponding path program 1 times [2022-01-10 12:39:41,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:41,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176849245] [2022-01-10 12:39:41,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:41,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:41,952 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 12:39:41,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:41,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176849245] [2022-01-10 12:39:41,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176849245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:41,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:41,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:41,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112392634] [2022-01-10 12:39:41,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:41,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:41,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:41,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:41,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:41,954 INFO L87 Difference]: Start difference. First operand 8854 states and 11228 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:42,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:42,408 INFO L93 Difference]: Finished difference Result 17427 states and 22118 transitions. [2022-01-10 12:39:42,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:42,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 12:39:42,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:42,427 INFO L225 Difference]: With dead ends: 17427 [2022-01-10 12:39:42,428 INFO L226 Difference]: Without dead ends: 8666 [2022-01-10 12:39:42,442 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 12:39:42,443 INFO L933 BasicCegarLoop]: 994 mSDtfsCounter, 989 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:42,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [989 Valid, 994 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8666 states. [2022-01-10 12:39:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8666 to 8666. [2022-01-10 12:39:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8666 states, 8665 states have (on average 1.2697057126370457) internal successors, (11002), 8665 states have internal predecessors, (11002), 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 12:39:42,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8666 states to 8666 states and 11002 transitions. [2022-01-10 12:39:42,945 INFO L78 Accepts]: Start accepts. Automaton has 8666 states and 11002 transitions. Word has length 116 [2022-01-10 12:39:42,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:42,945 INFO L470 AbstractCegarLoop]: Abstraction has 8666 states and 11002 transitions. [2022-01-10 12:39:42,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:39:42,945 INFO L276 IsEmpty]: Start isEmpty. Operand 8666 states and 11002 transitions. [2022-01-10 12:39:42,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:39:42,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:42,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:42,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 12:39:42,948 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:42,948 INFO L85 PathProgramCache]: Analyzing trace with hash -220999578, now seen corresponding path program 1 times [2022-01-10 12:39:42,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:42,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027798402] [2022-01-10 12:39:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:42,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:42,991 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 12:39:42,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:42,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027798402] [2022-01-10 12:39:42,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027798402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:42,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:42,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:42,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432888361] [2022-01-10 12:39:42,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:42,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:42,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:42,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:42,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:42,993 INFO L87 Difference]: Start difference. First operand 8666 states and 11002 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 12:39:44,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:44,123 INFO L93 Difference]: Finished difference Result 25068 states and 31810 transitions. [2022-01-10 12:39:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:44,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2022-01-10 12:39:44,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:44,157 INFO L225 Difference]: With dead ends: 25068 [2022-01-10 12:39:44,158 INFO L226 Difference]: Without dead ends: 16599 [2022-01-10 12:39:44,171 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 12:39:44,172 INFO L933 BasicCegarLoop]: 993 mSDtfsCounter, 858 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:44,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 1848 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:44,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16599 states. [2022-01-10 12:39:45,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16599 to 16084. [2022-01-10 12:39:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16084 states, 16083 states have (on average 1.2670521668842878) internal successors, (20378), 16083 states have internal predecessors, (20378), 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 12:39:45,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16084 states to 16084 states and 20378 transitions. [2022-01-10 12:39:45,078 INFO L78 Accepts]: Start accepts. Automaton has 16084 states and 20378 transitions. Word has length 117 [2022-01-10 12:39:45,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:45,079 INFO L470 AbstractCegarLoop]: Abstraction has 16084 states and 20378 transitions. [2022-01-10 12:39:45,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 12:39:45,079 INFO L276 IsEmpty]: Start isEmpty. Operand 16084 states and 20378 transitions. [2022-01-10 12:39:45,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:39:45,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:45,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:45,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 12:39:45,081 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:45,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:45,082 INFO L85 PathProgramCache]: Analyzing trace with hash -408274414, now seen corresponding path program 1 times [2022-01-10 12:39:45,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:45,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050977439] [2022-01-10 12:39:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:45,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:45,127 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 12:39:45,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:45,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050977439] [2022-01-10 12:39:45,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050977439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:45,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:45,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:45,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585106941] [2022-01-10 12:39:45,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:45,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:45,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:45,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:45,129 INFO L87 Difference]: Start difference. First operand 16084 states and 20378 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 12:39:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:46,911 INFO L93 Difference]: Finished difference Result 46776 states and 59200 transitions. [2022-01-10 12:39:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:46,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2022-01-10 12:39:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:46,963 INFO L225 Difference]: With dead ends: 46776 [2022-01-10 12:39:46,964 INFO L226 Difference]: Without dead ends: 30889 [2022-01-10 12:39:46,992 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 12:39:46,992 INFO L933 BasicCegarLoop]: 1127 mSDtfsCounter, 857 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:46,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 2090 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:39:47,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30889 states. [2022-01-10 12:39:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30889 to 30086. [2022-01-10 12:39:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30086 states, 30085 states have (on average 1.2638856573043045) internal successors, (38024), 30085 states have internal predecessors, (38024), 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 12:39:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30086 states to 30086 states and 38024 transitions. [2022-01-10 12:39:48,809 INFO L78 Accepts]: Start accepts. Automaton has 30086 states and 38024 transitions. Word has length 118 [2022-01-10 12:39:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:48,810 INFO L470 AbstractCegarLoop]: Abstraction has 30086 states and 38024 transitions. [2022-01-10 12:39:48,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 12:39:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 30086 states and 38024 transitions. [2022-01-10 12:39:48,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:39:48,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:48,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:48,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 12:39:48,813 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:48,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:48,814 INFO L85 PathProgramCache]: Analyzing trace with hash -493162446, now seen corresponding path program 1 times [2022-01-10 12:39:48,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:48,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904903787] [2022-01-10 12:39:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:48,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:48,839 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 12:39:48,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:48,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904903787] [2022-01-10 12:39:48,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904903787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:48,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:48,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:48,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715733639] [2022-01-10 12:39:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:48,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:48,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:48,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:48,841 INFO L87 Difference]: Start difference. First operand 30086 states and 38024 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 12:39:50,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:50,576 INFO L93 Difference]: Finished difference Result 59867 states and 75682 transitions. [2022-01-10 12:39:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2022-01-10 12:39:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:50,630 INFO L225 Difference]: With dead ends: 59867 [2022-01-10 12:39:50,630 INFO L226 Difference]: Without dead ends: 29902 [2022-01-10 12:39:50,658 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 12:39:50,659 INFO L933 BasicCegarLoop]: 993 mSDtfsCounter, 986 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:50,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 993 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:50,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29902 states. [2022-01-10 12:39:52,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29902 to 29902. [2022-01-10 12:39:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29902 states, 29901 states have (on average 1.2643055416206816) internal successors, (37804), 29901 states have internal predecessors, (37804), 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 12:39:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29902 states to 29902 states and 37804 transitions. [2022-01-10 12:39:52,687 INFO L78 Accepts]: Start accepts. Automaton has 29902 states and 37804 transitions. Word has length 118 [2022-01-10 12:39:52,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:52,688 INFO L470 AbstractCegarLoop]: Abstraction has 29902 states and 37804 transitions. [2022-01-10 12:39:52,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 12:39:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 29902 states and 37804 transitions. [2022-01-10 12:39:52,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:39:52,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:52,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:52,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 12:39:52,691 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:52,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:52,691 INFO L85 PathProgramCache]: Analyzing trace with hash -279279401, now seen corresponding path program 1 times [2022-01-10 12:39:52,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:52,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660039369] [2022-01-10 12:39:52,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:52,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:52,735 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 12:39:52,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:52,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660039369] [2022-01-10 12:39:52,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660039369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:52,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:52,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:52,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181825493] [2022-01-10 12:39:52,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:52,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:52,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:52,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:52,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:52,737 INFO L87 Difference]: Start difference. First operand 29902 states and 37804 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 12:39:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:39:55,700 INFO L93 Difference]: Finished difference Result 86538 states and 109266 transitions. [2022-01-10 12:39:55,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:39:55,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2022-01-10 12:39:55,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:39:55,794 INFO L225 Difference]: With dead ends: 86538 [2022-01-10 12:39:55,794 INFO L226 Difference]: Without dead ends: 56833 [2022-01-10 12:39:55,826 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 12:39:55,827 INFO L933 BasicCegarLoop]: 1082 mSDtfsCounter, 857 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:39:55,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 2043 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:39:55,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56833 states. [2022-01-10 12:39:59,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56833 to 55486. [2022-01-10 12:39:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55486 states, 55485 states have (on average 1.2608452734973417) internal successors, (69958), 55485 states have internal predecessors, (69958), 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 12:39:59,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55486 states to 55486 states and 69958 transitions. [2022-01-10 12:39:59,392 INFO L78 Accepts]: Start accepts. Automaton has 55486 states and 69958 transitions. Word has length 119 [2022-01-10 12:39:59,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:39:59,393 INFO L470 AbstractCegarLoop]: Abstraction has 55486 states and 69958 transitions. [2022-01-10 12:39:59,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 12:39:59,393 INFO L276 IsEmpty]: Start isEmpty. Operand 55486 states and 69958 transitions. [2022-01-10 12:39:59,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:39:59,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:39:59,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:39:59,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 12:39:59,397 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:39:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:39:59,397 INFO L85 PathProgramCache]: Analyzing trace with hash 822866261, now seen corresponding path program 1 times [2022-01-10 12:39:59,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:39:59,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207705477] [2022-01-10 12:39:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:39:59,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:39:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:39:59,439 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 12:39:59,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:39:59,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207705477] [2022-01-10 12:39:59,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207705477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:39:59,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:39:59,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:39:59,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979815579] [2022-01-10 12:39:59,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:39:59,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:39:59,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:39:59,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:39:59,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:39:59,441 INFO L87 Difference]: Start difference. First operand 55486 states and 69958 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 12:40:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:02,781 INFO L93 Difference]: Finished difference Result 110655 states and 139538 transitions. [2022-01-10 12:40:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:02,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2022-01-10 12:40:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:02,948 INFO L225 Difference]: With dead ends: 110655 [2022-01-10 12:40:02,948 INFO L226 Difference]: Without dead ends: 55304 [2022-01-10 12:40:02,988 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 12:40:02,989 INFO L933 BasicCegarLoop]: 992 mSDtfsCounter, 984 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:02,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 992 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:03,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55304 states. [2022-01-10 12:40:06,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55304 to 55304. [2022-01-10 12:40:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55304 states, 55303 states have (on average 1.2610889101857041) internal successors, (69742), 55303 states have internal predecessors, (69742), 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 12:40:06,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55304 states to 55304 states and 69742 transitions. [2022-01-10 12:40:06,349 INFO L78 Accepts]: Start accepts. Automaton has 55304 states and 69742 transitions. Word has length 119 [2022-01-10 12:40:06,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:06,349 INFO L470 AbstractCegarLoop]: Abstraction has 55304 states and 69742 transitions. [2022-01-10 12:40:06,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 12:40:06,350 INFO L276 IsEmpty]: Start isEmpty. Operand 55304 states and 69742 transitions. [2022-01-10 12:40:06,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:40:06,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:06,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:06,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 12:40:06,352 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:40:06,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:06,352 INFO L85 PathProgramCache]: Analyzing trace with hash 469256031, now seen corresponding path program 1 times [2022-01-10 12:40:06,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:06,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522118922] [2022-01-10 12:40:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:06,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:06,422 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 12:40:06,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:06,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522118922] [2022-01-10 12:40:06,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522118922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:06,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:06,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:06,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167557550] [2022-01-10 12:40:06,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:06,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:06,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:06,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:06,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:06,424 INFO L87 Difference]: Start difference. First operand 55304 states and 69742 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 12:40:11,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:11,909 INFO L93 Difference]: Finished difference Result 157500 states and 198404 transitions. [2022-01-10 12:40:11,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:11,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2022-01-10 12:40:11,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:12,223 INFO L225 Difference]: With dead ends: 157500 [2022-01-10 12:40:12,223 INFO L226 Difference]: Without dead ends: 102393 [2022-01-10 12:40:12,285 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 12:40:12,286 INFO L933 BasicCegarLoop]: 1033 mSDtfsCounter, 794 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:12,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [794 Valid, 2001 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102393 states. [2022-01-10 12:40:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102393 to 102390. [2022-01-10 12:40:18,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102390 states, 102389 states have (on average 1.257517897430388) internal successors, (128756), 102389 states have internal predecessors, (128756), 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 12:40:18,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102390 states to 102390 states and 128756 transitions. [2022-01-10 12:40:18,561 INFO L78 Accepts]: Start accepts. Automaton has 102390 states and 128756 transitions. Word has length 120 [2022-01-10 12:40:18,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:18,561 INFO L470 AbstractCegarLoop]: Abstraction has 102390 states and 128756 transitions. [2022-01-10 12:40:18,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 12:40:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 102390 states and 128756 transitions. [2022-01-10 12:40:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:40:18,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:18,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:18,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 12:40:18,566 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:40:18,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1551064318, now seen corresponding path program 1 times [2022-01-10 12:40:18,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:18,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903535601] [2022-01-10 12:40:18,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:18,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:18,601 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 12:40:18,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:18,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903535601] [2022-01-10 12:40:18,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903535601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:18,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:18,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:40:18,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131805973] [2022-01-10 12:40:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:18,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:18,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:18,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:18,602 INFO L87 Difference]: Start difference. First operand 102390 states and 128756 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 12:40:24,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:40:24,987 INFO L93 Difference]: Finished difference Result 204403 states and 257072 transitions. [2022-01-10 12:40:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:40:24,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2022-01-10 12:40:24,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:40:25,178 INFO L225 Difference]: With dead ends: 204403 [2022-01-10 12:40:25,179 INFO L226 Difference]: Without dead ends: 102210 [2022-01-10 12:40:25,261 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 12:40:25,262 INFO L933 BasicCegarLoop]: 991 mSDtfsCounter, 982 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:40:25,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 991 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:40:25,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102210 states. [2022-01-10 12:40:31,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102210 to 102210. [2022-01-10 12:40:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102210 states, 102209 states have (on average 1.257658327544541) internal successors, (128544), 102209 states have internal predecessors, (128544), 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 12:40:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102210 states to 102210 states and 128544 transitions. [2022-01-10 12:40:31,656 INFO L78 Accepts]: Start accepts. Automaton has 102210 states and 128544 transitions. Word has length 120 [2022-01-10 12:40:31,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:40:31,656 INFO L470 AbstractCegarLoop]: Abstraction has 102210 states and 128544 transitions. [2022-01-10 12:40:31,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 12:40:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand 102210 states and 128544 transitions. [2022-01-10 12:40:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 12:40:31,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:40:31,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:40:31,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 12:40:31,659 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 12:40:31,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:40:31,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1590389045, now seen corresponding path program 1 times [2022-01-10 12:40:31,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:40:31,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503216753] [2022-01-10 12:40:31,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:40:31,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:40:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:40:31,708 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 12:40:31,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:40:31,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503216753] [2022-01-10 12:40:31,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503216753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:40:31,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:40:31,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:40:31,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867851449] [2022-01-10 12:40:31,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:40:31,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:40:31,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:40:31,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:40:31,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:40:31,710 INFO L87 Difference]: Start difference. First operand 102210 states and 128544 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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)